From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phillip Susi Subject: Re: partitions Date: Fri, 28 Jan 2011 22:46:07 -0500 Message-ID: <4D438D7F.50007@cfl.rr.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Hank Barta Cc: doug@easyco.com, Roberto Spadim , Linux-RAID List-Id: linux-raid.ids On 01/28/2011 08:22 PM, Hank Barta wrote: > One exception: Grub (and perhaps LILO) can boot from a RAID1 partition > because the individual partition looks like a plain file system. It > requires v 0.9 metadata which stores the superblock at the end of the > partition. (Don't ask me how I know! ;) ) Grub2 can boot from raid1, raid0, raid5, it doesn't care ( without a plain /boot partition ). > I have used LVM to partition a RAID5. I have no idea if it adds > significant overhead vs. partitioning the RAID itself if that were > possible. It was arcane enough for me to not care to do it again. It > appears to have some powerful capabilities that were not needed by me. With LVM you can do online resize and moves, and don't run into issues trying to expand a partition and having to take forever to move an adjacent one over to make room, or other issues with the 4 primary partition limit. I find these to be pretty handy.