Apparmo="DENIED" for CUPS with HP B010

[joneall]

Don't know what happened. After having to unplug my printer to move it upstairs during painting downstairs, when I try to ue it now, all the files sent to it are held. If I unplug it, then plug it in again, dmesg tells me:

[19983.343789] type=1400 audit(1339064275.281:17): apparmor="DENIED" operation="file_lock" parent=1 profile="/usr/sbin/cupsd" name="/run/utmp" pid=955 comm="cupsd" requested_mask="k" denied_mask="k" fsuid=0 ouid=0

Is apparmor something new? Why doesn't it let my printer print?

Curiously, the printer is recognized by the system and I can, for instance, send it a test file to print from System Settings, but the file is held. But lsusb does not see it:

$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 004 Device 002: ID 046d:c50e Logitech, Inc. Cordless Mouse Receiver

[oshunluvr]

Apparmor isn't new but you certainly can remove it. Many (most) of us do...

[joneall]

Apparmor isn't new but you certainly can remove it. Many (most) of us do...

Will everything keep (start) working if I do?

By apt-get purge apparmor?

Thanks.

[joneall]

Uh, I just discovered that I had not plugged the USB cable into the back of the computer.

No probem now.

Shame on me. A thousand pardons.

[oshunluvr]

Lol, I hate when I do that!

Apparmor is the first thing I un-install when I do a new installation. I just don't have the security concerns required to need that level of protection.

[SteveRiley]

To remove Apparmor, it's more than just uninstalling the package. You first have to stop the policy engine and also remove the Upstart symlinks.

sudo service apparmor teardown
sudo update-rc.d -f apparmor remove
sudo apt-get purge apparmor
sudo rm -rfv /etc/apparmor /etc/apparmor.d