Concerning Ubuntu, afaik there's a whole bunch of wiki entries
surrounding dmcrypt, using it for the root filesystem as well as stuff
like gnome+external drives etc. .
In any case, it might be helpfull to boot a rescue system and inspect
the initrd that is currently used or rebuild the initrds (in the hope
the needed modules will be packed into the initrd) ...
If I remember correctly there's something like update-initrd... which
should build proper initrds for all installed kernel versions, that is,
as long as the config is okay and the needed modules/scripts are
included. I hope the wikis hold information on that topic.
Regards
-Sven
Matt Rosales schrieb:
Thanks for the advice Sven! I'll check with the Ubuntu folks... The issue
happened as a result of some unusual installation circumstances, so I am not
sure if the installer copied the wrong kernel, or intrid, or failed to
include the modules. I appreciate your information!
Regards,
Matt
On Thu, Jan 8, 2009 at 12:27 PM, Sven Eschenberg <sven@xxxxxxxxxxxxxxxxxxxxx
wrote:
Hi Matt,
this pretty much depends on several things. First things is: Are the
ciphers and dm drivers built into the kernel or not.
Second, are they really in the initrd.
Third, at what point during the initrd does your distribution load them.
I personally use an initramfs which is built directly into the kernel
image, but this is not straight forward at all.
Concerning documentation, you'll need to check with you distribution, since
they do the policies where and when to load modules etc. .
Regards
-Sven
Matt Rosales schrieb:
Hi All,
I am trying to do some debugging on my system Re: dm-crypt at boot time.
(IE
the kernel can't find my device-mapper root partition for finishing the
boot). What I am unclear is at what point dm-crypt is actually loaded by
the
kernel, or by intrid. I haven't been able to find a run down of when it is
loaded, or what its role is during boot. Would someone please point me to
the resources I need to figure this out? Thanks all!
Cheers,
Matt
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