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chronophobic
Apprentice
Joined: 07 Mar 2005
Posts: 237
Location: Sofia, Bulgaria
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 Posted: Fri Aug 18, 2006 1:09 am Post subject: Kernel Panic on boot [solved] |
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Hi,
After a lengthy install here's my functional (in chroot) gentoo system which doesn't want to boot (I can't copy-paste from it so I'm re-typing the important stuff):
That recognizes my windows partition as sda1, my shared vfat as sda2, my Linux ext3 as sda3.
The /etc/fstab I am using shows the following about the hard drive:
| Code: | | /dev/hda3 / ext3 moatime 0 0 |
grub.conf has a setup for 2 kernels that I ended up compiling: 2.6.17-r4 and -r5:
| Code: | timeout 5
default 0
fallback 1
splash=(hd0,2)/boot/grub/splash.xpm.gz
title Gentoo
root (hd0,2)
kernel /boot/vmlinuz root=/dev/hda3
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... and so on (the setup of the other kernel is similar.
I checked that vmlinuz and vmlinuz.old point at the correct targets and they do (which is obvious since the correct kernels boot).
So the error message when I ommit root= goes along the lines of:
| Code: | VPS: Cannot open root device "<NULL>" or unknown block (8,3)
Please append a correct "/root" boot option
Kernel panic:...(says it panics here)... Unable to mount root fs on unknown block (8,3) |
When I do have the root=/dev/hda3 it says something similar but about block (0,0)
I did the grub commands root (hd0,0) and setup (hda0)
...so the kernel does boot (and I guess it means the hard drive is set up properly and the modules in the kernel are OK) and I have no idea where the problem is.
Thanks in advance
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Last edited by chronophobic on Fri Aug 18, 2006 2:28 pm; edited 1 time in total |
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troymc
Guru
Joined: 22 Mar 2006
Posts: 553
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| Posted: Fri Aug 18, 2006 1:23 am Post subject: |
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Maybe I'm mis-understanding you, but if fdisk is showing you that your disk is /dev/sda3, why are you telling it to use /dev/hda3 in your fstab & grub.conf?
troymc |
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chronophobic
Apprentice
Joined: 07 Mar 2005
Posts: 237
Location: Sofia, Bulgaria
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| Posted: Fri Aug 18, 2006 1:26 am Post subject: |
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When I run the livecd it is /dev/sda3.
fstab lists it as hda3 (which I suppose will be valid if my kernel would boot)
Anyway, I did try sda3 as well just to check (twice) and it gives the same type of error, though I'm not 100% sure if it's about block (8,3) again or some other value.
Edit: no, it complains about (0,0) when I say /dev/sda3
Edit: I think I see some sort of error or warning in the first few lines when the kernel tries to boot, but I can't pause/cancel the execution and after the kernel panic I can't scroll up.
Edit: Solved once I stumbled upon a very thorough site about SATA which said that the ATI SATA drivers in the kernel are in fact in the Silicone Image drivers. Go figure.
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Installing Gentoo
