On 12/17/06, Xen Help <steven@savetimehosting.net> wrote:> Hi, > > Does anyone knows how to have modules installed when compiling and > installing Xen as the README file is incomplete about it. > I cannot simply run make module_install somwhow.What do you mean with "i cannot run it somehow?" (if nor just the senetences you wrote after this, which mean, you can run it, but it doesn''t have the effect you where hoping for)> I did compile the three > flavors (-xen -xen0 -xenU) with iptables options BUT the modules are > never installed. I am on CentOS 4-4Where do you expect them to be? Or, what are the smyptoms for your assumption that they are not installed? Henning _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Xen Help wrote:> Hi, > > Does anyone knows how to have modules installed when compiling and > installing Xen as the README file is incomplete about it. > I cannot simply run make module_install somwhow. I did compile the three > flavors (-xen -xen0 -xenU) with iptables options BUT the modules are > never installed. I am on CentOS 4-4 > > Any advices would be appreciated. > > The recommended -xen do not even boot dom0, the dom0 boots BUT no > iptables modules and likewise for the domU. > > Regards, >Did you change EXTRAVERSION in the kernel Makefile? -- Christopher G. Stach II _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi, Does anyone knows how to have modules installed when compiling and installing Xen as the README file is incomplete about it. I cannot simply run make module_install somwhow. I did compile the three flavors (-xen -xen0 -xenU) with iptables options BUT the modules are never installed. I am on CentOS 4-4 Any advices would be appreciated. The recommended -xen do not even boot dom0, the dom0 boots BUT no iptables modules and likewise for the domU. Regards, -- Virtual Space International Inc. Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 -------------------------------------------------------------- Internet Is Here To Stay, Make Sure Your Business Is! -------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Christopher G. Stach II wrote:> Xen Help wrote: > >> Hi, >> >> Does anyone knows how to have modules installed when compiling and >> installing Xen as the README file is incomplete about it. >> I cannot simply run make module_install somwhow. I did compile the three >> flavors (-xen -xen0 -xenU) with iptables options BUT the modules are >> never installed. I am on CentOS 4-4 >> >> Any advices would be appreciated. >> >> The recommended -xen do not even boot dom0, the dom0 boots BUT no >> iptables modules and likewise for the domU. >> >> Regards, >> >> > > Did you change EXTRAVERSION in the kernel Makefile? >I am not sure I understand, but I tried all what I could understand in the Makefile but it never works, somehow the modules are not installed, also i get many error when I specify xen0 or xenU. I am not a Xen/Kernel hacker not a C programmer, so I am pretty much left with whatever instructions Xen people gave in their documentation which is not much :-( I get this when I run this command after having edited the .config file for xen0 to make sure iptables is enable (with Xtable etc.): make KERNELS="linux-2.6-xen0 linux-2.6-xenU" . . . make -C linux-2.6.16.29-xen0 ARCH=i386 INSTALL_PATH=/rpms/Xensrc/xen-3.0.3_0-src/dist/install install make[3]: Entering directory `/rpms/Xensrc/xen-3.0.3_0-src/linux-2.6.16.29-xen0'' sh /rpms/Xensrc/xen-3.0.3_0-src/linux-2.6.16.29-xen0/arch/i386/boot/install.sh 2.6.16.29-xen0 arch/i386/boot/bzImage System.map "/rpms/Xensrc/xen-3.0.3_0-src/dist/install" *** Missing file: arch/i386/boot/bzImage *** You need to run "make" before "make install". make[4]: *** [install] Error 1 make[3]: *** [install] Error 2 make[3]: Leaving directory `/rpms/Xensrc/xen-3.0.3_0-src/linux-2.6.16.29-xen0'' make[2]: *** [build] Error 2 make[2]: Leaving directory `/rpms/Xensrc/xen-3.0.3_0-src'' make[1]: *** [linux-2.6-xen0-install] Error 2 make[1]: Leaving directory `/rpms/Xensrc/xen-3.0.3_0-src'' make: *** [install-kernels] Error 1 -- Virtual Space International Inc. Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 -------------------------------------------------------------- Internet Is Here To Stay, Make Sure Your Business Is! -------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Henning Sprang wrote:> On 12/17/06, Xen Help <steven@savetimehosting.net> wrote: >> Hi, >> >> Does anyone knows how to have modules installed when compiling and >> installing Xen as the README file is incomplete about it. >> I cannot simply run make module_install somwhow. > > What do you mean with "i cannot run it somehow?" (if nor just the > senetences you wrote after this, which mean, you can run it, but it > doesn''t have the effect you where hoping for)Well what I meant is that the "xen recommended way" to run (or build) with only one kernel for both dom0 and domU will not boot at all on CentOs4-4, I spent days on it without any hope of solving the issue with the list''s help only, while I discovered that the compiled dom0 and dumU version would boot, the only problem remaining is having the right modules installed in /lib/modules/ for iptables, they do not show up, see the compared listing. I cannot get the modules compiled and installed into the right directory. I believe the iptables modules for latest Xen are not compatible with CentOs 4-4, maybe with CentOs 4-3. Is there any published data about Xen compatibility with the distros versions? I mean they upgrade in each new version Glibc and Gcc so this seems to be a major consideration to anyone wanting to keep system updated and secured? The 2.6.16.29-xen0 version below do not have iptables modules installed. total 48K drwxr-xr-x 3 root root 4.0K Dec 17 16:54 2.6.16.29-xen drwxr-xr-x 8 root root 4.0K Dec 15 11:04 . drwxr-xr-x 3 root root 4.0K Dec 14 21:31 2.6.16.29-xenU drwxr-xr-x 11 root root 4.0K Dec 14 21:20 .. drwxr-xr-x 3 root root 4.0K Dec 14 21:20 2.6.16.29-xen0 drwxr-xr-x 3 root root 4.0K Dec 14 15:36 2.6.9-42.0.3.EL I will make a few more test tonight. I also tried with the newest XenExpress, BUT unfortunately I ran into same kind of problems but with domU and no support at all unless I pay some bucks, which is not what I think about open source. This is very very bad. On this version we do not know much about it''s original OS, it uses LVM BUT the /dev/hdx /dev/sdx are formated in Linux 8e instead of LVM which is kind of strange, also when I copy over existing CentOS4-4 domU which are running fine on old servers, it gives very little error messages but do not run and the doc does define what importing a server means (must be the server config file from what I understand), so I am back to square one. Because we have production servers we will have to switch to Vmware which seems better documented if we cannot find a decent solution before the end of the year, but it is sad as I was having fun with Xen over the last 2 years and invested a lot of time in it, it just became impossible to manage. I believe part of the problem is the fact that Xen became somehow a closed source system and that the fact we cannot get it up and running as one would expect is a planned decision, the lack of information about the exact requirements is an indication of the direction this project is going. If nobody can find out which version of libraries are compatible with any given released version of Xen, you imagine how hard update decisions becomes, which in my opinion is the very definition of unmanageable. The bad thing is the considerable waste of time to try to guess things. If someone at XenSource is reading, you are about to lose a potential client as I am about to switch to another virtualization technology soon. We must have spent over 120 hours since the first broken version of Xen under FC5 in August and we tried really hard to keep our production servers afloat with Xen, BUT now we are stuck with old version we cannot upgrade, which is a lot of stress we would rather not have. All distro we tried were broken somewhere, as well as all binaries and compiling from source is just a nightmare of guessing and trial and error tests. Reading the list we see people have all the same problems. We had hopes from the newest XenExpress but it did not help (the Java management interface is cute though) , I feel Xen is becoming more and more Windozed which is not exactly what we are interested in. I hope Xen will improve, BUT now for us it is a huge management problem and a serious technological constraint. Switching to Vmware becomes more and more of a necessity than a happy choice. ++> >> I did compile the three >> flavors (-xen -xen0 -xenU) with iptables options BUT the modules are >> never installed. I am on CentOS 4-4 > > Where do you expect them to be? Or, what are the smyptoms for your > assumption that they are not installed? > > Henning >-- Virtual Space International Inc. Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 -------------------------------------------------------------- Internet Is Here To Stay, Make Sure Your Business Is! -------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Henning Sprang
2006-Dec-18 00:52 UTC
Re: [Xen-users] Installing modules - switch to Vmware ?
On 12/18/06, Xen Help <steven@savetimehosting.net> wrote:> Well what I meant is that the "xen recommended way" to run (or build) > with only one kernel for both dom0 and domU will not boot at all on > CentOs4-4, I spent days on it without any hope of solving the issue with > the list''s help only, while I discovered that the compiled dom0 and dumU > version would boot, the only problem remaining is having the right > modules installed in /lib/modules/ for iptables, they do not show up, > see the compared listing. > > I cannot get the modules compiled and installed into the right directory. > > I believe the iptables modules for latest Xen are not compatible with > CentOs 4-4, maybe with CentOs 4-3. > Is there any published data about Xen compatibility with the distros > versions?Hmm, no idea, here xen 3.0.3 runs fine with debian sarge, which is probably a bit older than centos 4.4. I share your thoughts that Xen is not very well documented in a lot of areas( as I am an author, I must admit that this fact is a bit to my favour). As far as I understand it, Xensource doesn''t see themselves as the people providing end users with a Xen Linux kernel for your distribution - they see this as the work of the distributors (also, security patches for these kernels are the work of the distribution package managers, or did you ever see a security update for a Xen Linux kernel?). Xensource GPL software is kind of rough-edged. This gives xensource the possibility to sell their own polished products to paying customers - why not, on the other hand, they give a lot of knowledge away for free - but this also opens the door for a lot of third party developers who can build additional software that eases management of Xen systems. This is easier for third parties because it''s open source, and they don''t need to have a deal with a closed source shop to get information on how to work with the system - you just look in the sources... sure, some knowledge and time assumed. Sorry for not being able to help you, this iptables problem sounds really strange. Don''t the binary rpm''s for rhel work for you? BTW: maybe the problem is also that redhat does specific things to make their systems less interoperable? At least on fedora there are massive compatibility problems, and all things are much different than on all other systems. Try something really free - Debian Sarge and Etch work just fine with Xen. Henning _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Christopher G. Stach II
2006-Dec-18 02:34 UTC
Re: [Xen-users] Installing modules - switch to Vmware ?
