Ubuntu
apparmor package

  1. Bug #1784499
  2. Comment #10

Comment 10 for bug 1784499

Revision history for this message
rikka (rikka0w0) wrote :

This bug still exists in the latest Ubuntu 22.04 Live image. When I netboot the image and apply another lower layer (NFS-based), I still get "nfs rpc call returned error 13" in my dmesg. Intensive google searching lead me to this thread. This bug causes the Firefox (provided via snap) not functional.

My kernel args look like this:
initrd=initrd nfsroot=${nfs-linux-boot}/kubuntu2204 netboot=nfs boot=casper ip=dhcp mitigations=off utc=no ignore_uuid

My solution was to append "apparmor=0" to the kernel args to fully disable the AppArmor. Now snap and firefox work again. I believe this is not the best solution.