[aklug] Re: Code blue, patient not responding

Hey. Boot insert.cd or an ubuntu desktop live cd. install cryptsetup then
mount the crypt device. After you get done with all of that chroot into the
mountpoint you just used and rebuild your initrd.
Your kernel loads fine, it loads the initrd, the initrd doesn't have the ide
drivers or some similar something module needed to initialize the IDE devices on
the Dell.

What distro, btw? In debian you just run 'update-initramfs -k all -u'

Shane

Christopher Howard wrote:
> Hi. One of my servers at home got fried during a power fluctuation. It
> was a Compaq Presario with an AMD Sempron (32-bit) processor (1.8 Ghz, I
> think) and a 150 GB hard drive. The motherboard is toast, unfortunately,
> but the hard drive seems to be intact and fully functional.
>
> I transplanted the hard drive to an older Dell Dimension 4100, with a 1
> GHz, 32-bit Pentium III. My desire is to simply use this hard drive in
> the Dell without wiping it or reinstalling anything. While there is no
> critical data that would be lost by wiping the drive, it nevertheless
> would be a real bother to start from scratch again, as it would mean
> configuring afresh a lot of server settings and database configurations.
> So I'd rather just boot the hard-drive in the new machine and continue
> as before, minus some processing power.
>
> My problem: The hard drive utilized LVM layered on top of 256-bit
> encryption. The boot directory was on one partition, and the other
> partition was encrypted, with two logical volumes (if I remember
> correctly). The system on the hard drive is a Debian Lenny 32-bit OS.
>
> The hard drive boots fine and goes through GRUB fine. But after it loads
> the kernel, it comes to the place where it would normally ask for my
> encryption passkey. Instead of that, I get this:
>
> START QUOTE
> Volume group "alpha" not found
> Volume group "alpha" not found
> cryptsetup: source device /dev/hdc2 not found
> cryptsetup: source device /dev/hdc2 not found
> Begin: Waiting for root file system ... done.
> Gave up waiting for root device. Common problems:
> (... A few lines suggesting what might be the problem ...)
> ALERT! /dev/mapper/alpha-001 does not exist. Dropping to a shell!
> END QUOTE
>
> Then it drops me to a BusyBox shell, with a minimal file-system which
> does not include a home directory or any of the data from the encrypted
> file-systems.
>
> I attempted to fix the problem by switching the hard drive to the other
> IDE cable, but that had no effect. Anyone have an idea how I can fix
> this? I have access to the PC's BIOS, as well as the GRUB menu (I
> remember the password for making changes), as well as this busy box
> shell. Is there a boot option or something I should change so that the
> kernel knows where to look for the encrypted data?
>
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Received on Thu Jun 11 08:59:01 2009