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Message #01604
[Bug 1393842] Re: libvirt does not grant qemu-guest-agent channel perms
Hi,
no, thanks, actually since this fix patches virt-aa-helper itself, just
creating a new vm after the upgrade should have sufficed. No reboot
should have been needed. However trying to start a pre-existing vm that
previously failed would not work, as the policy needs to be re-
generated.
Looking at your error message, the filename doesn't seem to match what
we expect in the patch. The patch uses "domain-$(domain-name)", whereas
the log says it was trying to use
var/lib/libvirt/qemu/channel/target/centos7.0.org.qemu.guest_agent.0.
Still perplexing that it did work for me. Perhaps adding
"/var/lib/libvirt/qemu/channel/target/${domain-name}**" to the whitelist
in the same place in the same patch would fix everyone and still be
safe.
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https://bugs.launchpad.net/bugs/1393842
Title:
libvirt does not grant qemu-guest-agent channel perms
Status in libvirt package in Ubuntu:
Fix Released
Status in libvirt source package in Trusty:
Fix Committed
Bug description:
=======================================
1. Impact: cannot create a default RHEL7 vm in virt-manager
2. fix: allow use of qemu-guest-agent channel
3. test case: see in description below. Create a VM in virt-manager specifying
Linux os and RHEL7.
4. Regression potential: there should be none. We are only adding an
apparmor permission for unix sockets which libvirt creates when needed
for kvm vms.
=======================================
Create a new VM, choose Linux for OS type and Red Hat Enterprise Linux
7 (or later) for Version. Proceed through the wizard leaving all other
options unchanged. On clicking Finish, the following error is
displayed:
Unable to complete install: 'internal error: process exited while connecting to monitor: 2014-11-18T16:00:11.802430Z qemu-system-x86_64: -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/rhel7.org.qemu.guest_agent.0,server,nowait: Failed to bind socket: No such file or directory
2014-11-18T16:00:11.802483Z qemu-system-x86_64: -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/rhel7.org.qemu.guest_agent.0,server,nowait: chardev: opening backend "socket" failed
'
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 91, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/create.py", line 1820, in do_install
guest.start_install(meter=meter)
File "/usr/share/virt-manager/virtinst/guest.py", line 403, in start_install
noboot)
File "/usr/share/virt-manager/virtinst/guest.py", line 467, in _create_guest
dom = self.conn.createLinux(start_xml or final_xml, 0)
File "/usr/lib/python2.7/dist-packages/libvirt.py", line 3398, in createLinux
if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self)
libvirtError: internal error: process exited while connecting to monitor: 2014-11-18T16:00:11.802430Z qemu-system-x86_64: -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/rhel7.org.qemu.guest_agent.0,server,nowait: Failed to bind socket: No such file or directory
2014-11-18T16:00:11.802483Z qemu-system-x86_64: -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/rhel7.org.qemu.guest_agent.0,server,nowait: chardev: opening backend "socket" failed
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: virt-manager 1:1.0.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
Uname: Linux 3.16.0-24-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Nov 18 15:55:59 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-07 (11 days ago)
InstallationMedia: Kubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
PackageArchitecture: all
SourcePackage: virt-manager
UpgradeStatus: No upgrade log present (probably fresh install)
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