[gentoo-dev] grub and preloading modules

[gentoo-dev] grub and preloading modules

[rick philbrick]

Hi everyone,

So many questions to ask.. I'll choose just one today.

I am trying to get sw/raid (RAID 1) on a gentoo box w/
2 ide channels to boot up as a mirrored disk array. I
have read thru Howtos and noticed that they discuss
the passing of options thru lilo. But since gentoo
uses GRUB and not lilo how am I going to make this
work?

I have followed the instructions, I have had some
success in that both disks are accessable but I can't
boot to the /dev/md0 device, the array.

Thoughts and comments always welcome,
RIckp

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[gentoo-dev] grub and preloading modules

[rick philbrick]

Hi everyone,

So many questions to ask.. I'll choose just one today.

I am trying to get sw/raid (RAID 1) on a gentoo box w/
2 ide channels to boot up as a mirrored disk array. I
have read thru Howtos and noticed that they discuss
the passing of options thru lilo. But since gentoo
uses GRUB and not lilo how am I going to make this
work?

I have followed the instructions, I have had some
success in that both disks are accessable but I can't
boot to the /dev/md0 device, the array.

Thoughts and comments always welcome,
RIckp

__________________________________________________
Get personalized email addresses from Yahoo! Mail - only $35 
a year!  http://personal.mail.yahoo.com/

Re: [gentoo-dev] grub and preloading modules

[drobbins]

On Thu, Feb 01, 2001 at 12:49:32AM -0800, rick philbrick wrote:
> Hi everyone,
> 
> So many questions to ask.. I'll choose just one today.
> 
> I am trying to get sw/raid (RAID 1) on a gentoo box w/
> 2 ide channels to boot up as a mirrored disk array. I
> have read thru Howtos and noticed that they discuss
> the passing of options thru lilo. But since gentoo
> uses GRUB and not lilo how am I going to make this
> work?

You shouldn't need to pass any options.  All you need to
do is make sure that once your RAID-1 root filesystem is
created and mounted that you copy your /etc/raidtab to 
/mnt/gentoo/etc/raidtab, and that after the chroot process
you compile a new kernel and install it (with RAID-support
built-in) before you unmount all filesystems and reboot.

As long as your RAID partition has partition type "FD",
it'll be detected and started automatically at boot time.
Just use this line for GRUB:

kernel root=/dev/md0

...and you should be all set.  Of course, I haven't gone
into detail and haven't tried it myself, but it should work.
I should be able to try this in VMware in the next few days
and add the necessary steps to the install guide.

Best Regards,

-- 
Daniel Robbins					<drobbins@gentoo.org>
President/CEO					http://www.gentoo.org 
Gentoo Technologies, Inc.