[lug] RAID boot problems

Case Jones philipj at interchange.ubc.ca
Fri Apr 25 11:24:12 MDT 2003

On Fri, 25 Apr 2003 11:29:13 -0600
John Hernandez <John.Hernandez at noaa.gov> wrote:

> Now, during boot, I get a kernel panic when it has problems reading the EXT3 
> superblock for the root filesystem, which lives on /dev/md2.  md2 is a raid1 
> comprised of /dev/sdc3 and /dev/sdd3, and both partitions are set as type 
> 'fd'.  The system does report loading the raid1 driver earlier on in the boot 
> process.
> Here's another bit of info.  I can boot from the install cd as 'linux rescue', 
> and all my filesystems are correctly mounted, including root, under 
> /mnt/sysimage.  Am I not loading a module that needs loading during boot?  I 
> have no problems running fsck on an unmounted /dev/md3 in rescue mode, so 
> it's not a filesystem corruption problem.
> I'd include raidtab and other files, but they're a little difficult to get to 
> right now.

Since it's your root filesystem, I'm betting that you need to compile 
into your kernel the modules that show up when you do 'lsmod' on the 
rescue CD that can read the filesystem.


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