Bug#616689: Root-on-LVM setup fails often due to timing issues

[Juliusz Chroboczek <jch@pps.jussieu.fr>]

severity 616689 important
thanks

I'm confirming this bug, and raising the severity to important.

Jcristau and I have just finished upgrading a very old server from
oldstable to stable.  We were hoping to be able to perform the upgrade
over ssh.  We ended up having to go on-site, and spent the best part of
an hour struggling with this issue.  (This particular server takes some
5 minutes to reboot, so every change in the initramfs configuration is
a pain.)

scsi_mod.scan=sync turned out to solve our problem (thanks, Jurij).

-- Juliusz