lvm2 root partition should wait for udev to settle before giving up

[Gabriel de Perthuis]

Binary package hint: initramfs-tools

I have a root partition layered over lvm, raid, and the sata_via kernel module.
It doesn't appear immediately, and local-top/lvm2 fails to find it.

Once initramfs bails to a shell, lvm vgscan && lvm vgchange -ay are enough to make the partition available.

A mountroot fail hook (add_mountroot_fail_hook) in combination with udevadm settle might be able to fix the problem, assuming the udev scripts are synchronous and wait for array assembly and the like.

[Gabriel de Perthuis (g2p)]

This patch solves the problem using the add_mountroot_fail_hook approach.

It's rather safe and no worse than the current situation, but calling the various fail hooks is slow, because some of them are sleeping.
Calling udevadm settle, or (in the future), spawning a process and making things event-driven à la dracut, would work better.

[Phillip Susi (psusi)]

I think that something else is wrong on your system. You should not need to explicitly vgchange -ay to activate the volumes since they are brought online automatically by udev when it detects a new disk.

[Phillip Susi (psusi)]

Is this still a problem in lucid?

[Launchpad Janitor (janitor)]

[Expired for lvm2 (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for initramfs-tools (Ubuntu) because there has been no activity for 60 days.]