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| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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For_More_Tools:
CategoriseDev () {
##################
# Purpose is to find out to which device category a device belongs to
# input: /dev/hda1, /dev/md0, /dev/vg00/lvol01
# output: MD | LVM | NORMAL
Log "CategoriseDevice called with '$@'"
local dev=${1}
if [ -f ${dev} ]; then
DevMajorNr="-1" # a normal file
else
# see linux/Documentation/devices.txt
DevMajorNr=`ls -Ll ${1} | awk '{print $5}' | cut -d"," -f 1`
fi
case ${DevMajorNr} in
9) # Software RAID md device
echo 'MD' ;;
58|253|254) # LVM
echo 'LVM' ;;
*) # default
echo 'NORMAL' ;;
esac
}
FindPhysicalDevice () {
Log "FindPhysicalDevice called with '$@'"
##################
# Purpose is to find physical device underneath a meta device or lvm
# input: /dev/hda1, /dev/vg00/lvol1, /dev/md0 (arg1), MD, LVM, NORMAL (arg2)
# output: /dev/hda, /dev/sdb, /dev/cciss/c0d1
local mdline
local VG
case "${2}" in
"NORMAL") # IDE, SCSI, RAID disk
# input=$1, output=$Dev (hda1)
ParseDevice ${1}
StopIfError "Parsing device failed: $1"
# input=$Dev, output=$dsk
ParseDisk $Dev
StopIfError "Parsing disk failed: $Dev"
echo "/dev/$dsk"
;;
"MD") # software Raid - find disks under /dev/md?
ParseDevice ${1}
StopIfError "Parsing device failed: $1"
cat /proc/mdstat | grep "${Dev}" | cut -d" " -f 5- | tr " " "\n" | \
while read mdline
do
local Dev=`echo "${mdline}" | sed -e 's;\[.*;;'`
ParseDisk ${Dev}
StopIfError "Parsing disk failed: $Dev"
echo "/dev/${dsk}"
done
;;
"LVM") # LVM - find disks under /dev/vg??/lvol??
[ -c /dev/mapper/control ]
StopIfError "LVM version 1 not supported"
for disk in $(lvm vgdisplay -v 2>/dev/null | awk -F\ + '/PV Name/ {print $4}');
do
local devcat=$(CategoriseDev ${disk})
if [ ${devcat} = 'NORMAL' ]; then
ParseDisk ${disk}
StopIfError "Parsing disk ${disk} failed"
else
FindPhysicalDevice ${disk} ${devcat}
fi
echo "${dsk}"
done
;;
esac
}
ParseDevice () {
###########
# input $1 is a line containing as 1st argument a file system device, eg.
# /dev/hda1, /dev/sdb1, /dev/md0, /dev/disk/c1t0d0, or even devfs alike
# /dev/ide/host0/bus0/target0/lun0/part2
# Output: Dev: hda1, sdb1, md0, md/0, disk/c1t0d0, vg_sd/lvol1
# _Dev: hda1, sdb1, md0, md_0, disk_c1t0d0, vg%137sd_lvol1
#Dev=`echo ${1} | awk '{print $1}' | cut -d"/" -f 3-`
#_Dev=`echo ${Dev} | sed -e 's/_/%137/' | tr "/" "_"`
Dev=${1#*/dev/}
Dev=${Dev// /}
_Dev=${Dev//_/%137}
_Dev=${_Dev//\//_}
}
ParseDisk () {
Log "ParseDisk called with '$@'"
