[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
This bug has been fixed now https://code.launchpad.net/~tinco- andringa/vmbuilder/vmbuilder/+merge/242076 has been merged. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
** Changed in: vm-builder (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
What has Ubuntu Lucid to do with this bug? Isn't it in any version of Ubuntu that ships with this software? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
lucid has seen the end of its life and is no longer receiving any updates. Marking the lucid task for this ticket as Won't Fix. ** Changed in: vm-builder (Ubuntu Lucid) Status: Confirmed = Won't Fix -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
** Branch linked: lp:tinco-vm-builder/virtio-uuid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
Is anyone watching this issue? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
Hi guys, I'm stuck on this, so I've made a patch. I'm not sure how to test it, perhaps someone give me some pointers? I tried out this bzr thing and it's super crazy. I can't find out how to fork and submit a pull request. I browsed through the commands of bzr and there was some launchpad stuff but none of it worked, either 500 exceptions or plain nothing happens. Then I found out I can't even few the patch after it was committed, but I could do send with -o to a file, so that's what I'm attaching. Sorry for whining :) hopefully we can work out if this patch is going to fix this issue. ** Attachment added: patch https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+attachment/4258320/+files/patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
The attachment patch seems to be a patch. If it isn't, please remove the patch flag from the attachment, remove the patch tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team. [This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
Yeah, UUID seems like a better idea. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/517067 Title: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/517067/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
I agree with Paul Sladen -- if this used the UUID mechanism it would be simpler to change. That's also what most of the kvm docs indicate. So why isn't vmbuilder using it? -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
** Also affects: vm-builder (Ubuntu Lucid) Importance: Medium Status: Confirmed ** Changed in: vm-builder (Ubuntu Lucid) Milestone: ubuntu-10.04 = None -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
Surely the problem here, is that for the standard method of mount-by-
UUID is being overridden?
If mount-by-UUID is in use then it doesn't matter whether a device shows
up as /dev/{sd,hd,hv}*
--
Using virtio for block devices makes disks and partitions disappear in KVM/QEMU
(using vmbuilder and libvirt)
https://bugs.launchpad.net/bugs/517067
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[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
** Changed in: vm-builder (Ubuntu) Milestone: None = ubuntu-10.04 -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
You are right of course, /etc/fstab on the guest contains /dev/sdXY entries. These get generated by /usr/share/pyshared/VMBuilder/plugins/ubuntu/feisty.py as you mentioned. After changing all /dev/sdXY to /dev/vdXY I can indeed boot happily :) What threw me off was that QEMU did not (and does not) see these virtio- based drives when booting (see screenshots) and that changing the target device name in the domain definition (target dev='vda' bus='virtio'/ to target dev='sda' bus='virtio'/ and vice versa) does nothing. I suppose this has to do with the snippet of documentation I quoted previously and probably with the fact that the virtio driver is paravirtualized so QEMU doesn't do any of the emulation it would do with IDE- or SCSI-based buses. Should have thought of that earlier. So creating guests in the manner I described in my original post using vmbuilder works after applying your one-line fix to /usr/share/pyshared/VMBuilder/plugins/ubuntu/feisty.py. I am not sure where this bug lies since I am just getting to know the more advanced aspects of libvirt but I suppose vmbuider is to blame. That's understandable given that it is still somewhat young and cannot consider all possible combinations and varieties of libvirt options. Too bad virt-install is mostly useless for quickly creating and deploying guests for testing purposes. I like your solution b.) but doesn't that add yet another level of indirection and complicates guest setup even more? -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
Thanks for the comment, but how do you figure? I did not change anything after the fact, I modified the template used for installation and setup of the guest domain. First, it seems to depend on the bus type whether the virtual disks are at all visible to QEMU, as can be seen from the screenshots. At that point logical device names are of no consequence, yet, because the kernel isn't even booted. Second, it does not matter whether the disks are called vda or hda (the default) in the libvirt domain definition. From the documentation: The dev attribute indicates the logical device name. The actual device name specified is not guaranteed to map to the device name in the guest OS. Treat it as a device ordering hint. This is further supported by the fact that upon switching the bus type to ide the disks are visible both to QEMU and to the booted guest Linux kernel but the logical device name in the domain definition is still vda-based. Third, the logical device name is defined and set early during installation/setup of the guest since it looks at the modified template in /etc/vmbuilder/libvirt. So the installation procedure is aware that disks are named vda in the definition and takes that into account (or should take that into account). It does not matter whether it is hda oder vda there (I tried both, multiple times), /etc/fstab will always have /dev/sdX* set. So I don't think that is the problem here, but I will try again. Thanks for the comment, again! -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libvirt in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
On Fri, 5 Feb 2010, Andreas Ntaflos wrote: So I don't think that is the problem here, but I will try again. Thanks for the comment, again! I think if you look inside your guest image you will see 'sdaX' in /etc/fstab. Disks that are presented to the booted system as virtio will be named 'vdX'. The discs didn't disappear, they're named differently than your /etc/fstab, so they're (correctly) not mounted. mount the guest image loopback, change sd - vd and i think you'll boot happily. Alternatively, i think you can open up './VMBuilder/plugins/ubuntu/feisty.py' and hack in: - disk_prefix = 'sd' + disk_prefix = 'vd' The bug could be considered to be in 1 of 2 places: a.) vmbuilder: its 'install_fstab' routines only ever receive 'sd' for their self.disk_prefix' b.) linux/udev : you could suggest that the vdX devices should be symlinked or other to sdX so that your fstab finds the devices independent of how they're connected. -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libvirt in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
** Attachment added: Domain definition for guest foo, using virtio for block devices http://launchpadlibrarian.net/38748978/foo.xml -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libvirt in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 517067] Re: Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt)
the mountall failed messages fail because there *is* no /dev/sdX* and your /etc/fstab says to mount them. You've changed to /dev/vda* , /etc/fstab will need to be updated. -- Using virtio for block devices makes disks and partitions disappear in KVM/QEMU (using vmbuilder and libvirt) https://bugs.launchpad.net/bugs/517067 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libvirt in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
