Incompatible libdevmapper 1.01.03 and kernel driver

On Wed, 2006-07-19 at 20:12 +0000, Thomas Haberland wrote:
> /proc/misc: No entry for device-mapper found
> Is device-mapper driver missing from kernel?
> Failure to communicate with kernel device-mapper driver.
> /proc/misc: No entry for device-mapper found
> Is device-mapper driver missing from kernel?
> Failure to communicate with kernel device-mapper driver.
> Incompatible libdevmapper 1.01.03 (2005-06-13)(compat) and kernel driver
> Command failed

Did you check if the dm module is loaded?

> Did you check if the dm module is loaded?

unfortunately not. Because I never need to manually load the module and automatic mounting of the cryptdisks partition during system boot did work correctly since I installed Kubuntu 5.10 past year.
To be honest, in the meantime I found the correct module name for the required module (dm-crypt), the error message wasn't real helpfull.

After "modprobe dm-crypt" cryptdisks will start correctly.

So the final question is, what happened that a manual module load is required and the automatic mounting during system boot doesn't work anymore after a kernel security update.

Going to kick this over to udev, since I've no idea where else to put it. I do know that the dm-crypt module is not in the realm of "auto-loading", and since loading it makes everything work, then the kernel is no longer the culprit.

Something else needs to load this module.

cryptsetup should do this, I've modified that package appropriately and now the module will be loaded