#########
# input is $1 (most likely $Dev as arg.; e.g. sda1, disk/c1t0d0)
# output is dsk (e.g. sda, disk/c1t0) and _dsk (e.g. sda, disk_c1t0)
# is it one of those with "p" at the end?
# this will match: Mylex (rd/c?d?p?), Compaq IDA (ida/c?d?p?),
# Compaq Smart (cciss/c?d?p?), AMI Hyperdisk (amiraid/ar?p?),
# IDE Raid (e.g. Promise Fastrak) (ataraid/d?p?), EMD (emd/?p?) and
# Carmel 8-port SATA (carmel/?p?)
local DEVwP
local disc
#DEVwP=`expr "${1}" : "\(\(cciss\|rd\|ida\)/c[0-9]\+d[0-9]\+p[0-9]\+\|amiraid/ar[0-9]\+p[0-9]\+\|ataraid/d[0-9]\+p[0-9]\+\|\(emd\|carmel\)/[0-9]\+p[0-9]\+\)"`
case "$1" in
*rd[/!]c[0-9]d[0-9]p*|*cciss[/!]c[0-9]d[0-9]p*|*ida[/!]c[0-9]d[0-9]p*|*amiraid[/!]ar[0-9]p*|*emd[/!][0-9]p*|*ataraid[/!]d[0-9]p*|*carmel[/!][0-9]p*)
DEVwP=1
Log "ParseDisk recognized DEVwP for $1"
;;
*)
DEVwP=
;;
esac
if [ -c /dev/.devfsd ]; then
# e.g. disc=ide/host0/bus0/target0/lun0/disc
disc=`echo ${1} | cut -d"p" -f 1`disc
if [ -b /dev/${disc} ]; then # I'm paranoid I know
# to please sfdisk we have to backtrace the old style name (sda)
dsk=`ls -l /dev | grep ${disc} | awk '{print $9}'`
else
# maybe devfs was configured in old style only?
if [ -z $DEVwP ]; then
dsk=`echo ${1} | sed -e 's/[0-9]//g'` # sda
else
dsk=`echo ${1} | sed -e 's/p[0-9]\+$//g'` # cXdX
fi
fi
else
if [ -z $DEVwP ]; then
dsk=`echo ${1} | sed -e 's/[0-9]//g'` # sda
else
dsk=`echo ${1} | sed -e 's/p[0-9]\+$//g'` # cXdX
fi
fi
_dsk=`echo ${dsk} | tr "/" "_"`
}
#-----<--------->-------
Find_Root_Partition() {
echo $1 | cut -d"p" -f2- | sed -e 's/[a-zA-Z\/]//g'
}
#-----<--------->-------
Divide () {
#########
num1=$1
num2=$2
# divide with floating numbering
bc -l <<EOF
${num1}/${num2}
EOF
}
#-----<--------->-------
Multiply () {
###########
num1=$1
num2=$2
bc -l <<EOF
${num1}*${num2}
EOF
}
#-----<--------->-------
FixSfdiskPartitionFile () {
#^^^^^^^^^^^^^^^^^^^^^^
# Sometimes we have a warning message in the partitions.$_dsk file which
# makes sfdisk fail at restore time (we will remove those lines)
# parameter: $1 is the sfdisk output file to fix
grep -Evi '(^warning|^dos)' "$1" > "${TMP_DIR}/partitions.tmp"
# If LANG is not set to C (it should be) and sfdisk is producing locale specific comments
# for example in French something like "N<degree sign (U+00B0)> table de partition de "
# where <degree sign (U+00B0)> means one unicode character (in UTF-8 two bytes 0xC2 0xB0)
# then we should replace the "N" with hash(#) sign.
sed -e 's/^N/#/' <"${TMP_DIR}/partitions.tmp" >"$1"
rm -f $v "${TMP_DIR}/partitions.tmp" >&2
}
#-----<--------->-------
CheckForSwapLabel () {
###################
# Swap devices may have LABELs too - need to trace label if set
# Input: /dev/swap-dev
# Output: SWAPLABEL="" for no label, or "-L LABEL-swap" if label found
SWAPLABEL=""
# LABEL=SWAP-dev swap swap defaults 0 0
while read LABEL junk
do
LABEL="${LABEL/*=/}"
if dd if=$1 bs=1024 count=10 2>/dev/null | strings | grep -q "${LABEL}" ; then
SWAPLABEL="-L ${LABEL}"
Log "Found swap label $LABEL on $1"
fi
done < <(grep "LABEL=" /etc/fstab | grep swap)
}