Dear all, Actually, I want to create my own test-bed based on xen hypervisor with centos prefered. However, all I have is one desktop (with a good hardware performance). So it possible to have a dual-boot (a linux for daily use and the other for the test-bed) ? Regards -- Jihed M’SELMI http://about.me/jihed.mselmi _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
2012/12/27 Jihed M''selmi <jihed.mselmi@gmail.com>> Dear all, > > Actually, I want to create my own test-bed based on xen hypervisor with > centos prefered. > However, all I have is one desktop (with a good hardware performance). > So it possible to have a dual-boot (a linux for daily use and the other > for the test-bed) ? > > Regards >If the dual-boot is not related to xen. have dual-boot will not be limited to XEN. You have dual-boot with Windows, Linux Desktop, Linux Xen Server, etc. _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
The dual-boot between xen-host and another OS . I think ''from your words'' yes. On Fri, Dec 28, 2012 at 12:15 AM, Flako <subforos@gmail.com> wrote:> > 2012/12/27 Jihed M''selmi <jihed.mselmi@gmail.com> > >> Dear all, >> >> Actually, I want to create my own test-bed based on xen hypervisor with >> centos prefered. >> However, all I have is one desktop (with a good hardware performance). >> So it possible to have a dual-boot (a linux for daily use and the other >> for the test-bed) ? >> >> Regards >> > > > If the dual-boot is not related to xen. have dual-boot will not be > limited to XEN. > You have dual-boot with Windows, Linux Desktop, Linux Xen Server, etc. > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >-- Jihed M’SELMI http://about.me/jihed.mselmi _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
On Thu, Dec 27, 2012 at 10:44 PM, Jihed M''selmi <jihed.mselmi@gmail.com>wrote:> Dear all, > > Actually, I want to create my own test-bed based on xen hypervisor with > centos prefered. > However, all I have is one desktop (with a good hardware performance). > So it possible to have a dual-boot (a linux for daily use and the other > for the test-bed) ? > > Regards > >Yes, of course. Set up independent drive sets for the daily-linux and the test-bed installations, and never the two shall meet. --Andy _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Thanks for you all for this clarification. Let''s start XEN then, Regards Jihed On Fri, Dec 28, 2012 at 12:30 AM, Andrew Finkenstadt <andy@finkenstadt.com>wrote:> On Thu, Dec 27, 2012 at 10:44 PM, Jihed M''selmi <jihed.mselmi@gmail.com>wrote: > >> Dear all, >> >> Actually, I want to create my own test-bed based on xen hypervisor with >> centos prefered. >> However, all I have is one desktop (with a good hardware performance). >> So it possible to have a dual-boot (a linux for daily use and the other >> for the test-bed) ? >> >> Regards >> >> > Yes, of course. > > Set up independent drive sets for the daily-linux and the test-bed > installations, and never the two shall meet. > > --Andy > >-- Jihed M’SELMI http://about.me/jihed.mselmi _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
El 27/12/12 16:44, Jihed M''selmi escribió:> Actually, I want to create my own test-bed based on xen hypervisor with > centos prefered. > However, all I have is one desktop (with a good hardware performance). > So it possible to have a dual-boot (a linux for daily use and the other > for the test-bed) ?Consider your xen hypervisor just as other Linux. Treat as any other multi-boot case. In my opinion, it''s not very comfortable to perform tests while the regular desktop is unavailable (together with your reference notes, bookmarks and mail client). If you are limited to a single computer, two things may be done: - Use nested visualization. As example, Xen hypervisor works great under VirtualBox, as far as you don''t try to run HVM guests. - Use the Dom0 itself as desktop. Not a good idea for production environment, but this is a test, after all. -- Alexandre Kouznetsov
Alexandre Kouznetsov wrote:>In my opinion, it''s not very comfortable to perform tests while the >regular desktop is unavailable (together with your reference notes, >bookmarks and mail client). If you are limited to a single computer, two >things may be done: >- Use nested visualization. As example, Xen hypervisor works great under >VirtualBox, as far as you don''t try to run HVM guests. >- Use the Dom0 itself as desktop. Not a good idea for production >environment, but this is a test, after all.I''d agree with that, but there is a third option. If the OP already has a working Linux install, then it should be possible to just add Xen and dual-boot between native Linux and Linux as Dom0. All this should need is to install a Xen Dom0 capable kernel (if not already capable)* and install Xen. A bridged network setup with the bridge managed by the naive distro tools will work with or without Xen loaded. Selecting environment should be just a matter of picking the Xen or no-Xen option in GrUB at boot time. * IIRC, 2.6 kernels and earlier weren''t Dom0 capable, so pick a "...-xen'' kernel image to install. Kernel 3 onwards has Dom0 baked in. This will also depend on the options your distro used when building kernels.
