Re: device-mapper problem

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On 06/10/2010 11:31 AM, Ali Reza Sajedi wrote:
> Hello All,
>  
> I have cryptsetup 1.1.2 installed.
>  
> Everytime after a new boot when I try to execute a cryptsetup command I
> get the following error:
>  
> /proc/misc: No entry for device-mapper found
> Is device-mapper driver missing from kernel?
> Failaure to communicate with kernel device mapper driver.
>  
> The problem is solved after trying to load the module dm_mod with:
>  
> modprobe dm_mod
>  
> Inspite of loading the module this problem keeps coming with every
> system booting.

The dm_mod module must be loaded before using DM devices, so probably
this is missing from initramdisk init? Depends on distro.

Milan
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