On Wed, Oct 02, 2002 at 01:50:32PM -0400, Javier Gostling wrote: > Also, is this bug reported in bugzilla?
Forget I asked. It has been reported tons of times. I found plenty of info on the subject on the different bugs, in case anyone needs help on this: - Use lilo instead of grub. Lilo stores the major and minor in the boot sector and has no problem with this issue. - As previously stated, changing the grub.conf kernel line to include the major/minor solves the issue too. - There is a patch (applied to more recent kernels) which includes the definitions for the RAID devices mentioned (/dev/rd/*, /dev/ida/*, etc.) You can find it in http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=65207 For those who want a detailed explanation of this issue, keep on reading. The kernel has a table which can be used to lookup device names and transform them into major/minor device numbers. This table is hard coded, and must reflect the entries in /dev to be useful. Grub send the kernel an option telling it where the root fs is (/dev/ida/c0d0p3 in my case). Since the initrd does not have this (and many other) entry in /dev, it must use this table to mount the right device with the real root fs. Now, if the string passed by grub does not match any of the device strings in the table, the kernel is unable to mount the new root fs. Lilo does not suffer from this, because the boot sector itself has the major/minor combo stored in it, so the kernel is passed the numbers, not the device name. So, since I'm not into recompiling kernels if I can avoid it, I'm back to lilo. At least until we have had time to test 7.3 enough to migrate production servers. Cheers, -- Javier Gostling Ingeniero de Sistemas Virtualia S.A. [EMAIL PROTECTED] Fono: +56 (2) 202-6264 x 130 Fax: +56 (2) 342-8763 Av. Kennedy 5757, of 1502 Las Condes Santiago Chile
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