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Re: More RAID-1 problems





jeff bubble org wrote:
I've again run into a problem with RAID-1 on my system.  I can mount all
the raid volumes using the linux rescue boot option from the install CD.



What I have done so far (while using the rescue CD)

verified that the UUID's listed in the /etc/mdadm.conf file are correct
(mdadm -D /dev/mdX matches what's in the conf file).
Reinstalled grub with "grub-install /dev/sda" and "grub-install /dev/sdb"
Reviewed bugzilla bugs 447818 & 444237 and tried modifying the
/etc/rc.sysinit file to create the arrays at boot time.

Any suggestions would really be appreciated.

Thanks,

Jeff

I extracted the initrd file and looked at the file "init".  in this file
I can see the following (relevant) information..



it appears as the mdadm is not starting properly or assembling the array
properly.  Can anybody confirm if the init file appears correct?  I
tried modifying the mdadm line to remove the /dev/md3 (and 6) and it
tried to assemble all the volumes but said that /dev/mdX (listed all
my array volums) didn't exist with "mdadm: no devices found for /dev/md..."


Thanks, Jeff

Just thought I'd post a follow-up, the problem has been solved and I learned something new in the process.

I extracted the files from the initrd file but didn't realize that a copy of the mdadm.conf file is stored there as well. Sometime between the last two kernel updates I had modified the /etc/mdadm.conf file with incorrect settings for the arrays, I had then installed a new kernel update which picked up my bad /etc/mdadm.conf file and inserted it into the initrd. Once I learned that a copy of the conf file is stored in the initrd it was a simple process to manually adjust the initrc file with the correct file.
Problem solved!

Only remaining question, if I should adjust the /etc/mdadm.conf file again how can I get the initrc file to update without having to manually uncompress and extract the cpio archive and then re-archive and re-compress it by hand?

Thanks, Jeff


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