I'm trying to mount an LVM partition using the archie livecd (ie kernel 2.6.13). I've installed lvm2 and device-mapper (1.01.05) but although vgscan gives:
[root@localhost archie]# vgscan
Reading all physical volumes. This may take a while...
Found volume group "vg1" using metadata type lvm2
[root@localhost archie]# vgchange -a y
/proc/misc: No entry for device-mapper found
Is device-mapper driver missing from kernel?
Failure to communicate with kernel device-mapper driver.
0 logical volume(s) in volume group "vg1" now active
Should have installed the appropriate module:
# modprobe dm_mod
# dmsetup ls
now lists the correct virtual devices.