From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Knecht Subject: Re: RAID Configuration For New Home Server Date: Sun, 6 Jun 2010 07:56:04 -0700 Message-ID: References: <3A.AD.03181.3FF2B0C4@cdptpa-omtalb.mail.rr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Leslie Rhorer Cc: Mdadm List-Id: linux-raid.ids On Sun, Jun 6, 2010 at 4:23 AM, Leslie Rhorer wro= te: > > =C2=A0 =C2=A0 =C2=A0 =C2=A0Oh, I almost forgot. =C2=A0It may be of no= table mention an array with a > 1.0 superblock can be read as if it were an ordinary partition. =C2=A0= This means > one can build a 1.0 superblock array containing a file system (ext2 m= ay be > the best choice in this case), but boot from the partition just as if= it > were not an array. =C2=A0Once the system is booted, the array can be = assembled > and then /boot can be mounted. =C2=A0This is because: > > 1. =C2=A0The 1.0 superblock is at the *END* of the array. > > 2. =C2=A0The file system when created only uses up the front part of = the > partition, leaving the superblock intact. > > 3. =C2=A0GRUB does not require the file system to be mounted in order= to read the > kernel and the initrd. =C2=A0(Actually, it could be made to work even= if it did > mount the partition, but since it does not, it makes it much easier.) > > =C2=A0 =C2=A0 =C2=A0 =C2=A0Indeed, this is the only way of which I kn= ow to boot to an array > using GRUB legacy. > > Actually that is of interest. If there's a way to use a single RAID boot partition by itself once in awhile then there's value there if something has gone wrong and you're just trying to get the machine up and running. Thanks! - Mark -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html