Public bug reported: Binary package hint: casper
scripts/casper-bottom/23networking calls udevtrigger. It then enumerates all existing interfaces, and then adds a few well-known ones if they do not exist already. The problem is that there is no "udevsettle" after the "udevtrigger". If you're unlucky, the first part does not find eth0 (because it has not appeared yet). Then the module loads and finds the card -- and after that, the add-well-known-devices part skips eth0 because it is already present and thus should have been created in the first step. :-/ Ths simple solution is to add an "udevsettle": udevtrigger -Bpci -Iclass="0x02*" udevsettle This problem happens to be 95% reproducible in my qemu setup. ** Affects: casper (Ubuntu) Importance: Undecided Status: Unconfirmed -- networking script does not wait for udev to settle https://launchpad.net/bugs/77438 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs