Sorry my mistake again. I don't often hit the low level interface. The
echo command needs a -n, we are echoing the profile name to remove
directly into the apparmor kernel interface.
lets do this
sudo aa-status
ps -Z `pidof cupsd`
sudo bash -c "echo -n /usr/sbin/cupsd
>/sys/kernel/security/apparmor/.remove"
sudo bash -c "echo -n /usr/lib/cups/backend/cups-pdf
>/sys/kernel/security/apparmor/.remove"
sudo aa-status
ps -Z `pidof cupsd`
sudo restart cups
ps -Z `pidof cupsd`
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https://bugs.launchpad.net/bugs/1187970
Title:
apparmor prevents custom printer driver from executing
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