WebSVN – livecd – Diff – /trunk/customize/livecd-install

 #!/bin/bash
+#
 ###############################################################
+#
 # Installes the LiveCD on local harddisk
+#
 # Boot LiveCD and run this script as root
+#
 # Urs Beyerle, PSI
+#
 ###############################################################
 ###############################################################
 # Definitions
 ###############################################################
 # files which should be restored from .ori files
 FILES_RESTORE="/etc/init.d/netfs \
            /etc/init.d/autofs \
            /etc/init.d/halt \
            /etc/init.d/network
            /etc/init.d/functions \
            /etc/rc.d/rc.sysinit \
            /etc/sysconfig/afs \
            /etc/motd \
            /etc/redhat-release \
 	   /etc/rc.d/rc.local \
            /etc/rc.d/rc.sysinit"
 LIVECD_INIT_SCRIPTS="runfirst \
                     runveryfirst \
                     runlast \
                     kudzu-auto"
 # Main directories which should be not be copied
 DIR_NOT_COPY="/proc \
               /dev \
               /livecd \
               /boot \
               /afs \
               /sys \
               /mnt \
               /media"
 # Mount point of the new SL system
 NEW=/mnt/harddisk
+# Name of the script
 SCRIPTNAME=$( basename $0 )
 ###############################################################
 # Functions
 ###############################################################
 function usage() {
    ## Usage
    # ----------------------------------------------------------
    cat <<EOF
+  $SCRIPTNAME [OPTIONS] -mbr [DEVICE] [PARTITION]
-   $SCRIPTNAME [OPTIONS] -mbr [DEVICE] [PARTITION]
-   Installes LiveCD on PARTITION and the boot loader grub
+    Installes LiveCD on PARTITION and the boot loader grub
-   into the Master Boot Record (MBR) of DEVICE.
+    into the Master Boot Record (MBR) of DEVICE.
-   OPTIONS:
+  OPTIONS:
-    -h                  print this screen
+    -h   --help         print this screen
-    -swap [partition]  	use [partition] as swap
+    -swap [partition]   use [partition] as swap
     -nogrub             do not install grub (leave MBR untouched)
-    -floppy             need, if grub should be isntalled on a floopy
+    -floppy             needed, if grub should be installed on floppy
     -y                  answer all questions with yes
+  Example:
+  $SCRIPTNAME -swap /dev/sda3 -mbr /dev/sda /dev/sda2
+    Will install LiveCD on /dev/sda2 (= second partition on
+    first SATA disk). All data on /dev/sda2 will be deleted.
+    /dev/sda3 has to be a Linux Swap partion. GRUB will be
+    installed in the MBR of /dev/sda (= first SATA disk).
 EOF
+}
+function exit_now() {
+    local exitcode=$1
+    umount $INSTALL_PART 2>/dev/null
+    exit $exitcode
+}
 ###############################################################
 # Main
 ###############################################################
 ### are we root?
 ### -----------------------------------------------------------
 if [ "$( whoami )" != "root" ]; then
     echo "Please run this script as root."
-    # exit 1
+    exit_now 1
 fi
 ### read options from command-line
 ### -----------------------------------------------------------
 while [ $# -gt 0 ]; do
     case "$1" in
        -h)
+            usage; exit_now;;
+       --help)
-            usage; exit;;
+            usage; exit_now;;
        -swap)
             shift; SWAP_PART=$1; shift; continue;;
        -mbr)
             shift; MBR_DEV=$1; shift; continue;;
        -nogrub)
             NOGRUB=$1; shift; continue;;
        -floppy)
             FLOPPY=$1; shift; continue;;
        -y)
             YES=$1; shift; continue;;
        *)
             INSTALL_PART=$1; break;;
     esac
 done
 echo
 ### test if MBR_DEV is given
 ### -----------------------------------------------------------
 if [ ! $NOGRUB ]; then
     if [ ! $MBR_DEV ]; then
 	echo "No MBR device defined."
 	echo "Please see '$SCRIPTNAME -h'."; echo
-	exit 1
+	exit_now 1
     fi
 fi
-### test if $INSTALL_PART defined and exists
+### test if $INSTALL_PART is defined and exists
 ### -----------------------------------------------------------
 if [ ! $INSTALL_PART ]; then
     echo "No partition defined for installation"
     echo "Please see '$SCRIPTNAME -h'."; echo
-    exit 1
+    exit_now 1
 fi
 ### test if $INSTALL_PART exists
 ### -----------------------------------------------------------
 fdisk -l | cut -d" " -f1 | grep -q "^${INSTALL_PART}$"
 if [ "$?" != "0" ]; then
     echo "Partition $INSTALL_PART not found! (see 'disk -l')"; echo
-    exit 1
+    exit_now 1
 fi
 ### set $INSTALL_DEV (eg. /dev/sda)
 ### -----------------------------------------------------------
 INSTALL_DEV=$( echo "$INSTALL_PART" | sed -e 's%\([sh]d[a-z]\)[0-9]*$%\1%' )
 INSTALL_PART_NR=$( echo "$INSTALL_PART" | sed -e 's%.*/[sh]d[a-z]\([0-9]*\)$%\1%' )
 ### test if $SWAP_PART exists
 ### -----------------------------------------------------------
 if [ $SWAP_PART ]; then
     fdisk -l | cut -d" " -f1 | grep -q "^${SWAP_PART}$"
     if [ "$?" != "0" ]; then
 	echo "Swap partition $SWAP_PART not found! (see 'disk -l')"; echo
-	exit 1
+	exit_now 1
     fi
     fdisk -l | grep "Linux swap" | cut -d" " -f1 | grep -q "^${SWAP_PART}$"
     if [ "$?" != "0" ]; then
 	echo "Partition $SWAP_PART is not a Linux swap partition! (see 'disk -l')"; echo
-	exit 1
+	exit_now 1
     fi
 fi
 ### print warning
 ### -----------------------------------------------------------
 echo "-----------------------------------------------------------"
 echo "   LiveCD will be installed on partition $INSTALL_PART."
