RE: Installing Debian on a RAIDed partition
The more up-to-date infos are:
root can be put on raid but /boot must be on a non-raid. Exception is
/boot can be on RAID-1 with some patches to lilo which are made by RedHat
and I think are in the lilo found in woody.
the root-RAID-HOWTO is a bit outdated, or at least was a month ago, when I
installed a system on RAID (root as well). Look at raid-HOWTO for
up-to-date infos. I installed a system with every filesystem of it on
RAID-1 except for /tmp which is not preserved for next boot in any
case, and /boot since lilo in debian did not support RAID-1 booting at
that time.
Use RAID 0.90 (you can convert older version RAID arrays), and raidtools2
package. The raidtools2 package also contains the mentioned RAID-HOWTO. I
set everything up as mentioned in it, and it worked without problem.
Booting did not work due to other problems (it did not want to boot even
the stock install, when RAID was nowhere in sight yet, some problem with
SCSI settings I think, since I have the same problem with another SCSI
machine. It is using Adaptec 2940 UW). These problems don't have any
relation with RAID setup. Just put /boot in the first 1024 cylinder.
And of course read the whole HOWTO before you do anything to know what you
will be doing, or else you will be into some partition reorganization.
Preferably use a spare hard-drive for initial install.
The best would be of course to put a RAID0.90-supporting kernel on the
boot-disks, so that debian could be installed straight on raid without a
problem.
The kernel patches for RAID 0.90 can be found at
http://people.redhat.com/mingo
Regards,
Robert Varga
On Tue, 9 May 2000, John Gonzalez/netMDC admin wrote:
> On Tue, 9 May 2000, Robert H. Clugston wrote:
>
> >Whatever.. here's the instructions on how to load a raid partition as
> >root...
> >
> >http://www.linux.org/help/ldp/howto/Root-RAID-HOWTO.html
> >
> >
> >Yes. You cannot boot to a raid partition. One, lilo cant read a RAID
> >partition, and the 'raid' drivers havent been loaded yet. You will either
> >need to have the / or more specifically /boot be on a NON raid partition
> >(ie. floppy) or compile special tools to boot raid partitions. Someone has
> >developed info on that, but the address escapes me now, search the web and
> >it should turn up.
> >
> >The RAID howto|mini howto should be of assistance.
>
> Whatever...???
>
> What part of my statement does not make sense to you?
>
> How about:
>
> "or compile special tools to boot raid partitions. Someone has
> developed info on that, but the address escapes me now, search the web
> and it should turn up."
>
> In other words. It's not possible to simply compile in raid support and
> setup the device and then boot off of it right out of the box. It takes
> work, kernel patches, kernel support, among other things.
>
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