Xen Help wrote:> Henning Sprang wrote: >> On 12/17/06, Xen Help <steven@savetimehosting.net> wrote: >>> Hi, >>> >>> Does anyone knows how to have modules installed when compiling and >>> installing Xen as the README file is incomplete about it. >>> I cannot simply run make module_install somwhow. >> >> What do you mean with "i cannot run it somehow?" (if nor just the >> senetences you wrote after this, which mean, you can run it, but it >> doesn''t have the effect you where hoping for) > Well what I meant is that the "xen recommended way" to run (or build) > with only one kernel for both dom0 and domU will not boot at all on > CentOs4-4, I spent days on it without any hope of solving the issue with > the list''s help only, while I discovered that the compiled dom0 and dumU > version would boot, the only problem remaining is having the right > modules installed in /lib/modules/ for iptables, they do not show up, > see the compared listing. > > I cannot get the modules compiled and installed into the right directory. > > I believe the iptables modules for latest Xen are not compatible with > CentOs 4-4, maybe with CentOs 4-3. > Is there any published data about Xen compatibility with the distros > versions? I mean they upgrade in each new version Glibc and Gcc so this > seems to be a major consideration to anyone wanting to keep system > updated and secured? > > The 2.6.16.29-xen0 version below do not have iptables modules installed. > > total 48K > drwxr-xr-x 3 root root 4.0K Dec 17 16:54 2.6.16.29-xen > drwxr-xr-x 8 root root 4.0K Dec 15 11:04 . > drwxr-xr-x 3 root root 4.0K Dec 14 21:31 2.6.16.29-xenU > drwxr-xr-x 11 root root 4.0K Dec 14 21:20 .. > drwxr-xr-x 3 root root 4.0K Dec 14 21:20 2.6.16.29-xen0 > drwxr-xr-x 3 root root 4.0K Dec 14 15:36 2.6.9-42.0.3.EL > > I will make a few more test tonight. I also tried with the newest > XenExpress, BUT unfortunately I ran into same kind of problems but with > domU and no support at all unless I pay some bucks, which is not what I > think about open source. This is very very bad. On this version we do > not know much about it''s original OS, it uses LVM BUT the /dev/hdx > /dev/sdx are formated in Linux 8e instead of LVM which is kind of > strange, also when I copy over existing CentOS4-4 domU which are running > fine on old servers, it gives very little error messages but do not run > and the doc does define what importing a server means (must be the > server config file from what I understand), so I am back to square one. > > Because we have production servers we will have to switch to Vmware > which seems better documented if we cannot find a decent solution before > the end of the year, but it is sad as I was having fun with Xen over > the last 2 years and invested a lot of time in it, it just became > impossible to manage. > > I believe part of the problem is the fact that Xen became somehow a > closed source system and that the fact we cannot get it up and running > as one would expect is a planned decision, the lack of information about > the exact requirements is an indication of the direction this project is > going. If nobody can find out which version of libraries are compatible > with any given released version of Xen, you imagine how hard update > decisions becomes, which in my opinion is the very definition of > unmanageable. The bad thing is the considerable waste of time to try to > guess things. > > If someone at XenSource is reading, you are about to lose a potential > client as I am about to switch to another virtualization technology > soon. We must have spent over 120 hours since the first broken version > of Xen under FC5 in August and we tried really hard to keep our > production servers afloat with Xen, BUT now we are stuck with old > version we cannot upgrade, which is a lot of stress we would rather not > have. All distro we tried were broken somewhere, as well as all binaries > and compiling from source is just a nightmare of guessing and trial and > error tests. Reading the list we see people have all the same problems. > > We had hopes from the newest XenExpress but it did not help (the Java > management interface is cute though) , I feel Xen is becoming more and > more Windozed which is not exactly what we are interested in. I hope Xen > will improve, BUT now for us it is a huge management problem and a > serious technological constraint. Switching to Vmware becomes more and > more of a necessity than a happy choice. >If you''re having trouble building kernels and booting Linux distros of all sorts, you''re in over your head. You''re only using the unsupported code, so of course you wouldn''t get much help from XenSource. What kind of business model would that be? Your crying for help, not providing useful information, taking recommendations, expecting things to work the way you think they work, or trying setups that _do_ work as recommendations to test is only cluttering the list and frustrating you. Frankly, I doubt anyone would want to bend over backwards to keep the interest of a potential client from hell. Stick with VMware, buy a shrink wrapped commercially supported Xen-based product with consultants who will hold your hand while you point and click, or stop messing around and cooperate with the community (after you learn how to patch, configure, and compile a kernel on your own.) BTW, iptables, CentOS 4.4, and recent domU kernels work _fine_ together. -- Christopher G. Stach II _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi -> Does anyone knows how to have modules installed when compiling and > installing Xen as the README file is incomplete about it. > I cannot simply run make module_install somwhow. I did compile the three > flavors (-xen -xen0 -xenU) with iptables options BUT the modules are > never installed. I am on CentOS 4-4 > > Any advices would be appreciated. > > The recommended -xen do not even boot dom0, the dom0 boots BUT no > iptables modules and likewise for the domU.Did you try to copy /lib/modules/the-kernel-modules from your dom0 to your domUs, then depmod -a? BTW, I usually prefer when possible to include every required modules as "build in" to avoid having to update modules of the domUs each time the dom0 kernel is released. This is particulary try ie for iptables which is used by every domU I have in production. HTH -- Olivier Le Cam Département des Technologies de l''Information et de la Communication CRDP de l''académie de Versailles _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Steven Dugway
2006-Dec-18 05:09 UTC
Re: [Xen-users] Installing modules - switch to Vmware ?
