From mboxrd@z Thu Jan 1 00:00:00 1970 From: Goswin von Brederlow Subject: Re: md extension to support booting from raid whole disks. Date: Tue, 28 Apr 2009 11:35:47 +0200 Message-ID: <87ljplnmrw.fsf@frosties.localdomain> References: <1240574900.4507.2076.camel@ezra> <87hc0axhg9.fsf@frosties.localdomain> <49F68CE0.2010906@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <49F68CE0.2010906@zytor.com> (H. Peter Anvin's message of "Mon, 27 Apr 2009 21:58:08 -0700") Sender: linux-raid-owner@vger.kernel.org To: "H. Peter Anvin" Cc: Goswin von Brederlow , Daniel Reurich , linux-raid@vger.kernel.org List-Id: linux-raid.ids "H. Peter Anvin" writes: > Goswin von Brederlow wrote: >> >> Or grub2 could be thought to install itself into all MBRs of all >> drives in a raid set. >> > > ... which is obviously completely wrong, given that that would break the > whole RAID layer. Not if there is unused space for the MBR on every raid disk. The 1.2 metadata format leaves the first 4k free on every disk. > The right thing is to use a RAID-1 partition. > > -hpa And how do you create a raid-1 partition on a whole disk raid? MfG Goswin