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92 lines
2.9 KiB
Bash
Executable file
92 lines
2.9 KiB
Bash
Executable file
#!/bin/sh
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#-
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# Copyright (c) 2010 iXsystems, Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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# Query a disk for partitions and display them
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#############################
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. ${PROGDIR}/backend/functions.sh
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if [ -z "${1}" ] ; then
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echo "Error: No disk specified!"
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exit 1
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fi
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if [ -z "${2}" ] ; then
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echo "Error: No size specified!"
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exit 1
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fi
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if [ ! -e "/dev/${1}" ] ; then
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echo "Error: Disk /dev/${1} does not exist!"
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exit 1
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fi
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DISK="${1}"
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MB="${2}"
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TOTALBLOCKS="`expr $MB \* 2048`"
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# Lets figure out what number this slice will be
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LASTSLICE="`fdisk -s /dev/${DISK} 2>/dev/null | grep -v ${DISK} | grep ':' | tail -n 1 | cut -d ':' -f 1 | tr -s '\t' ' ' | tr -d ' '`"
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if [ -z "${LASTSLICE}" ] ; then
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LASTSLICE="1"
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else
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LASTSLICE="`expr $LASTSLICE + 1`"
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fi
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if [ ${LASTSLICE} -gt "4" ] ; then
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echo "Error: FreeBSD MBR setups can only have a max of 4 slices"
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exit 1
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fi
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SLICENUM="${LASTSLICE}"
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# Lets get the starting block
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if [ "${SLICENUM}" = "1" ] ; then
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STARTBLOCK="63"
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else
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# Lets figure out where the prior slice ends
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checkslice="`expr ${SLICENUM} - 1`"
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# Get starting block of this slice
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fdisk -s /dev/${DISK} | grep -v "${DISK}:" | grep "${checkslice}:" | tr -s " " >${TMPDIR}/pfdisk
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pstartblock="`cat ${TMPDIR}/pfdisk | cut -d ' ' -f 3`"
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psize="`cat ${TMPDIR}/pfdisk | cut -d ' ' -f 4`"
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STARTBLOCK="`expr ${pstartblock} + ${psize}`"
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fi
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# If this is an empty disk, see if we need to create a new MBR scheme for it
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gpart show ${DISK} >/dev/null 2>/dev/null
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if [ "$?" != "0" -a "${SLICENUM}" = "1" ] ; then
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gpart create -s mbr ${DISK}
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fi
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gpart add -b ${STARTBLOCK} -s ${TOTALBLOCKS} -t freebsd -i ${SLICENUM} ${DISK}
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exit "$?"
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