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- #! /bin/sh
-
- # Startup script to create the device-mapper control device
- # on non-devfs systems.
- # Non-zero exit status indicates failure.
-
- # These must correspond to the definitions in device-mapper.h and dm.h
- DM_DIR="mapper"
- DM_NAME="device-mapper"
-
- set -e
-
- DIR="/dev/$DM_DIR"
- CONTROL="$DIR/control"
-
- # Check for devfs, procfs
- if test -e /dev/.devfsd ; then
- echo "devfs detected: devmap_mknod.sh script not required."
- exit
- fi
-
- if test ! -e /proc/devices ; then
- echo "procfs not found: please create $CONTROL manually."
- exit 1
- fi
-
- # Get major, minor, and mknod
- MAJOR=$(sed -n 's/^ *\([0-9]\+\) \+misc$/\1/p' /proc/devices)
- MINOR=$(sed -n "s/^ *\([0-9]\+\) \+$DM_NAME\$/\1/p" /proc/misc)
-
- if test -z "$MAJOR" -o -z "$MINOR" ; then
- echo "$DM_NAME kernel module not loaded: can't create $CONTROL."
- exit 1
- fi
-
- mkdir -p --mode=755 $DIR
- test -e $CONTROL && rm -f $CONTROL
-
- echo "Creating $CONTROL character device with major:$MAJOR minor:$MINOR."
- mknod --mode=600 $CONTROL c $MAJOR $MINOR
-
-