Re: Autostart RAID 1+0 (root)

[Jakob Østergaard]

On Tue, Jan 22, 2002 at 03:12:07PM -0500, Bill Davidsen wrote:
> On Tue, 22 Jan 2002, [iso-8859-1] Jakob Østergaard wrote:
> 
> > On Tue, Jan 22, 2002 at 12:15:28PM -0500, Bill Davidsen wrote:
> 
> > I think he is referring to software RAID. And yes, it is indeed a problem
> > that the RedHat installer cannot create nested RAIDs (at least, I too was
> > unable to do that, so either it's impossible, or I'm equally blind).
> 
>   The RH installer also won't do RAID from a text install, so if you lack
> memory or the right graphic card you just can't do the install at all
> (unless I miss something). What good is install from serial console if you
> can't use any setup but the big blob?

I was able to set up RAID in text-mode from bootnet.img on a low-end pentium
yesterday.  But that was RedHat 7.2, and I think that earlier versions didn't
allow that.  Are you sure you tried this with 7.2 ?

> 
> > 
> > > This is because if the first disk fails totally, the 2nd will be used to
> > > boot. You also should use an initrd image to be sure all you need to get
> > > up is on that small mirrored partition. After that your other partitions
> > > can be whatever pleases you.
> > 
> > Also, GRUB/LILO only support booting from RAID-1 (or no RAID).
> 
>   Another factor, for sure. Fortunately I believe only the boot partition
> needs to be RAID-1, after that the kernel should take over.

Yep.

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