grub on raid1 cannot mount filesystem
Pavel Lisy
pali at tmapy.cz
Wed Jun 29 21:16:01 UTC 2011
Hello
I've found strange problem in new Fedora 15. I suppose it should work.
It's maybe fdisk or grub problem.
Normaly I have this (working) multiboot solution on my home PC:
On first small (100MB) partition are grub1 files only with this config
(grub is installed to MBR):
--- cut ---
title Fedora 15
root (hd0,2)
chainloader +1
title Fedora 14
root (hd0,4)
chainloader +1
title Ubuntu
root (hd0,5)
chainloader +1
--- cut ---
Grub of linux distributions is installed into their partitions
I want make the same on mirrored environment
2 HD in mirror (raid1):
size id OS/SW FS
1. part 200MB fd grub ext4
2. part 8GB 82 SWAP swap
3. part 10 GB fd fedora 15 ext4
4. part extended
5. part 10 GB fd fedora 14 ext4
6. part 10 GB fd ubuntu ext4
...
last part rest. of disk - LVM
I've installed Fedora 15 on
/dev/md0 (/dev/sda1,/dev/sdb1) /boot
/dev/md1 (/dev/sda3,/dev/sdb3) /
grub was in MBR and everything worked.
THIS WORKS:
grub> root (hd0,0)
grub> setup (hd0)
When I want put grub of Fedora 15 to start of /dev/sda3 grub is
complaining:
THIS DOESN'T WORK:
grub> root (hd0,2)
grub> setup (hd0,2)
Error 17: cannot mount selected partition
Without mirror (raid1) it works. With raid1 it works only on first
partition. Can you explain me why?
Thanks in advance
Pavel
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