Henning Sprang wrote:> On 12/18/06, Xen Help <steven@savetimehosting.net> wrote: >> Well what I meant is that the "xen recommended way" to run (or build) >> with only one kernel for both dom0 and domU will not boot at all on >> CentOs4-4, I spent days on it without any hope of solving the issue with >> the list''s help only, while I discovered that the compiled dom0 and dumU >> version would boot, the only problem remaining is having the right >> modules installed in /lib/modules/ for iptables, they do not show up, >> see the compared listing. >> >> I cannot get the modules compiled and installed into the right >> directory. >> >> I believe the iptables modules for latest Xen are not compatible with >> CentOs 4-4, maybe with CentOs 4-3. >> Is there any published data about Xen compatibility with the distros >> versions? > > Hmm, no idea, here xen 3.0.3 runs fine with debian sarge, which is > probably a bit older than centos 4.4. > > I share your thoughts that Xen is not very well documented in a lot of > areas( as I am an author, I must admit that this fact is a bit to my > favour). As far as I understand it, Xensource doesn''t see themselves > as the people providing end users with a Xen Linux kernel for your > distribution - they see this as the work of the distributors (also, > security patches for these kernels are the work of the distribution > package managers, or did you ever see a security update for a Xen > Linux kernel?). > > Xensource GPL software is kind of rough-edged. This gives xensource > the possibility to sell their own polished products to paying > customers - why not, on the other hand, they give a lot of knowledge > away for free - but this also opens the door for a lot of third party > developers who can build additional software that eases management of > Xen systems. > This is easier for third parties because it''s open source, and they > don''t need to have a deal with a closed source shop to get information > on how to work with the system - you just look in the sources... sure, > some knowledge and time assumed. > > Sorry for not being able to help you, this iptables problem sounds > really strange. > Don''t the binary rpm''s for rhel work for you? > > BTW: maybe the problem is also that redhat does specific things to > make their systems less interoperable? At least on fedora there are > massive compatibility problems, and all things are much different than > on all other systems. Try something really free - Debian Sarge and > Etch work just fine with Xen.Thanks for your input and point of view, it make sense. Thanks also for sharing what you know about the derivative products from Red Hat (Fedora, CentOs), I will test with Debian tomorow. Regards,> > Henning > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- Virtual Space International Inc. Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 Skype:stevenvsi; savetimehosting.net 911hosting.net goodprivacy.net -------------------------------------------------------------- Internet Is Here To Stay, Make Sure Your Business Is! -------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Xen Help > Sent: 18 December 2006 14:36 > To: Olivier Le Cam > Cc: xen-users@lists.xensource.com > Subject: Re: [Xen-users] Installing modules > > Olivier Le Cam wrote: > > Hi - > > > >> Does anyone knows how to have modules installed when compiling and > >> installing Xen as the README file is incomplete about it. > >> I cannot simply run make module_install somwhow. I did compile the > >> three flavors (-xen -xen0 -xenU) with iptables options BUT the > >> modules are never installed. I am on CentOS 4-4 > >> > >> Any advices would be appreciated. > >> > >> The recommended -xen do not even boot dom0, the dom0 boots BUT no > >> iptables modules and likewise for the domU. > > > > Did you try to copy /lib/modules/the-kernel-modules from > your dom0 to > > your domUs, then depmod -a? > SureIf you''re using modules, remember that you need to include the xen netfront, blkfront drivers for DomU, and the netback, blkback for Dom0 using the "--with" on your mkinitrd command - that is of course assuming you made these mdoules rather than built-in device drivers as is the default.> > > > BTW, I usually prefer when possible to include every > required modules > > as "build in" to avoid having to update modules of the > domUs each time > > the dom0 kernel is released. This is particulary try ie for > iptables > > which is used by every domU I have in production. > > > I did it with everything I needed compiled in AND also in a different > version as modules but no chance, I know it is probably > trivial BUT it > is and no domU will boot.Exactly what is going wrong? Which version of Xen are you using? As explained above, if you have built-in everything you need and a correct configuration file for the DomU, it should be fine to boot - getting iptables to work has nothing directly to do with Xen, although there may be some extra work needed because network interfaces may need to be renamed in the rules for iptables.> > Thanks anyway. > > HTH > > > -- > Virtual Space International Inc. > Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 > -------------------------------------------------------------- > Internet Is Here To Stay, Make Sure Your Business Is! > -------------------------------------------------------------- > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Olivier Le Cam wrote:> Hi - > >> Does anyone knows how to have modules installed when compiling and >> installing Xen as the README file is incomplete about it. >> I cannot simply run make module_install somwhow. I did compile the >> three flavors (-xen -xen0 -xenU) with iptables options BUT the >> modules are never installed. I am on CentOS 4-4 >> >> Any advices would be appreciated. >> >> The recommended -xen do not even boot dom0, the dom0 boots BUT no >> iptables modules and likewise for the domU. > > Did you try to copy /lib/modules/the-kernel-modules from your dom0 to > your domUs, then depmod -a?Sure> > BTW, I usually prefer when possible to include every required modules > as "build in" to avoid having to update modules of the domUs each time > the dom0 kernel is released. This is particulary try ie for iptables > which is used by every domU I have in production. >I did it with everything I needed compiled in AND also in a different version as modules but no chance, I know it is probably trivial BUT it is and no domU will boot. Thanks anyway.> HTH-- Virtual Space International Inc. Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 -------------------------------------------------------------- Internet Is Here To Stay, Make Sure Your Business Is! -------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Edward Ing
2006-Dec-18 15:50 UTC
[Xen-users] HVMloader boots cdrom but get a blank screen.
Hi, I am trying to install several OSes using HVMloader/cdrom booting method. When I look at the console I see that the cdrom boot takes place, very quickly, however the domU boots into a blank/black screen when installing Ubuntu, Kbuntu. It boots into a console, but I can see that there is a boot loader error when booting to a FreeBSD cdrom. Windows XP works fine. I don''t think that there is much I can do about this. It is the problem of distro boot cdrom. But generally, can anyone explain what is the problem with distros that run into this problem. I am about to try SUSE. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Petersson, Mats
2006-Dec-18 16:06 UTC
RE: [Xen-users] HVMloader boots cdrom but get a blank screen.
