On Wed, May 30, 2012 at 11:09 AM, Shane Johnson
<s...@rasmussenequipment.com> wrote:
>
> I am sure where you have a working system you already know this, but for
> those who find this and want to put LVM on top of a raid with Grub2,
> make sure you create the raid with the .9 version of the metadata or
> Grub2 won't work with it.
No and just set up a VM to prove it.
root@debmdraid:~# fdisk -l /dev/sda | grep /dev
Disk /dev/sda: 21.5 GB, 21474836480 bytes
/dev/sda1 * 2048 41940991 20969472 fd Linux raid autodetect
root@debmdraid:~# fdisk -l /dev/sdb | grep /dev
Disk /dev/sdb: 21.5 GB, 21474836480 bytes
/dev/sdb1 2048 41940991 20969472 fd Linux raid autodetect
root@debmdraid:~# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
[raid4] [raid10]
md0 : active raid1 sdb1[1] sda1[0]
20968376 blocks super 1.2 [2/2] [UU]
root@debmdraid:~# pvs
PV VG Fmt Attr PSize PFree
/dev/md0 vg-sysroot lvm2 a- 20.00g 0
root@debmdraid:~# vgs
VG #PV #LV #SN Attr VSize VFree
vg-sysroot 1 1 0 wz--n- 20.00g 0
root@debmdraid:~# lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
lv-sysroot vg-sysroot -wi-ao 20.00g
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