Merge branch 'zrlang'
This commit is contained in:
qinbo
204
operation/mkTmpfstab.sh
Executable file
204
operation/mkTmpfstab.sh
Executable file
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#! /bin/bash
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############################################################################
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# DESCRIPTION: This shell is made for the bug of the mkinitrd-5.1.19.6 from
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# Redhat. The bug is that we can get the true raid device name
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# by UUID in fstab. So this file try to modify this bug.
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#
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# SCRIPT NAME: mkTmpfstab.sh
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#
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# argument: <-f|--from> specify the path of the old fstab
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# <-t|--to> specify the path of the temp fstab
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#
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# return value: 1 false to make the file
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# 0 make allright
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#
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# AUTHOR: ZR_Lang
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#
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# EMALL: zrlang@linx-info.com
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#
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# DATE: 2010-09-16
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#
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# HISTORY:
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# REVISOR DATE MODIFICATION
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# ZR_Lang 2010-09-16 create
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###########################################################################
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PATHFROM=''
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PATHTO=''
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LOGDIR="/var/log/"
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LOGFILE="mkTmpfstab.log"
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###########################################################################
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# Function Name: setArgument()
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# Input: $@
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# Return: nothing
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# Description: set the corresponding argument
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###########################################################################
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setArgument(){
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ARGV_MKFSTAB=($(getopt -l from:,to: -o f:,t: -- $@ 2>>$LOGDIR$LOGFILE))
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for((i=0; i<${#ARGV_MKFSTAB[@]}; i++))
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do
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case ${ARGV_MKFSTAB[$i]} in
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--from)
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((i++))
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PATHFROM=${ARGV_MKFSTAB[$i]}
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;;
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--to)
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((i++))
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PATHTO=${ARGV_MKFSTAB[$i]}
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;;
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-f)
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((i++))
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PATHFROM=${ARGV_MKFSTAB[$i]}
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;;
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-t)
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((i++))
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PATHTO=${ARGV_MKFSTAB[$i]}
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;;
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--)
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break
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;;
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*)
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echo "error argument, please use help message" >>$LOGDIR$LOGFILE
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exit 1
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;;
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esac
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done
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PATHFROM=`echo $PATHFROM| sed -e s/\'/''/g`
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PATHTO=`echo $PATHTO| sed -e s/\'/''/g`
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}
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###########################################################################
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# Function Name: cpTmpfstab()
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# Input: $PATHFROM $PATHTO
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# Return: nothing
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# Description: copy the old fstab to a temp place
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###########################################################################
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cpTmpfstab(){
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local i
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local TMPPATH=`echo "$2"|sed -e s/[/]/' '/g`
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for i in $TMPPATH
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do
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continue
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done
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local PATHTOFILE=$i
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local PATHTODIR=`echo "$2"|sed -e s/"$PATHTOFILE"/''/g`
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mkdir -p $PATHTODIR 2>>$LOGDIR$LOGFILE
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if [ $? != "0" ];then
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echo "can not makedir named $PATHTODIR" >>$LOGDIR$LOGFILE
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exit 1
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fi
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cp $1 $2 2>>$LOGDIR$LOGFILE
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if [ $? != "0" ]; then
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echo "can not copy $1 to $2" >>$LOGDIR$LOGFILE
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exit 1
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fi
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}
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###########################################################################
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# Function Name: mdfyTmpFstab()
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# Input: $PATHTO
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# Return: nothing
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# Description: modify the temp fstab, change UUID to the right device name
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###########################################################################
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mdfyTmpFstab(){
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local i
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local j
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local LASTNAME=''
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local UUIDFROMFSTAB=$(awk '/^[ \t]*[^#]/ { if ($1 ~ "^[UUID]") { print $1}}' $1)
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for i in $UUIDFROMFSTAB
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do
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blkid -t$i >/tmp/.blkid.tmp
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local NAMEFROMUUID=`cut -f 1 -d : /tmp/.blkid.tmp`
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if [ ! "${NAMEFROMUUID}" ];then
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echo "error UUID, can not find devices by blkid" >>$LOGDIR$LOGFILE
