Tuesday, September 1, 2009

/proc/misc: No entry for device-mapper found Is device-mapper driver missing from kernel?

This is a bit of an irritating error, with a simple solution:

/proc/misc: No entry for device-mapper found
Is device-mapper driver missing from kernel?
Failure to communicate with kernel device-mapper driver.
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First of all, we need to make sure that our kernel configuration has Device Drivers->Multiple devices driver support (RAID and LVM) compiled in, with Device Mapper Support as a module.

Once device mapper support is compiled in as a module, if we still receive the error, we can run:

sudo modprobe dm_mod
sudo /sbin/lilo

The errors should now be gone:

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1 comment:

  1. Thanks man! Worked just fine on a debian 6 machine ;)

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