Failing for me as wel on trusty when snappshotting a running domain
apparently due to app armour.
virsh # list
Id Name State
----------------------------------------------------
7 jam1 running
virsh # domblklist jam1
Target Source
------------------------------------------------
hda /var/lib/libvirt/images/jam1/tmprK58RK.qcow2
$ sudo qemu-img info /var/lib/libvirt/images/jam1/tmprK58RK.qcow2
image: /var/lib/libvirt/images/jam1/tmprK58RK.qcow2
file format: qcow2
virtual size: 5.0G (5368709120 bytes)
disk size: 613M
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: false
virsh # snapshot-create-as jam1 jam1-A --disk-only --atomic
error: internal error: unable to execute QEMU command 'transaction': Could not
open '/var/lib/libvirt/images/jam1/tmprK58RK.qcow2': Could not open
'/var/lib/libvirt/images/jam1/tmprK58RK.qcow2': Permission denied: Permission
denied
$ ls -al /var/lib/libvirt/images/jam1/tmprK58RK.qcow2
-rw-r--r-- 1 libvirt-qemu kvm 642908160 Jun 24 13:18
/var/lib/libvirt/images/jam1/tmprK58RK.qcow2
/var/log/syslog
Jun 24 13:22:51 bat kernel: [14013.429506] type=1400 audit(1403630571.119:76):
apparmor="STATUS" operation="profile_replace" profile="unconfined"
name="libvirt-dafd2c09-a81d-4ee3-a95c-beb50aecf4e8" pid=17961 c\
omm="apparmor_parser"
Jun 24 13:22:51 bat kernel: [14013.435384] type=1400 audit(1403630571.127:77):
apparmor="DENIED" operation="open"
profile="libvirt-dafd2c09-a81d-4ee3-a95c-beb50aecf4e8"
name="/var/lib/libvirt/images/jam1/tmprK\
58RK.qcow2" pid=15483 comm="qemu-system-x86" requested_mask="r" denied_mask="r"
fsuid=124 ouid=124
Jun 24 13:22:51 bat kernel: [14013.435401] type=1400 audit(1403630571.127:78):
apparmor="DENIED" operation="open"
profile="libvirt-dafd2c09-a81d-4ee3-a95c-beb50aecf4e8"
name="/var/lib/libvirt/images/jam1/tmprK\
58RK.qcow2" pid=15483 comm="qemu-system-x86" requested_mask="r" denied_mask="r"
fsuid=124 ouid=124
Jun 24 13:22:51 bat kernel: [14013.435437] type=1400 audit(1403630571.127:79):
apparmor="DENIED" operation="open"
profile="libvirt-dafd2c09-a81d-4ee3-a95c-beb50aecf4e8"
name="/var/lib/libvirt/images/jam1/tmprK\
58RK.qcow2" pid=15483 comm="qemu-system-x86" requested_mask="r" denied_mask="r"
fsuid=124 ouid=124
Jun 24 13:22:51 bat kernel: [14013.566334] type=1400 audit(1403630571.259:80):
apparmor="STATUS" operation="profile_replace" profile="unconfined"
name="libvirt-dafd2c09-a81d-4ee3-a95c-beb50aecf4e8" pid=17964 c\
omm="apparmor_parser"
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty
$ uname -a
Linux bat 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64
x86_64 x86_64 GNU/Linux
$ virsh --version
1.2.2
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https://bugs.launchpad.net/bugs/1004606
Title:
virsh create-snapshot fails to create external snapshot (blockdev-
snapshot-sync fails in json monitor)
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