> -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Edward Ing > Sent: 18 December 2006 15:51 > To: xen-users@lists.xensource.com > Subject: [Xen-users] HVMloader boots cdrom but get a blank screen. > > Hi, > > I am trying to install several OSes using HVMloader/cdrom booting > method. > When I look at the console I see that the cdrom boot takes place, very > quickly, however the domU boots into a blank/black screen when > installing Ubuntu, Kbuntu. It boots into a console, but I can see that > there is a boot loader error when booting to a FreeBSD cdrom. > Windows XP > works fine.Try using a "text-only" boot. I know for a fact that some of the graphics boot routines use "tricky stuff" like "big real-mode", which particularly on Intel platforms that don''t have "real mode virtualization" in hardware, it can be tricky to make it work. FreeBSD, I think, uses segments with base != 0 in protected mode, which can also be a cause for problems.> > I don''t think that there is much I can do about this. It is > the problem > of distro boot cdrom. But generally, can anyone explain what is the > problem with distros that run into this problem.Generically, I would say that the problem is with either the load-process (where the initial boot-loader loads the installation kernel) or with graphical boot routines, depending on how far you get into the boot/install process. The problem here is that the processor starts out in real mode, and that''s the only mode that supports BIOS for the purpose of reading the disk (CD-ROM or otherwise). Since real-mode is restricted to 1MB of RAM, it can be hard to fit everything into that limited amount of memory - so the code-writer will have a few choices:: - switch to protected mode, which means no BIOS -> must have drivers capable of reading the disk by itself. - switching back and forth between real-mode and protected-mode. Not too bad, except it''s a little bit of work to be done each switch, and you can''t (practically) use any code from one side of Prot/Real-mode fence in the other mode. - Use "big-real-mode", which is done by switching to protected mode, setting up a segment register that is not used by BIOS to access "all" memory, and return to real mode. Unfortunately, if the processor doesn''t support real mode virtualization, then the big-real-mode will be a bit of a problem too, since the Virtual 8086 mode that the processor is in for HVM "real-mode" doesn''t support certain operations such as going to protected mode and back again and retaining the segment registers values! This is of course just a GUESS on what the problem is. -- Mats> > I am about to try SUSE. > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Xen Help wrote:> Thanks again for confirming what I thought I had read somewhere, then > you claim it too that it works, so WHY don''t you tell us you secret? > Better than that, I''ll PAY you the XenServer license (I believe it is > $99) so you can share your detailed how to to get CentOS 4-4 to boot > dom0 and domU until it works flawlessly with iptables. You seems to be > an expert so the right initrd ram drives should be easy to do for you as > you obviously have the knowledge I am missing, would you share it we me > and the list? My offer is valid only until the 25th. > > How about that?I did recommend that you supply basic hardware information and see if someone would generate a .config or kernel image for you. -- Christopher G. Stach II _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Mon, 2006-12-18 at 10:52 -0600, Xen Help wrote:> > You are right, it would not be a viable business model and I always pay > for these services, thank you for confirming it. > I do not know how they could make money if the open source version would > work, that makes a lot of sense. >What, exactly are you implying? While you are having issues getting things working, I have over (now) 400+ servers happily in production all using Xen, most of them owned by some of the larger hosting companies in the US. Remember that Fedora , *at best* is an experimental OS, updates frequently and is prone to breakage in its normal non virtualized state. You may consider using a slightly more stable platform rather than pointing the finger at Xen. Debian-ish OS''s may be easier for you to manage.> Again right, except for the thinking and crying part as I follow the > instructions only, remember I made it work for 2 years and now all > updates are not working anymore, obviously something has changed, when > you rpm -Fvh packages and it breaks things, where are you forced to go > when the list cannot or will not help? Are you working for Xensource? > Its true your comment about that it would not be a good business model > if people could simply install it and work.Many people do simply install it and it works. Again, what exactly are you implying? If you want to imply Xen is "baitware" then do it but you better have a Beowulf backing your mail server, as you will have effectively pissed off anyone reading this list. You''re bordering on it now. Xen is free. The lists supporting it are free, you''re using a free OS, I don''t quite get what your problem is. With the overtone you are projecting, however, I''m having an easy time understanding why you aren''t successful finding help on the lists.> I never used Vmware, but my IT friends are selling it to me as bad as I > use to sell them the beauty of Xen, don''t get me wrong (as you seems to > have) if I decide to switch it would not be by choice. Is Xen source > offering the service you describe above? If yes that might be why I > would rather stick to open source. > > You cannot be everything and yes I am no kernel expert even if I do and > patch all my linux kernels (before Xen) without much problems, I must > admit the Xen source one is tricky, but you are here to sell or maybe to > help us all, aren''t you? >Nobody is trying to sell you anything, again, please explain exactly what you are implying.> > > > BTW, iptables, CentOS 4.4, and recent domU kernels work _fine_ together. > > Thanks again for confirming what I thought I had read somewhere, then > you claim it too that it works, so WHY don''t you tell us you secret? > Better than that, I''ll PAY you the XenServer license (I believe it is > $99) so you can share your detailed how to to get CentOS 4-4 to boot > dom0 and domU until it works flawlessly with iptables. You seems to be > an expert so the right initrd ram drives should be easy to do for you as > you obviously have the knowledge I am missing, would you share it we me > and the list? My offer is valid only until the 25th. > > How about that?Can you refrain from insulting people? You can''t fix everything by throwing money at it. Your ''how about that'' attitude is an insult to everyone here who gives their time to help people get the most out of Xen. People here don''t offer help to try to ''seed'' future monetary reward, they do it because they enjoy doing it. Is this jab at XenSource, or the Xen community? Again you''re really on thin ice either way you answer. The attitude is pedantic, condescending and given your (lack