Hi, I have installed lvm2 on debian and trying to run: pvcreate /dev/snap (when /dev/snap is a loopback file) and get an error "Device /dev/snap not found". My exact steps: 1) dd if=/dev/urandom of=/dev/snap bs=4096 count=1310702 (lopback file 5GB) 2) mkfs.ext3 /dev/snap 3) pvcreate /dev/snap Why ? Can't i create it on loopback file?