Comment 12 for bug 213308

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Emil Sit (emilsit) wrote : Re: Update from 2.6.24-12 to -14 or -15 results in changed uuid for root partition

Okay thanks. One possibility is that the new kernels are not recognizing your regular hard drives. It would be most useful if we can get some information from the newer kernels when they fail to boot, such as the output of 'dmesg'. To do that may require some playing around at the (initramfs): since you have no network at that point, the best option may be to see if we can mount a USB key (or external USB drive) and store the output of dmesg and some other commands on that. Are you comfortable enough with Unix shells to do so? The rough steps would be:

* At the prompt, attach a USB key/drive.
* Run dmesg to see what new device was recognized... should be something like sda or sdb, such as:
    [ 8072.023195] sdb: sdb1
* In this case, sdb1 is the new attached device. Mount that new device:
   mkdir /mnt
   mount /dev/sdb1 /mnt

* Then try running:
   ls -l /dev > /mnt/dev.txt
   dmesg > /mnt/dmesg.txt
   cat /proc/modules > /mnt/modules.txt
   umount /mnt

After that you should be able to reboot into your working kernel and re-attach the key/disk and attach the 3 files (dev.txt, dmesg.txt, modules.txt) to this bug.