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Cakkie
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Joined: 27 Oct 2003
Posts: 4

PostPosted: Wed Mar 03, 2004 8:04 am    Post subject: SCSI RAID boot problems Reply with quote

I'm having troubles booting form a SCSI RAID 5 array.
When booting, it decompresses the kernel (which also resides on the array), but halfway the boot process, I get following messages:

Code:
VFS: Cannot open root device "ida/disc0/part3" or 00:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 00:00


I'm using Grub to boot, and since it is able to find the kernel image, I assume there's nothing wrong with the RAID, but mearly the part I need to pass as "root=".

I'm using /dev/ida/disc0/part3, since that is the disc/partition when I'm booting from the LiveCD. Anyone knows what I need to put there in order to be able to boot?
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Kiroku6
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Joined: 14 Feb 2004
Posts: 283
Location: unknown some hard drive on some server

PostPosted: Wed Mar 03, 2004 8:24 am    Post subject: Reply with quote

hereshow your grub should look...

grub> root (hd0,0)
grub> setup --stage2=boot/grub/stage2 (hd0)
grub> quit
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Kiroku6
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Joined: 14 Feb 2004
Posts: 283
Location: unknown some hard drive on some server

PostPosted: Wed Mar 03, 2004 8:25 am    Post subject: Reply with quote

if this doesnt help, sorry, im trying, im pretty new, so my knowledge is small, this worked for me though.
look for this part of grub and change the setup line to the above

grub> setup (hd0,0)
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Cakkie
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Joined: 27 Oct 2003
Posts: 4

PostPosted: Wed Mar 03, 2004 8:30 am    Post subject: Reply with quote

Hi, I already installed Grub (indeed using the stage2 parameter), but as it is able to boot the kernel image (which panics), I assume that Grub has been installed correctly, and that It's mearly the root= parameter I need to get right in grub.conf
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Kiroku6
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Joined: 14 Feb 2004
Posts: 283
Location: unknown some hard drive on some server

PostPosted: Wed Mar 03, 2004 9:21 am    Post subject: Reply with quote

Like I said lol, im new, just trying to sound smart or something lol. Thought i would share my small amount of knowledge.
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BlinkEye
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Joined: 21 Oct 2003
Posts: 1046
Location: Gentoo Forums

PostPosted: Sun Mar 07, 2004 12:26 am    Post subject: Reply with quote

what's the difference between stage1 and stage2? i used stage1 and get the kernel panic too (for further information have a look at https://forums.gentoo.org/viewtopic.php?t=145738. i used stage1 as suggested by this howto: https://forums.gentoo.org/viewtopic.php?t=8813&postdays=0&postorder=asc&highlight=mkraid+aborted&start=0&sid=3daa82669cd4659c5042254a017727ce. obviously it doesn't matter...
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