[PATCH] Fix prefix problem with LVM on RAID

[Michael Guntsche]

Hello,

While testing a soon to be deployed setup here I noticed that grub- 
setup is setting the prefix wrong if you run
LVM on Software RAID

grub-setup -v /dev/md0
...
grub-setup: info: dos partition is -2, bsd partition is -2, prefix is  
(md0)(fatoftheland-main)/boot/grub
...

As you can see the there is also (md0) in the prefix which does not  
work.
Attached a small patch that fixes this problem for me. I am not sure  
if it is the best way to fix it so please take a look.
If the root device is on LVM only add the LVM part if it is on RAID  
only add the RAID part.

Kind regards,
Michael

lvm-on-raid.patch
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smime.p7s
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