Re: [PLUG] how to put partitions on RAID?

[Wayne Dawson <jongalt@pinn.net>]

At 09:44 PM 3/18/03 -0500, you wrote:
> > Where should I put the commands to assemble my /dev/md* devices so that
> > they can be seen and/or mounted at boot time?
>
> I don't know about grub but i know lilo can understand the superblocks and
> boot up from the raid partitions. Once it starts booting It behaves just
> like any other install. it will mount the filesystems you have in
> /etc/fstab.

It's interesting that documents I've seen on the web specifically say I 
should use 
grub.  <http://www.intel.com/support/motherboards/server/install_rh8.htm> 
That's the only reason I went to grub.  Not that I really understand lilo 
particularly well either- although it should just take a little bit of reading.

On the subject of raid partitions being loaded at boot time, I discovered a 
section of /etc/rc.d/rc.sysinit that sets up any raid devices it finds 
listed in /etc/raidtab, so I created that file (mdadm doesn't use it) and 
made sure I can assemble the raid devices with raidstart (worked without a 
hitch), then I made the /boot partition on sda bootable and told my CMOS to 
try booting from scsi before trying to boot from ide.  It didn't work:  the 
computer just stopped after it finished its ROM stuff as though it couldn't 
find a bootable device, although it never complained.

Nor do my raid devices get assembled when I boot from hda1 with 
/etc/raidtab in place....

> Well I boot from raid.  I don't even have the modules compiled into the
> kernel. I just made sure my initrd.img had everything i needed in it.

Ok, this is another thing I need to learn more about.  Maybe I'll be able 
to use the stock RH8 kernel.

> I mostly work on debian
> systems,so I'll only be able to help you out with the general linux issues.

That's fine, thanks for your help so far.

> To satisfy my curiosity, Why are you playing with raid stuff?

It's an imap mail server I'm setting up, so I want the data to be secure.

Wayne

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