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|
#!/bin/bash
# This script returns the device on which the volume is mounted
#
# Input is always:
# $1 = name of the folder to locate the LVM device for
#
# The script MUST output a line with device="<path>", where path is the lvm id.
# The script MUST output a line with mountpoint="<path>", where path is the device root.
# This ensures that any tools invoked can write info to the console,
# and this will not interfere with the program functions.
#
# Rename the input
#
NAME=$1
#
# Get the reported mount point for the current folder
#
VOLUME=`df -P "$NAME" | tail -1 | awk '{ print $1}'`
if [ "$?" -ne 0 ] || [ -z "$VOLUME" ]
then
[[ "$?" -ne 0 ]] && EXIT_CODE=$? || EXIT_CODE=-1
echo "Error: unable to determine device for $NAME"
exit $EXIT_CODE
fi
MOUNTPOINT=`df -P "$NAME" | tail -1 | awk '{ print $NF}'`
if [ "$?" -ne 0 ] || [ -z "$MOUNTPOINT" ]
then
[[ "$?" -ne 0 ]] && EXIT_CODE=$? || EXIT_CODE=-1
echo "Error: unable to determine mount point for $NAME"
exit $EXIT_CODE
fi
#
# Get the LVM path for the mapped volume
#
function get_lvmid {
LVMID=`lvs "$1" --options vg_name,lv_name --noheadings 2>/dev/null | tail -1 | awk '{ print $1 "/" $2}'`
if [ "$?" -ne 0 ]
then
EXIT_CODE=$?
echo "Error: Unable to determine volume group (VG) for mapped volume $VOLUME"
exit $EXIT_CODE
fi
export LVMID
}
get_lvmid $VOLUME
#
# Get the LVM path for the mapped volume (second try)
#
if [ -z "$LVMID" ]
then
VOLUME=`mount | awk '($3 == "'$MOUNTPOINT'") {print $1}'`
get_lvmid $VOLUME
fi
if [ -z "$LVMID" ]
then
EXIT_CODE=-1
echo "Error: unable to determine volume group (VG) for $NAME"
exit $EXIT_CODE
fi
echo "mountpoint=\"$MOUNTPOINT\""
echo "device=\"$LVMID\""
exit 0
|
