Grub2 does not detect PVs if they are not at the beginning of the disk

[Michael Guntsche]

Hello,

Testing the new LVM support in grub2 I noticed that the new LVM code  
does not detect LVM PVs if they are not at the beginning of the disk.
The problem is in "grub_lvm_scan_device". It just checks the beginnig  
of the disk for the LVM signature. If you have several partitions and  
the PV is note the the first partition, it does not find it.
I spent this day trying to fix this (using grub_partition_iterate) do  
check every partition on a disk for the signature, but did not  
succeed at all. I just never got grub_partition_iterate to call my  
callback.
Maybe someone with more knowledge about grubs internals can take a  
look at it.

Kind regards,
Michael