----- Mail d'origine ----- De: Peter Rajnoha <prajnoha@redhat.com> À: gk180984@interia.pl Cc: LVM general discussion and development <linux-lvm@redhat.com> Envoyé: Mon, 14 Apr 2014 11:40:36 +0200 (CEST) Objet: Re: GRUB boot problem with lvm mirror type raid1 On 04/14/2014 10:42 AM, gk180984@interia.pl wrote: > Hi > I want to ask it is possible boot root file system (via GRUB) from LVM RAID1 volume? > I can boot root file system (with /boot) from linera LVM volume and from mirror volume, but when I create raid1 mirror GRUB can't boot from it: > > lvconvert --type raid1 -m1 gsys/vsys > > LVM mirror is work: > lvconvert -m1 gsys/vsys > > I have two disk and use only LVM, not other raid software. GRUB have lvm module. Grub doesn't support LVM RAID1 (it supports only RAID 4/5/6 type IIRC). However, I don't recommend using /boot on LVM at the moment since grub support for LVM is limited and unofficial. There's a plan to add official and more robust support though - there are ongoing discussions between grub and LVM team... -- Peter Hello ! May I chime in on this ? If the raid1 is made OUTSIDE lvm (ie soft raid1 giving /dev/md0 as a PV for LVM) will the Grub be apt to find it and boot ? Or is it the same case as above ? Thanks. _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
