Ubuntu
udev package

  1. Bug #58509
  2. Comment #7

Comment 7 for bug 58509

Revision history for this message
Scott James Remnant (Canonical) (canonical-scott) wrote :

Ok, assuming you've undone the damage to /lib/udev/devices/null, could you please reboot your machine until you have a /dev/null with only 0600 permissions.

Could you note whether it takes any longer to boot than usual?

From that boot, please attach /var/log/udev

Also please run "udevtest /class/mem/null"