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exit 1
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fi
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if [ `echo $NAMEFROMUUID| wc -w` -lt 2 ];then
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LASTNAME=$NAMEFROMUUID
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else
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for j in $NAMEFROMUUID
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do
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if [ `echo $j|grep 'md'` ];then
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if [ ! $LASTNAME ]; then
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LASTNAME=$j
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else
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echo "too many raid devices be found" >>$LOGDIR$LOGFILE
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exit 1
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fi
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else
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if [ `mdadm -Ds -v|grep -w $j` ];then
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continue
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else
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echo "too many partitions be found" >>$LOGDIR$LOGFILE
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exit 1
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fi
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fi
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done
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fi
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sed -i s@$i@$LASTNAME@g $1
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LASTNAME=''
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done
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rm /tmp/.blkid.tmp
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}
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###########################################################################
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# Function Name: usage()
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# Input: nothing
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# Return: nothing
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# Description: print the helped message
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###########################################################################
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usage(){
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echo "Usage: mkraid [-h|--help] <-f|--from oldfstab> <-t|--to tmpfstab>"
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echo "This shell is just used to modify a false of mkinitrd, when used UUID to specify a raid device in fstab the mkinitrd always analysis false, not only one devices would be found according to the UUID. So I write this shell for makeinitrd. The shell will take the old fstab(usually is /etc/fstab) to a temp place, then change the UUID to right device name in the temp fstab. The makeinitrd shell should use the temp fstab file to make the initrd and stay the old fstab, after make initrd remove the temp fstab."
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echo""
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echo "ARGUMENT:
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[-h|--help] -- print the helped message
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<oldfstab> -- specify the path of the initial fstab.
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<tmpfstab> -- specify the temp path of a new fstab, the makeinitrd will use the temp fstab to make initrd."
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echo ""
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echo "RETURN VALUE:
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1 make temp fstab error
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0 make allright
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the log message will be print in $LOGDIR$LOGFILE"
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echo ""
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echo "EXAMPLE:
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If you want to according /etc/fstab to make a temp fstab file in /tmp named .fstab.tmp, you can write for this:"
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echo ""
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echo " mkTmpfstab.sh -f /etc/fstab -t /tmp/.fstab.tmp "
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echo "The /tmp/.fstab.tmp will be the argument of the option named --fstab of mkinitrd. If you use this shell please remember this."
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echo ""
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echo ""
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echo "Report bugs to <zrlang@linx-info.com>"
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}
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###########################################################################
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# main from here #
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###########################################################################
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if [ $1 == "--help" -o $1 == "-h" ];then
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usage
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exit 0
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elif [ $# -lt 4 ];then
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echo "need more arguments, please look at the helped message"
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exit 1
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fi
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#initial the log file
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if [ -d $LOGDIR ];then
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mkdir -p $LOGDIR
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touch $LOGDIR$LOGFILE
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fi
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NOWDATE=`date`
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echo $NOWDATE >>$LOGDIR$LOGFILE
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setArgument $@
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cpTmpfstab $PATHFROM $PATHTO
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mdfyTmpFstab $PATHTO
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echo "make temp fstab all right" >>$LOGDIR$LOGFILE
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# End of file
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@@ -128,7 +128,7 @@ setArgument(){
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testBeforeMkraid(){
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local i
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#test the "(3) mdX has exist" error
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mdadm -Q $RAIDNAME >>${LOGDIR}${LOGFILE} 2>>${LOGDIR}${LOGFILE}
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mdadm -D $RAIDNAME >>${LOGDIR}${LOGFILE} 2>>${LOGDIR}${LOGFILE}
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if [ $? == "0" ]; then
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ERRNO="3"
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return 1
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@@ -164,8 +164,7 @@ testBeforeMkraid(){
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# used"
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for i in $DEVICELIST
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do
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mdadm -E $i >>${LOGDIR}${LOGFILE} 2>>${LOGDIR}${LOGFILE}
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if [ $? == "0" ]; then
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if mdadm -Ds -v | grep -w $i ; then
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ERRNO="6"
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return 1
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fi
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@@ -29,5 +29,5 @@ if [ ! -d $CONDIR ]; then
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exit 1
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fi
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fi
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mdadm -Es -v > $CONDIR$CONFILE
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mdadm -Ds -v > $CONDIR$CONFILE
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