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Bug#583917: initramfs-tools: long delay (6–10 minutes) during boot (root device detection) after upgrade on RAID/LVM/LUKS setup



* Paul Menzel <pm.debian@googlemail.com> [Mon May 31, 2010 at 06:41:45PM +0200]:

> yesterday I upgrade my Debian Sid/unstable system after over a
> week. Several core packages were upgraded by doing this as lvm2,
> mdadm, initscripts, initramfs-tools. I have a standard md RAID1
> setup with LVM over it. Furthermore there is a partition for
> `/boot` and a LUKS encrypted `/`.

> Now I am seeing the following behavior. After GRUB2 started
> (`linux /vmlinuz-2.6.32-5-amd64 root=/dev/mapper/lvm-root …`) I
> first get to see a lot of lines

> 	sys/devices/virtual/block (some incremented number in 80??)

> (this is from memory). Afterward I am asked for the LUKS
> passphrase. After that nothing happens. Just a lot of – according
> to my Web research unrelated –udev-work messages about `NAME` and
> `SYMLINK` stuff and nothing happens. Then after six to ten minutes
> booting finally continues.

[...]

> Is that related to the `root` argument passed in GRUB to `linux`.
> In [1] the solution is to use a UUID instead of the path. Though I
> did not find how I can find out the correct value for my RAID
> device or LVM partition.

Executing 'blkid /dev/mapper/lvm-root' should provide you the UUID
of the LVM partiton for use as root=UUID=... argument.

regards,
-mika-

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