I tried adding the five lines you posted on the bottom of /etc/apparmor.d/abstractions/libvirt-qemu
There are no more 'apparmor="DENIED"' entries. But the disk still bounced back. I see entries: [ 673.188482] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 673.435419] sd 0:0:0:0: [sda] Synchronize Cache(10) failed: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK I also noticed that `sudo apparmor_parser -r /etc/apparmor.d/abstractions/libvirt-qemu` complains that AppArmor parser error for /etc/apparmor.d/abstractions/libvirt-qemu in /etc/apparmor.d/abstractions/base at line 23: syntax error, unexpected TOK_MODE, expecting TOK_OPEN , but it seems the rules took effect anyway. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1814061 Title: Adding USB host device, USB drive to guest VM fails, mounts drive in Nautilus instead To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1814061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
