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Stormmind
Tux's lil' helper
Joined: 11 Aug 2002
Posts: 112
Location: Sweden
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 Posted: Fri Nov 15, 2002 11:47 pm Post subject: Kernel panic! Help! |
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I needed to recompile the kernel and did it without any problems. But when I tryed to backup the existing bzImage, I didn't found it. Whole /boot was scrambled! Since I was still able to boot, I figured the i-nodes table on the partition became corrupt. I didn't know how to restore it (if it was possible at all), so I formatted the boot-partition, copied over the new kernel and reinstalled grub on it.
When I rebooted, I was greeted with the grub prompt instead of the usual picture flashing by, but I found out how to load the kernel image and boot it. When doing so I got kernel panic: "VFS: Unable to mount root fs on 03:03)". I had no idea what that meant, but the problem could be that I forgot to enable something in the kernel, since I removed the old gentoo-source after I emerged the new one. I did copy the config file from the old to the new one, though.
So I booted from a cd and followed the installation instructions skipping steps I thought was unnessecary (I allready had patitions, for example) untill I was able to mount my root fs. Then I recompiled the kernel again enabling things I thought could be needed (too bad there is no good description of all the options, cause I'm not sure about 75% of them). But I still get the same kernel panic on boot!
Any ideas on what might be wrong? What options in the kernel do I _have_ to enable? Are the any options that _need_ to be disabled? At the moment I don't see how I can fix this without reinstalling Gentoo.
Thanks in advance,
Storm |
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rac
Bodhisattva
Joined: 30 May 2002
Posts: 6553
Location: Japanifornia
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| Posted: Fri Nov 15, 2002 11:53 pm Post subject: Re: Kernel panic! Help! |
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| Stormmind wrote: | | (too bad there is no good description of all the options, cause I'm not sure about 75% of them) |
Pressing '?' gives help.
| Quote: | | What options in the kernel do I _have_ to enable? |
Support for everything needed to mount your root filesystem. The filesystem type you're using on /, support for the IDE or SCSI controller, disk support.
| Quote: | | At the moment I don't see how I can fix this without reinstalling Gentoo. |
That will not do anything helpful. If you are stuck compiling kernels, there is no point to reinstalling: you will get stuck at the same place. Anything more anyone can tell you will require information about your hardware, disk partition layout and filesystem type choice.
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Stormmind
Tux's lil' helper
Joined: 11 Aug 2002
Posts: 112
Location: Sweden
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| Posted: Sat Nov 16, 2002 12:18 am Post subject: |
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| Well, I have an IDE drive with 3 patitions: hda1 (boot), hda2 (swap), hda3 (root). The boot patition is ext2 and root is xfs. It is possible that I didn't compile the xfs support in the kernel, but that is only because I couldn't find it. I enabled anything I thought would be usefull in the filesystems setup. =/ |
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Delphiki
Guru
Joined: 04 Oct 2002
Posts: 337
Location: A2
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| Posted: Tue Nov 19, 2002 2:58 am Post subject: |
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I don't know if you're still having this problem, but if you are.. are you sure you have a kernel which supports Xfs? If you couldn't find it in the kernel options there's a good chance that's why. I believe it's in gentoo-2.4.l9 or higher..
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rac
Bodhisattva
Joined: 30 May 2002
Posts: 6553
Location: Japanifornia
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| Posted: Tue Nov 19, 2002 3:58 am Post subject: |
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Two choices for XFS support in current kernels: either emerge xfs-sources, or unmask gentoo-sources-r10 and define USE="xfs" before emerging it.
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