similar to: How to configure so as to use the blktap/blktap2 module in XEN

Hi, In most cases we use image files as virtual disks under the full-virtualization situation.On the version 4.1.2 of xen,I do the following command: ############################################################ dd if=/dev/zero of=myraw.img bs=1M seek=8K count=1 #Before the command below I install the operating system in myraw.img qemu-img-xen create -b myraw.img -f qcow2 myqcow1.img 20000M

Hi,  I''m currently stuck with creating VM which cannot boot with disk using blktap2 driver. I''ve been searching nearly a whole week and I couldn''t get a answer. When creating vm with blktap2, it keep shows a error:   libxl: debug: libxl_device.c:200:disk_try_backend: Disk vdev=xvda, backend tap unsuitable because blktap not available.  VM configuration (XML):

Hi, I encounter a problem that has puzzled me for a long time.On a Xen virtualization platform, some VMs ,whose virtual disks are image files ,are running in DomUs.Under this situation ,does the Dom0 cache the pages from the VMs?Does the filesystem in Dom0 see the VMs as general processes? HXK _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Hello, I''m currently trying to understand some problems I had in the past with mixing look-back with blktap(2) for HV and PV domains. I''m stuck reading the source code, so I''d like to get some help from the list. Interrupt me if I got something fundamentally wrong in my understanding so far: 1. With pure-HV the domU gets an emulated IDE (or whatever) disk. The

Distro: debian unstable Xen version: 4.0.0-2 This is the config: #HVM #still no qemu-dm in debian #kernel = "/usr/lib/xen-4.0/boot/hvmloader" #builder = ''hvm'' #memory = 2048 #name = "webserver" #vif = [''bridge=eth0''] #disk = [''tap:tapdisk:aio:/srv/xen/webserver.img,xvda,w'',''phy:/dev/cdrom,xvdb:cdrom,r'']

Hi guys, i''ve just installed xen 4.0. Since always blktapctl has never worked on my dell 1950III. I even posted a bug but so far i can''t use tap:aio or similar. I thought that with version 4 this would work, but it didn''t. I still see syslog errors from blktap version 1.0.0. Today i wanted to try version 2 I found on the xen/tools source folder. I compiled the source

I''m getting this message (subject line) in daemon.log every time I start or restart xend. I''m not sure if this is related to the fact that I cannot boot up my Windows domU from a VHD file. The Windows domU was working fine with Xen 4.0.0 (with 2.6.32.14 dom0 kernel). When I upgraded to Xen 4.0.1-rc4 (with 2.6.32.16 dom0 kernel), I can no long boot the Windows domU from VHD. The

For those wanting to know how to mount filesystems through blktap2 here is how you do it, as I couldn''t find it fully documented. The instructions on the blktap2 readme file are rather out of date. You can mount them under Dom0 like so. e.g. to mount a vhd file, sudo xm block-attach 0 tap2:vhd:/home/xen/xenwin7-persist.vhd xvdb w 0 Now the device should appear under /dev ls

Hi, I''m currently trying xen 4.1.1 with the 3.0.0-rc5 (heard that it now contains the xen code to run as front or back xen domain). Everything seems to run fine, except that I am trying since a few hours to mount a .vhd file in the dom0. What I tried so far: to create a blank vhd file (this is working): host# vhd-util create -n /storage/test.vhd -s 20G Then i try to mount the file

On Tue, Dec 16, 2014 at 10:29:53PM +0200, Pasi K?rkk?inen wrote: > > > > * xend is now disabled by default. You can enable it by running > > chkconfig. xend has been removed from the tree entirely in Xen 4.5, > > so this should (hopefully) serve as a "wake-up-call" for people to > > begin the transition over to xend. > > > > * A lot have

Hi, I''ve been testing Xen 4.0.1 with kernel 2.6.34.5 + http://gentoo-xen-kernel.googlecode.com/files/xen-patches-2.6.34-4.tar.bz2, and one of the things that I noticed immediately is there are two problems with tapdisk and this combination. First, the syntax "disk = [''tap:tapdisk:aio: ..." no longer works. When tested with HVM domU, it boots, but there was no disk

On 09/08/2014 04:59 PM, Chrysostomos Nanakos wrote: > On 2014-09-08 10:07, Thomas Goirand wrote: >> On 09/07/2014 01:44 AM, Chrysostomos Nanakos wrote: >>> dget -x >>> >>> http://mentors.debian.net/debian/pool/main/b/blktap/blktap_2.0.90-3.dsc >> >> Uploaded! Thanks for your contribution to Debian. >> >> Cheers, >> >> Thomas

--------------------------------------------------------------------------- The following patch when applied on top of: libxl: attempt to cleanup tapdisk processes on disk backend destroy. Establishes correct cleanup behavior for blktap devices. This patch implements the release of the backend device before calling for the destruction of the userspace component of the blktap device. Without

On Sat, Sep 26, 2015 at 9:29 PM, Pasi K?rkk?inen <pasik at iki.fi> wrote: > On Sat, Sep 26, 2015 at 09:04:23PM +0300, Pasi K?rkk?inen wrote: >> Hello, >> >> I just upgraded some of my el6xen boxes to latest CentOS 6.7, Xen 4.4.3 and dom0 3.18.17 rpms, and noticed these new problems: >> > > And third issue aswell: > > 3) Creating an HVM guest using

Forwarding to you original patch requested. It works for me. Boris --- On Sun, 7/11/10, eXeC001er <execooler@gmail.com> wrote: From: eXeC001er <execooler@gmail.com> Subject: [Xen-devel] [PATCH] blktap2: blktap2 and pygrub (xen-unstable) To: "Xen-devel" <xen-devel@lists.xensource.com> Date: Sunday, July 11, 2010, 9:18 AM 1. Bug fix for error: "Error: Device

Hi, Currently i''m going through the source codes of tools/blktap2. I need to find-out where blktap2 calls 1. mem_share_nominate() 2. mem_sharing_share_page() functions to do the memory sharing on HVM guests. Can someone please provide me some guidance on blktap2 driver. Thanks, Harshan _______________________________________________ Xen-devel mailing list

On Tue, Sep 29, 2015 at 12:37:25PM +0100, George Dunlap wrote: > On Sat, Sep 26, 2015 at 9:29 PM, Pasi K?rkk?inen <pasik at iki.fi> wrote: > > On Sat, Sep 26, 2015 at 09:04:23PM +0300, Pasi K?rkk?inen wrote: > >> Hello, > >> > >> I just upgraded some of my el6xen boxes to latest CentOS 6.7, Xen 4.4.3 and dom0 3.18.17 rpms, and noticed these new problems:

I''m newbie Xen-4.1.1 I''m trying to boot DomU with the following configuration. Sometime DomU boot, but sometime boot failed I''m not sure what is the problem. I can attach that image with tap-ctl on Dom0. Does anybody advice me about this problem?? Sincerely * Environment OS : Scientific Linux 6.1 x86_64 Kernel : 2.6.32.43

Hello, It seems currently when you "yum update" CentOS 6.6 Xen host you end up getting python-virtinst from c6 base repo: python-virtinst-0.600.0-24.el6.noarch and not from Xen4CentOS repo, because the version there is "older": 0.600.0-19. .. which means the centos/xen-specific patch in python-virtinst is "lost". (default to tap2 instead of tap1, to make blktap2

Hi, I''d like to use the blktap utils from https://github.com/xen-org/blktap because of the mirror feature, as the blktap utils comming with xen does not support this. Could anybody explain why there are two different blktap utils (one in git and one comming with xen source) and how to compile the one from git so that it works with libxl ? Any pointers greatly appreciated ;-) Thanks