Further narrowing it down, removal of the file /lib/udev/rules.d/95 -devkit-disks.rules followed by the udevadm trigger causes the empty /proc.
-- [MASTER] package policykit-1 0.96-1 failed to install/upgrade: start-stop-daemon: nothing in /proc - not mounted? when system is run from external card https://bugs.launchpad.net/bugs/554718 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs