Bug#842299: autopkgtest-virt-qemu: attaching base image makes btrfs very confused
Christian Seiler [2016-10-30 21:12 +0100]:
> Well, it's not actually SYSTEMD_READY, the "btrfs ready" builtin is
> actually the culprit.
> So one needs to make sure the btrfs ready builtin is never executed
> for the corresponding devices. Which is why I did the LABEL/goto
> logic in my example.
So to generalize that a bit: blkid is called in
60-persistent-storage.rules, so we could add a rule to the already
existing /run/udev/rules.d/61-baseimage.rules:
KERNEL=="vd*", ENV{ID_SERIAL}=="BASEIMAGE", ENV{ID_FS_TYPE}="", ENV{ID_FS_USAGE}="", ENV{ID_FS_UUID}=""
This should short-circuit 64-btrfs.rules and any similar rules. This
at least works in a VM with ext4.
Martin
--
Martin Pitt | http://www.piware.de
Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org)
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