Andre Goree
2018-Apr-30 15:48 UTC
[libvirt-users] Unable to detach disk using 'virsh detach-disk'
I'm unable to detach a disk from a Windows guest using the 'virsh
detach-disk' command.
Even though 'domblklist' shows the disk attached, and on the FIRST
iteration, it says the command "completed successfully,"
'domblklist
will still show the disk attached and subsequent 'detach-disk' commands
fail with 'no disk found whose source path or target is ${location}'
~ # virsh domblklist 31907-1063435
Target Source
------------------------------------------------
vda ${concatenated}/31907-1063435/2018-04-28-190529
vdb
${concatenated}/31907-67863/2018-03-21-033216.2018-04-28-190529
~ # virsh detach-disk --domain 31907-1063435
/var/lib/libvirt/images/instances/31907-67863/2018-03-21-033216.2018-04-28-190529
--persistent
error: No disk found whose source path or target is
/var/lib/libvirt/images/instances/31907-67863/2018-03-21-033216.2018-04-28-190529
Any ideas as to why this happens?
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Andre Goree
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Michal Privoznik
2018-May-09 13:26 UTC
Re: [libvirt-users] Unable to detach disk using 'virsh detach-disk'
On 04/30/2018 05:48 PM, Andre Goree wrote:> I'm unable to detach a disk from a Windows guest using the 'virsh > detach-disk' command. > > Even though 'domblklist' shows the disk attached, and on the FIRST > iteration, it says the command "completed successfully," 'domblklist > will still show the disk attached and subsequent 'detach-disk' commands > fail with 'no disk found whose source path or target is ${location}' > > > > ~ # virsh domblklist 31907-1063435 > Target Source > ------------------------------------------------ > vda ${concatenated}/31907-1063435/2018-04-28-190529 > vdb ${concatenated}/31907-67863/2018-03-21-033216.2018-04-28-190529 > > ~ # virsh detach-disk --domain 31907-1063435 > /var/lib/libvirt/images/instances/31907-67863/2018-03-21-033216.2018-04-28-190529 > --persistent > error: No disk found whose source path or target is > /var/lib/libvirt/images/instances/31907-67863/2018-03-21-033216.2018-04-28-190529 > > > > > Any ideas as to why this happens? > >Sure. There's a difference between live and config XML https://wiki.libvirt.org/page/VM_lifecycle detach-disk --persistent removes disk from config XML and domblklist prints out disks from current state of domain (i.e. if it's running it prints out disks from live XML). Michal