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Bug 92293 - gentoo-sources-2.6.11-r8 can't mount root
Summary: gentoo-sources-2.6.11-r8 can't mount root
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: x86 Linux
: High normal (vote)
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-05-11 13:15 UTC by Joel Parker
Modified: 2005-05-17 15:18 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Joel Parker 2005-05-11 13:15:44 UTC
I've been using gentoo-sources-2.6.11-r6 without incident since it was marked stable. Yesterday I upgraded to 2.6.11-r8, using exactly the same configuration as -r6, and I get the following error on boot:

Block device /dev/hdc5 is not a valid root device...
The root block device is unspecified or not detected.
Please specify a device to boot, or "shell" for a shell...

My grub.conf sections were simply copied and pasted from the -r6 version, but with the version number changed.

My system successfully boots with the old -r6 and with vanilla-sources-2.6.11.7, so it's not a filesystem corruption issue. I diff'd the .config for -r6 and -r8, and the only difference is in the commented version and date at the top.
Comment 1 Daniel Drake (RETIRED) gentoo-dev 2005-05-11 14:02:42 UTC
Hmm. Please try reverting these 2 patches, although one at a time, so that we know which one is causing the problem:

http://dev.gentoo.org/~dsd/gentoo-sources/release-11.11/dist/2300_ali15x3-dma.patch

http://dev.gentoo.org/~dsd/gentoo-sources/release-11.11/dist/4300_via-vt6410.patch

To revert a patch,
cd /usr/src/linux
patch -p1 -R -i /path/to/patch
Comment 2 Joel Parker 2005-05-11 16:21:24 UTC
Interestingly, neither of those did anything.

First, I reversed the first, compiled, rebooted, and got the error.

Then I applied the first, reversed the second, compiled, rebooted, and got the error.

Finally, I reversed the first again while keeping the second reverse, compiled, rebooted, and got the error again.
Comment 3 Daniel Drake (RETIRED) gentoo-dev 2005-05-11 17:13:57 UTC
Weird. Can you please try 2.6.11-r7 so that we know whether the problem was introduced between r6 and r7, or between r7 and r8.

Thanks for the tests.
Comment 4 Joel Parker 2005-05-17 14:15:37 UTC
Well, I just tried -r8 on a fresh system, and it works great. Go ahead and
close, I guess.
Comment 5 Daniel Drake (RETIRED) gentoo-dev 2005-05-17 15:18:30 UTC
Ok, thanks for letting us know.