of) experience is like a schoolkid mouthing off to a teacher trying to help them. If you hope to get their [the list] help, you may want to look at your part of making the experience enjoyable. I seldom chirp in and the last thing I like to do is ''fan flames'' but in this (rare) instance I feel compelled. You make me remember a quote from a movie : "I tried to see things from your perspective, there simply was not enough room for two heads up your a$$". I tried to find something positive in all of your posts. I couldn''t , and not from lack of effort. Be positive, be productive, be proactive or be someone else''s problem :) Xen was not built so you can offer license free VPS''s to the world, please stop acting as if it was or go buy a copy of Virtuozzo. Best, -Tim _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Christopher G. Stach II wrote:> Xen Help wrote: > >> Henning Sprang wrote: >> >>> On 12/17/06, Xen Help <steven@savetimehosting.net> wrote: >>> >>>> Hi, >>>> >>>> Does anyone knows how to have modules installed when compiling and >>>> installing Xen as the README file is incomplete about it. >>>> I cannot simply run make module_install somwhow. >>>> >>> What do you mean with "i cannot run it somehow?" (if nor just the >>> senetences you wrote after this, which mean, you can run it, but it >>> doesn''t have the effect you where hoping for) >>> >> Well what I meant is that the "xen recommended way" to run (or build) >> with only one kernel for both dom0 and domU will not boot at all on >> CentOs4-4, I spent days on it without any hope of solving the issue with >> the list''s help only, while I discovered that the compiled dom0 and dumU >> version would boot, the only problem remaining is having the right >> modules installed in /lib/modules/ for iptables, they do not show up, >> see the compared listing. >> >> I cannot get the modules compiled and installed into the right directory. >> >> I believe the iptables modules for latest Xen are not compatible with >> CentOs 4-4, maybe with CentOs 4-3. >> Is there any published data about Xen compatibility with the distros >> versions? I mean they upgrade in each new version Glibc and Gcc so this >> seems to be a major consideration to anyone wanting to keep system >> updated and secured? >> >> The 2.6.16.29-xen0 version below do not have iptables modules installed. >> >> total 48K >> drwxr-xr-x 3 root root 4.0K Dec 17 16:54 2.6.16.29-xen >> drwxr-xr-x 8 root root 4.0K Dec 15 11:04 . >> drwxr-xr-x 3 root root 4.0K Dec 14 21:31 2.6.16.29-xenU >> drwxr-xr-x 11 root root 4.0K Dec 14 21:20 .. >> drwxr-xr-x 3 root root 4.0K Dec 14 21:20 2.6.16.29-xen0 >> drwxr-xr-x 3 root root 4.0K Dec 14 15:36 2.6.9-42.0.3.EL >> >> I will make a few more test tonight. I also tried with the newest >> XenExpress, BUT unfortunately I ran into same kind of problems but with >> domU and no support at all unless I pay some bucks, which is not what I >> think about open source. This is very very bad. On this version we do >> not know much about it''s original OS, it uses LVM BUT the /dev/hdx >> /dev/sdx are formated in Linux 8e instead of LVM which is kind of >> strange, also when I copy over existing CentOS4-4 domU which are running >> fine on old servers, it gives very little error messages but do not run >> and the doc does define what importing a server means (must be the >> server config file from what I understand), so I am back to square one. >> >> Because we have production servers we will have to switch to Vmware >> which seems better documented if we cannot find a decent solution before >> the end of the year, but it is sad as I was having fun with Xen over >> the last 2 years and invested a lot of time in it, it just became >> impossible to manage. >> >> I believe part of the problem is the fact that Xen became somehow a >> closed source system and that the fact we cannot get it up and running >> as one would expect is a planned decision, the lack of information about >> the exact requirements is an indication of the direction this project is >> going. If nobody can find out which version of libraries are compatible >> with any given released version of Xen, you imagine how hard update >> decisions becomes, which in my opinion is the very definition of >> unmanageable. The bad thing is the considerable waste of time to try to >> guess things. >> >> If someone at XenSource is reading, you are about to lose a potential >> client as I am about to switch to another virtualization technology >> soon. We must have spent over 120 hours since the first broken version >> of Xen under FC5 in August and we tried really hard to keep our >> production servers afloat with Xen, BUT now we are stuck with old >> version we cannot upgrade, which is a lot of stress we would rather not >> have. All distro we tried were broken somewhere, as well as all binaries >> and compiling from source is just a nightmare of guessing and trial and >> error tests. Reading the list we see people have all the same problems. >> >> We had hopes from the newest XenExpress but it did not help (the Java >> management interface is cute though) , I feel Xen is becoming more and >> more Windozed which is not exactly what we are interested in. I hope Xen >> will improve, BUT now for us it is a huge management problem and a >> serious technological constraint. Switching to Vmware becomes more and >> more of a necessity than a happy choice. >> >> > > If you''re having trouble building kernels and booting Linux distros of > all sorts, you''re in over your head. You''re only using the unsupported > code, so of course you wouldn''t get much help from XenSource. What kind > of business model would that be? >You are right, it would not be a viable business model and I always pay for these services, thank you for confirming it. I do not know how they could make money if the open source version would work, that makes a lot of sense. > > Your crying for help, not providing useful information, taking > recommendations, expecting things to work the way you think they work, > or trying setups that _do_ work as recommendations to test is only > cluttering the list and frustrating you. Frankly, I doubt anyone would > want to bend over backwards to keep the interest of a potential client > from hell. Again right, except for the thinking and crying part as I follow the instructions only, remember I made it work for 2 years and now all updates are not working anymore, obviously something has changed, when you rpm -Fvh packages and it breaks things, where are you forced to go when the list cannot or will not help? Are you working for Xensource? Its true your comment about that it would not be a good business model if people could simply install it and work. > > Stick with VMware, buy a shrink wrapped commercially supported Xen-based > product with consultants who will hold your hand while you point and > click, or stop messing around and cooperate with the community (after > you learn how to patch, configure, and compile a kernel on your own.) I never used Vmware, but my IT friends are selling it to me as bad as I use to sell them the