freebsd-skq/usr.sbin/pc-sysinstall/backend-partmanager/delete-part.sh
2011-12-30 10:58:14 +00:00

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#!/bin/sh
#-
# Copyright (c) 2010 iXsystems, Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
# Delete a specified partition, takes effect immediately
########################################################
. ${PROGDIR}/backend/functions.sh
. ${PROGDIR}/backend/functions-disk.sh
if [ -z "${1}" ]
then
echo "Error: No partition specified!"
exit 1
fi
if [ ! -e "/dev/${1}" ]
then
echo "Error: Partition /dev/${1} does not exist!"
exit 1
fi
PARTITION="${1}"
# First lets figure out the partition number for the given device
##################################################################
# Get the number of characters in this dev
CHARS="`echo $PARTITION | wc -c`"
PARTINDEX=""
# Lets read through backwards until we get the part number
while
z=1
do
CHARS=$((CHARS-1))
LAST_CHAR=`echo "${PARTITION}" | cut -c $CHARS`
echo "${LAST_CHAR}" | grep -q "^[0-9]$" 2>/dev/null
if [ $? -eq 0 ] ; then
PARTINDEX="${LAST_CHAR}${PARTINDEX}"
else
break
fi
done
# Now get current disk we are working on
CHARS=`expr $CHARS - 1`
DISK="`echo $PARTITION | cut -c 1-${CHARS}`"
# Make sure we have a valid disk name still
if [ ! -e "/dev/${DISK}" ] ; then
echo "Error: Disk: ${DISK} doesn't exist!"
exit 1
fi
echo "Running: gpart delete -i ${PARTINDEX} ${DISK}"
gpart delete -i ${PARTINDEX} ${DISK} >/dev/null 2>/dev/null
# Check if this was the last partition and destroy the disk geom if so
get_disk_partitions "${DISK}"
if [ -z "${VAL}" ] ; then
gpart destroy ${DISK}
fi
exit "$?"