Re: Applying the kernel-patch-2.2.10-raid 2.2.10-3 to 2.2.15
On Tue, May 16, 2000 at 07:57:54PM -0400, Mike Bilow wrote:
> On 2000-05-16 at 09:30 -0400, Michael Stone wrote:
> > On Tue, May 16, 2000 at 06:40:42AM -0400, Mike Bilow wrote:
> > > Can this be done? Definitely -- we did it. However, this is not a
> > > project for anyone unless they are up for a challenge.
> >
> > If you're planning to use raid1, it's possible to install to a regular
> > partition, create a degraded raid1 on the second partition, copy
> > everything from the regular partition to the raid1, and then add the
> > first partition to the raid set. That's probably easier than trying to
> > do it at install time.
>
> This is a bad idea. If you do this, you would not be able to use
> persistent superblocks because the RAID superblock is written to the end
> of the partition. In other words, you want to run mkfs against /dev/md0,
> not against /dev/hda1 (or /dev/sda1), which requires that /dev/md0 exist.
Read it again. You install on hda1. Then you create a degraded raid1 on
hda2. Copy from hda1 to md0, then add hda1 into md0. Persistent
superblocks work fine.
--
Mike Stone
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