beauty of Xen, don''t get me wrong (as you seems to have) if I decide to switch it would not be by choice. Is Xen source offering the service you describe above? If yes that might be why I would rather stick to open source. You cannot be everything and yes I am no kernel expert even if I do and patch all my linux kernels (before Xen) without much problems, I must admit the Xen source one is tricky, but you are here to sell or maybe to help us all, aren''t you? > > BTW, iptables, CentOS 4.4, and recent domU kernels work _fine_ together. Thanks again for confirming what I thought I had read somewhere, then you claim it too that it works, so WHY don''t you tell us you secret? Better than that, I''ll PAY you the XenServer license (I believe it is $99) so you can share your detailed how to to get CentOS 4-4 to boot dom0 and domU until it works flawlessly with iptables. You seems to be an expert so the right initrd ram drives should be easy to do for you as you obviously have the knowledge I am missing, would you share it we me and the list? My offer is valid only until the 25th. How about that?> Your crying for help, not providing useful information, taking > recommendations, expecting things to work the way you think they work, > or trying setups that _do_ work as recommendations to test is only > cluttering the list and frustrating you. Frankly, I doubt anyone would > want to bend over backwards to keep the interest of a potential client > from hell. > > Stick with VMware, buy a shrink wrapped commercially supported Xen-based > product with consultants who will hold your hand while you point and > click, or stop messing around and cooperate with the community (after > you learn how to patch, configure, and compile a kernel on your own.) > > BTW, iptables, CentOS 4.4, and recent domU kernels work _fine_ together. > >-- Virtual Space International Inc. Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 -------------------------------------------------------------- Internet Is Here To Stay, Make Sure Your Business Is! -------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
I am trying to boot off a floppy. The problem is that the HMVLoader DomU does not recognize the floppy. It is certainly in the way I have specified the export of the floppy image. I have tried a few variations. disk = [ ''file:/var/iso/ubuntu-boot.img,fd0,r'',''phy:/dev/sdb7,hda,w'', ''phy:/dev/hdc,hdc:cdrom,r''] disk = [ ''file:/var/iso/ubuntu-boot.img,fd,r'',''phy:/dev/sdb7,hda,w'', ''phy:/dev/hdc,hdc:cdrom,r''] disk [ ''file:/var/iso/ubuntu-boot.img,fd0:floppy,r'',''phy:/dev/sdb7,hda,w'', ''phy:/dev/hdc,hdc:cdrom,r''] disk [ ''file:/var/iso/ubuntu-boot.img,fda:floppy,r'',''phy:/dev/sdb7,hda,w'', ''phy:/dev/hdc,hdc:cdrom,r''] Unfortunately, I could not find the floppy specification documents. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Christopher G. Stach II
2006-Dec-18 17:53 UTC
Re: [Xen-users] Exporting floppy image as floppy.
Edward Ing wrote:> I am trying to boot off a floppy. The problem is that the HMVLoader DomU > does not recognize the floppy. > > It is certainly in the way I have specified the export of the floppy > image. > > I have tried a few variations. > > disk = [ ''file:/var/iso/ubuntu-boot.img,fd0,r'',''phy:/dev/sdb7,hda,w'', > ''phy:/dev/hdc,hdc:cdrom,r''] > disk = [ ''file:/var/iso/ubuntu-boot.img,fd,r'',''phy:/dev/sdb7,hda,w'', > ''phy:/dev/hdc,hdc:cdrom,r''] > > > disk > [ ''file:/var/iso/ubuntu-boot.img,fd0:floppy,r'',''phy:/dev/sdb7,hda,w'', > ''phy:/dev/hdc,hdc:cdrom,r''] > > > disk > [ ''file:/var/iso/ubuntu-boot.img,fda:floppy,r'',''phy:/dev/sdb7,hda,w'', > ''phy:/dev/hdc,hdc:cdrom,r''] > > > > Unfortunately, I could not find the floppy specification documents. > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-usersI have never tried, but I would think that ''file:/var/iso/ubuntu-boot.img,fd:floppy,r'' would be more appropriate since it''s a disk image and not a partition. -- Christopher G. Stach II _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Christopher G. Stach II
2006-Dec-18 17:55 UTC
Re: [Xen-users] Exporting floppy image as floppy.
Christopher G. Stach II wrote:> I have never tried, but I would think that > ''file:/var/iso/ubuntu-boot.img,fd:floppy,r'' would be more appropriate > since it''s a disk image and not a partition.Sorry, that made no sense. :) Why not boot from a CD image, instead? -- Christopher G. Stach II _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Tim Post wrote:> On Mon, 2006-12-18 at 10:52 -0600, Xen Help wrote: > > >> You are right, it would not be a viable business model and I always pay >> for these services, thank you for confirming it. >> I do not know how they could make money if the open source version would >> work, that makes a lot of sense. >> >> > > What, exactly are you implying? While you are having issues getting > things working, I have over (now) 400+ servers happily in production all > using Xen, most of them owned by some of the larger hosting companies in > the US. > > Remember that Fedora , *at best* is an experimental OS, updates > frequently and is prone to breakage in its normal non virtualized state. > > You may consider using a slightly more stable platform rather than > pointing the finger at Xen. Debian-ish OS''s may be easier for you to > manage. > > >> Again right, except for the thinking and crying part as I follow the >> instructions only, remember I made it work for 2 years and now all >> updates are not working anymore, obviously something has changed, when >> you rpm -Fvh packages and it breaks things, where are you forced to go >> when the list cannot or will not help? Are you working for Xensource? >> Its true your comment about that it would not be a good business model >> if people could simply install it and work. >> > > Many people do simply install it and it works. Again, what exactly are > you implying? If you want to imply Xen is "baitware" then do it but you > better have a Beowulf backing your mail server, as you will have > effectively pissed off anyone reading this list. You''re bordering on it > now. > > Xen is free. The lists supporting it are free, you''re using a free OS, I > don''t quite get what your problem is. With the overtone you are > projecting, however, I''m having an easy time understanding why you > aren''t successful finding help on the lists. > > > >> I never used Vmware, but my IT friends are selling it to me as bad as I >> use to sell them the beauty of Xen, don''t get me wrong (as you seems to >> have) if I decide to switch it would not be by choice. Is Xen source >> offering the service you describe above? If yes that might be why I >> would rather stick to open source. >> >> You cannot be everything and yes I am no kernel expert even if I do and >> patch all my linux kernels (before Xen) without much problems, I must >> admit the Xen source one is tricky, but you are here to sell or maybe to >> help us all, aren''t you? >> >> > > Nobody is trying to sell you anything, again, please explain exactly > what you are implying. > > >> > >> > BTW, iptables, CentOS 4.4, and recent domU kernels