2012/12/27 Jihed M''selmi <jihed.mselmi@gmail.com>> The dual-boot between xen-host and another OS . I think ''from your words'' > yes. > > > Hi, sorry if it was unclear, just write / speak Spanish. Usetranslate.google to write English and that semantics is lost a bit .. XEN Enjoy :) _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Thank you Guys, for all those clarifications. @Flako, no problem, it''s understandable :) I am just a newbie guy with XEN, I''ll start with xen vbox like Alex proposition...and let''s see how it goes and then I''ll go for the full installation. J On Fri, Dec 28, 2012 at 12:19 PM, Flako <subforos@gmail.com> wrote:> > > 2012/12/27 Jihed M''selmi <jihed.mselmi@gmail.com> > >> The dual-boot between xen-host and another OS . I think ''from your words'' >> yes. >> >> >> Hi, sorry if it was unclear, just write / speak Spanish. Use > translate.google to write English and that semantics is lost a bit .. > > XEN Enjoy :) > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >-- Jihed M’SELMI http://about.me/jihed.mselmi _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
2012/12/27 Alexandre Kouznetsov <alk@ondore.com>> - Use nested visualization. As example, Xen hypervisor works great under > VirtualBox, as far as you don''t try to run HVM guests. >Alexandre, can explain a little better what VirtualBox + Xen From what I read, I understand that you can run the Dom0 within a VBox VM, then run multiple Dumu within VBox VM, This is so? (if that is new for me .. :)) _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Because of the limited capability with vbox, I tried to install xen Dom0 on my running linux (ubuntu 12.04 LTS), like Simion option based on this link: https://help.ubuntu.com/community/Xen . the dom0 was installed but no dual boot was shown at the start up to choose. Any guess ? Rgds J On Sat, Dec 29, 2012 at 12:10 PM, Flako <subforos@gmail.com> wrote:> > > 2012/12/27 Alexandre Kouznetsov <alk@ondore.com> > >> - Use nested visualization. As example, Xen hypervisor works great under >> VirtualBox, as far as you don''t try to run HVM guests. >> > > Alexandre, can explain a little better what VirtualBox + Xen > From what I read, I understand that you can run the Dom0 within a VBox VM, > then run multiple Dumu within VBox VM, > This is so? (if that is new for me .. :)) > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >-- Jihed M’SELMI http://about.me/jihed.mselmi _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
2012/12/29 Jihed M''selmi <jihed.mselmi@gmail.com>> Because of the limited capability with vbox, I tried to install xen Dom0 > on my running linux (ubuntu 12.04 LTS), like Simion option based on this > link: https://help.ubuntu.com/community/Xen . the dom0 was installed but > no dual boot was shown at the start up to choose. > > Any guess ? > > Rgds > J > >If you run ''xm list'' and ''xm info'' you back something? I think you are confused that is dual-boot. For a dual boot, you need two SS.OO installed on the PC. A ''apt-get install xen-hypervisor-amd64'' does not make you a dual boot, just install a program. at most you should have the option to start the "common kernel" and "xen kernel." _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
host : host release : 3.2.0-32-generic version : #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 machine : x86_64 nr_cpus : 4 nr_nodes : 1 cores_per_socket : 2 threads_per_core : 2 cpu_mhz : 3292 hw_caps : bfebfbff:28100800:00000000:00003f40:119ae3bf:00000000:00000001:00000000 virt_caps : hvm total_memory : 10121 free_memory : 983 free_cpus : 0 xen_major : 4 xen_minor : 1 xen_extra : .2 xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 xen_scheduler : credit xen_pagesize : 4096 platform_params : virt_start=0xffff800000000000 xen_changeset : unavailable xen_commandline : placeholder cc_compiler : gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) cc_compile_by : marc.deslaurier cc_compile_domain : ubuntu.com cc_compile_date : Tue Dec 11 16:32:07 UTC 2012 xend_config_format : 4 joe@host:~$ sudo xm list Name ID Mem VCPUs State Time(s) Domain-0 0 9021 4 r----- 2950.2 Yes, this is what I think so but I remember I tried this on centos (yum install xen-hypervisor) and added a new entry in grub.list Do you have any recommended link or books to learn more about it ? Rgds _J On Sat, Dec 29, 2012 at 12:42 PM, Flako <subforos@gmail.com> wrote:> > > > 2012/12/29 Jihed M''selmi <jihed.mselmi@gmail.com> > >> Because of the limited capability with vbox, I tried to install xen Dom0 >> on my running linux (ubuntu 12.04 LTS), like Simion option based on this >> link: https://help.ubuntu.com/community/Xen . the dom0 was installed but >> no dual boot was shown at the start up to choose. >> >> Any guess ? >> >> Rgds >> J >> >> > If you run ''xm list'' and ''xm info'' you back something? > I think you are confused that is dual-boot. > For a dual boot, you need two SS.OO installed on the PC. > A ''apt-get install xen-hypervisor-amd64'' does not make you a dual boot, just > install a program. at most you should have the option to start the "common > kernel" and "xen kernel." > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >-- Jihed M’SELMI http://about.me/jihed.mselmi _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
2012/12/29 Jihed M''selmi <jihed.mselmi@gmail.com>> > Yes, this is what I think so but I remember I tried this on centos (yum > install xen-hypervisor) and added a new entry in grub.list > > Do you have any recommended link or books to learn more about it ? > > Rgds > > _J >you executed ''update-grub''? If after running it does not add the three kernel options (Failsafe, xen, normal) is a problem of ubuntu. You should read and manually edit the grub on google. Saludos. _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Hello. El 29/12/12 05:10, Flako escribió:> 2012/12/27 Alexandre Kouznetsov <alk@ondore.com <mailto:alk@ondore.com>> > - Use nested visualization. As example, Xen hypervisor works great > under VirtualBox, as far as you don''t try to run HVM guests. > > Alexandre, can explain a little better what VirtualBox + Xen > From what I read, I understand that you can run the Dom0 within a VBox > VM, then run multiple Dumu within VBox VM, > This is so? (if that is new for me .. :))Yes, it is pretty straight, just as you describe it. The VM within VirtualBox, running Xen hypervisor, will need plenty of RAM to assign it to DmUs, and only paravirtualization will be available for them, no full virtualization. Greetings.
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