[pkg-cryptsetup-devel] Bug#541835: Bug#541835: cryptsetup: unclear kernel requirements

[Jonas Meurer]

hello,

On 16/08/2009 Celejar wrote:
> On Sun, 16 Aug 2009 23:44:44 +0200
> Jonas Meurer <jonas at freesources.org> wrote:
> > i don't know, but maybe the modprobe in initramfs is a striped down
> > version that doesn't print out errors if the modules don't exist.
> 
> Right you are; I experimented, and modprobe doesn't complain no matter
> what I tell it to load - it just fails silently.
> 
> > how exactly did you try to load cbc and sha256? because you need to give
> > the module name as argument, not the filename (i.e. modprobe cbc, not
> > modprobe cbc.ko).
> 
> So cbc will not load, no matter what I try.  Any idea what the problem
> could be?
> 
> > if everything is setup properly, the cryptroot initramfs script should
> > load required modules automaticly anyway, so i guess that your selfbuild
> > kernel simply doesn't have cbc and sha256 modules compiled.
> 
> But they *are* - I see them under lib/modules/xxxx/kernel/crytpo:
> 
> aes_generic.ko  cbc.ko  crypto_algapi.ko  crypto_blkcipher.ko  crypto_hash.ko  sha256_generic.ko
> 
> So something is seriously messed up with my kernel / initramfs config -
> sha256 needs to be manually loaded, and cbc refuses to load at all.
> Any idea where to go from here?

seems like modprobe in initramfs is silent for non-existant modules even
with the -v (--verbose) commandline option. please check the following
commands and compare the output:

(initramfs) modprobe -vl cbc
kernel/crypto/cbc.ko

(initramfs) modprove -v cbc
insmod /lib/modules/2.6.30-1-amd64/kernel/crypto/cbc.ko

(initramfs) cat /proc/modules | grep cbc
cbc 3776 0 - Live 0xffffffffa015b000

and additionally please send me your kernel .config.

greetings,
 jonas
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: Digital signature
URL: <http://lists.alioth.debian.org/pipermail/pkg-cryptsetup-devel/attachments/20090817/f5375292/attachment.pgp>