[CentOS] Re: Anaconda doesn't support raid10

[Ross S. W. Walker]

> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf Of Ruslan Sivak
> Sent: Friday, May 11, 2007 3:34 PM
> To: CentOS mailing list
> Subject: Re: [CentOS] Re: Anaconda doesn't support raid10
> 
> Ross S. W. Walker wrote:
> > I think if you setup the 4 disk raid1 at boot grub gets installed
> > on each as part of the install process.
> >
> > You'd only need to do it yourself if you put a new disk to replace
> > a failed one, then just run grub-install on it.
> >
> > -Ross
> >
> >   
> Why is this exactly?  Does it have something to do with the 
> boot sector 
> or something? Doesn't the raid1 take care of mirroring everything on 
> that partition (with the exception of the boot sector of the drive?)

Exactly, grub is installed on sector 0, the boot sector, and that
sector isn't touched when a new drive is partitioned and thus not
part of the mirrored data.

You may also have to mark the /boot partitions on each drive as
bootable too, but grub may just ignore that flag... I can't remember.

-Ross

______________________________________________________________________
This e-mail, and any attachments thereto, is intended only for use by
the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail, you are hereby notified that any dissemination,
distribution or copying of this e-mail, and any attachments thereto,
is strictly prohibited. If you have received this e-mail in error,
please immediately notify the sender and permanently delete the
original and any copy or printout thereof.