I have the same problem using raw lvm logical volumes as disk on Ubuntu 18.04. When i try to start a vm with virt-manager qemu says Permission denied on device.
The lvm uses device mapper to map the logical volumes so i need to handle devices like brw-rw---- 1 libvirt-qemu kvm 253, 4 mar 17 13:24 /dev/dm-4 After a bunch of failure attempts to start the vm machine, the following steps was successful: I run the aa-logprof (apparmor-utils package) util to update the apparmor profiles using the syslog, and i add the following line in /etc/apparmor.d/abstractions/libvirt-qemu ... /dev/dm* krw, just before the /dev/net/tun rw, line. If the line already exists just replace "rw" with "krw" to permit file lock operations. Now it seems vm runs well again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1677398 Title: Apparmor prevents using storage pools and hostdev networks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1677398/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
