# Testing with more snapshots
inaddy@(kvm02):~$ sudo qemu-img info --backing-chain
/var/lib/libvirt/images/guest.1487879587
image: /var/lib/libvirt/images/guest.1487879587
file format: qcow2
virtual size: 30G (32212254720 bytes)
disk size: 3.0M
cluster_size: 65536
backing file: /var/lib/libvirt/images/guest.1487877813
backing file format: qcow2
Format specific information:
compat: 1.1
lazy refcounts: false
image: /var/lib/libvirt/images/guest.1487877813
file format: qcow2
virtual size: 30G (32212254720 bytes)
disk size: 2.9M
cluster_size: 65536
backing file: /var/lib/libvirt/images/guest.1487875788
backing file format: qcow2
Format specific information:
compat: 1.1
lazy refcounts: false
image: /var/lib/libvirt/images/guest.1487875788
file format: qcow2
virtual size: 30G (32212254720 bytes)
disk size: 3.0M
cluster_size: 65536
backing file: /var/lib/libvirt/images/guest.qcow2
backing file format: qcow2
Format specific information:
compat: 1.1
lazy refcounts: false
image: /var/lib/libvirt/images/guest.qcow2
file format: qcow2
virtual size: 30G (32212254720 bytes)
disk size: 5.0G
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: false
inaddy@(kvm02):~$ virsh blockcommit --domain=guest
--path=/var/lib/libvirt/images/guest.1487879587 --base
/var/lib/libvirt/images/guest.qcow2 --top
/var/lib/libvirt/images/guest.1487875788 --wait --verbose
Block Commit: [100 %]
Commit complete
Guest is still running:
inaddy@(guest):~$ uptime
19:59:05 up 1:09, 1 user, load average: 0.00, 0.01, 0.05
inaddy@(kvm02):~$ sudo qemu-img info --backing-chain
/var/lib/libvirt/images/guest.1487879587
image: /var/lib/libvirt/images/guest.1487879587
file format: qcow2
virtual size: 30G (32212254720 bytes)
disk size: 3.5M
cluster_size: 65536
backing file: /var/lib/libvirt/images/guest.1487877813
backing file format: qcow2
Format specific information:
compat: 1.1
lazy refcounts: false
image: /var/lib/libvirt/images/guest.1487877813
file format: qcow2
virtual size: 30G (32212254720 bytes)
disk size: 2.9M
cluster_size: 65536
backing file: /var/lib/libvirt/images/guest.qcow2
backing file format: qcow2
Format specific information:
compat: 1.1
lazy refcounts: false
image: /var/lib/libvirt/images/guest.qcow2
file format: qcow2
virtual size: 30G (32212254720 bytes)
disk size: 5.0G
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: false
Merge was done.
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https://bugs.launchpad.net/bugs/1317491
Title:
virsh blockcommit hangs at 100%
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