work _fine_ together. >> >> Thanks again for confirming what I thought I had read somewhere, then >> you claim it too that it works, so WHY don''t you tell us you secret? >> Better than that, I''ll PAY you the XenServer license (I believe it is >> $99) so you can share your detailed how to to get CentOS 4-4 to boot >> dom0 and domU until it works flawlessly with iptables. You seems to be >> an expert so the right initrd ram drives should be easy to do for you as >> you obviously have the knowledge I am missing, would you share it we me >> and the list? My offer is valid only until the 25th. >> >> How about that? >> > > Can you refrain from insulting people? You can''t fix everything by > throwing money at it. Your ''how about that'' attitude is an insult to > everyone here who gives their time to help people get the most out of > Xen. People here don''t offer help to try to ''seed'' future monetary > reward, they do it because they enjoy doing it. Is this jab at > XenSource, or the Xen community? Again you''re really on thin ice either > way you answer. > > The attitude is pedantic, condescending and given your (lack of) > experience is like a schoolkid mouthing off to a teacher trying to help > them. > > If you hope to get their [the list] help, you may want to look at your > part of making the experience enjoyable. > > I seldom chirp in and the last thing I like to do is ''fan flames'' but in > this (rare) instance I feel compelled. > > You make me remember a quote from a movie : > > "I tried to see things from your perspective, there simply was not > enough room for two heads up your a$$". > > I tried to find something positive in all of your posts. I couldn''t , > and not from lack of effort. > > Be positive, be productive, be proactive or be someone else''s problem :) > Xen was not built so you can offer license free VPS''s to the world, > please stop acting as if it was or go buy a copy of Virtuozzo. >Your opinions is yours only. My sincere apologies if anyone on this list has been or felt insulted by my messages, it is not and was not my intentions. I try not to be as described BUT words can and are interpreted at an individual level and it seems to have aroused your anger. I disagree however about _all_ my postings being or sounding like the description you provide which is not how I am, I have much respect for every open source developpers. I very much prefer Xen over any other technology, I might now feel the pressure and frustration of my unanswered questions, but this is MY problem. I will try not to share anymore any of my team''s problems with Xen in any colourful ways. Please do accept my apologies, you and any and all other members which I might have offended. ++> Best, > -Tim > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > >-- Virtual Space International Inc. Steven Dugway USA 206-734-HOST Canada 514-939-HOST (4678) ext 5 -------------------------------------------------------------- Internet Is Here To Stay, Make Sure Your Business Is! -------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Xen Help wrote:> Hi, > > Does anyone knows how to have modules installed when compiling and > installing Xen as the README file is incomplete about it. > I cannot simply run make module_install somwhow. I did compile the > three flavors (-xen -xen0 -xenU) with iptables options BUT the modules > are never installed. I am on CentOS 4-4If you''re unfamiliar with kernel installation, I urge you to install the RHEL kernel RPM''s, and to review the SRPM to see how to compile and install them. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Mon, 18 Dec 2006, Nico Kadel-Garcia wrote:> Xen Help wrote: > > Hi, > > > > Does anyone knows how to have modules installed when compiling and > > installing Xen as the README file is incomplete about it. > > I cannot simply run make module_install somwhow. I did compile the three > > flavors (-xen -xen0 -xenU) with iptables options BUT the modules are never > > installed. I am on CentOS 4-4if you cd in to the top level xen source directory and type either make install or make kernels, the kernels are built and the modules _are_ installed... (obviously they aren''t installed into the domU filesystems, you''ll need to copy/tar/rsync /lib/modules/2.6.16-xenU/ to them... for that reason I prefer to build in the options I''m going to use. ) The make file has a pretty good help target... (see below)> If you''re unfamiliar with kernel installation, I urge you to install the > RHEL kernel RPM''s, and to review the SRPM to see how to compile and > install them.not sure how applicable that is. Looking at things is never a bad idea, but distribution specific RPMs are usually a dog''s breakfast of extra patches. [root@xen1 ~]# cd /usr/src/xen-3.0.2-2/ [root@xen1 /usr/src/xen-3.0.2-2]# make help Installation targets: install - build and install everything install-xen - build and install the Xen hypervisor install-tools - build and install the control tools install-kernels - build and install guest kernels install-docs - build and install user documentation Building targets: dist - build and install everything into local dist directory world - clean everything, delete guest kernel build trees then make dist xen - build and install Xen hypervisor tools - build and install tools kernels - build and install guest kernels kbuild - synonym for make kernels docs - build and install user documentation dev-docs - build developer-only documentation Cleaning targets: clean - clean the Xen, tools and docs (but not guest kernel) trees <snip> _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi, On 12/18/06, Xen Help <steven@savetimehosting.net> wrote:> [...] > Please do accept my apologies, you and any and all other members which I > might have offended.No problem. I also think it can easily happen when I am trying to get the one or the other thing done and am completely desperate and it''s late, I write postings that sound a bit offensive, or stupid (don''t know which is worse :) ). One starts to yell at the people representing the piece of code that is misbehaving for you. As alsready pointed out, the problem is here we are a community of people doing it for free - with commercial software it''s people paid for it. They usually can''t help you any better when you find a deep or hard problem, but they just listen you yelling and cash their support checks :) whereas the community is not happy to hear offenses and stuff... As you are running Xen for a long while, you must have quite some experience in getting less well documented systems to work at shell level with kernel tinkering included. So you seem to have really come into a strange problem and maybe are desperate, which is understandable. As I said, maybe try another distribution as base, or start completely from scratch with a fresh centOS 4.4 install, following excatly some howto available outside. Then see what''s going wrong again. And try a new thread describing exactly what you tried and what the effects are. That often helps (but maybe you already tried that). _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users