 [ "$SWAP_PART" ] && echo " Partition $SWAP_PART will be used as swap partition."
 echo
 [ ! $NOGRUB ] && echo " !! Master Boot Record of $MBR_DEV will be overwritten !!"
 echo "     !! All data on $INSTALL_PART will be lost !!"
 echo "-----------------------------------------------------------"
 echo
 ### continue ?
 ### -----------------------------------------------------------
 if [ ! $YES ]; then
     echo -n "Continue (y/N)? "
     read key
     echo
-    [ "$key" != "y" ] && exit 0
+    [ "$key" != "y" ] && exit_now 0
 fi
 echo
+### Backup MBR
+### -----------------------------------------------------------
+### to do !!!!!!!!!!
+###
 ### format $INSTALL_PART
 ### -----------------------------------------------------------
 echo -n "Format $INSTALL_PART, please wait ... "
-mkfs.ext3 -q $INSTALL_PART || exit 1
+mkfs.ext3 -q $INSTALL_PART || exit_now 1
 echo "done."; echo
 ### mount $INSTALL_PART
 ### -----------------------------------------------------------
 echo -n "Try to mount $INSTALL_PART to $NEW ... "
 mkdir -p $NEW
-mount $INSTALL_PART $NEW || exit 1
+mount $INSTALL_PART $NEW || exit_now 1
 echo "done."; echo
 ### copy root dirs
 ### -----------------------------------------------------------
 echo "Copy Live System to $INSTALL_PART:"
 root_dirs=$( ls / )
 for dir in $root_dirs; do
     # check if dir is not in $DIR_NOT_COPY
     do_not_copy=""
     for not_dir in $DIR_NOT_COPY; do
 	if [ "$not_dir" = "/$dir" ]; then
 	    do_not_copy="yes"
 	    break
 	fi
     done
     # do not copy links
     [ -L /$dir ] && do_not_copy="yes"
+    fail=""
     if [ ! $do_not_copy ]; then
 	echo -n "  * Copy  /$dir ... "
-	cp -a /$dir $NEW
+	cp -a /$dir $NEW || fail=true
 	echo "done."
     fi
 done
 echo
+if [ $fail ]; then
+    echo "ERROR: Not everything was copied to $INSTALL_PART"
+    exit_now 1
+fi
 ### move /usr/opt back to /opt
 ### -----------------------------------------------------------
 if [ -d $NEW/usr/opt ]; then
     echo -n "Move /opt back ... "
     mv $NEW/usr/opt $NEW/
     echo "done."; echo
 fi
 ### create dirs which were not copied
 ### -----------------------------------------------------------
 for dir in $DIR_NOT_COPY; do
     mkdir $NEW/$dir
 done
 rmdir $NEW/livecd $NEW/mnt
 ### copy back original files
 ### -----------------------------------------------------------
 echo -n "Restore original files ... "
 for file in $FILES_RESTORE; do
     [ -r $NEW/${file}.ori ] && cp -a $NEW/${file}.ori $NEW/${file}
 done
 echo "done."; echo
-### do some mounts for chroot $NEW
+### do some mounts for chroot $NEW (no more needed)
 ### -----------------------------------------------------------
-mount --bind /dev $NEW/dev
+# mount --bind /dev $NEW/dev
-mount --bind /sys $NEW/sys
+# mount --bind /sys $NEW/sys
-mount -t proc proc $NEW/proc
+# mount -t proc proc $NEW/proc
 ### install grub
 ### -----------------------------------------------------------
 echo "Run grub-install: "; echo
 mkdir -p $NEW/boot/grub
 if [ $FLOPPY ]; then
     grub-install --root-directory=$NEW $MBR_DEV
 else
     grub-install --no-floppy --root-directory=$NEW $MBR_DEV
 fi
 echo "done."; echo
 ### define kernel version
 ### -----------------------------------------------------------
 rpm --quiet -q kernel     && UP_installed=true
 rpm --quiet -q kernel-smp && SMP_installed=true
 [ $UP_installed ]  && KERNEL_VERSION=$( rpm -q --qf "%{V}-%{R}" kernel 2>/dev/null )
 [ $SMP_installed ] && KERNEL_VERSION=$( rpm -q --qf "%{V}-%{R}" kernel-smp  2>/dev/null )
 if [ ! $KERNEL_VERSION ]; then
     echo "ERROR: Kernel version could not be determined - installation failed"; echo
-    exit 1
+    exit_now 1
 fi
-[ $UP_installed ]   && echo "UP kernel found."
-[ $SMP_installed ]  && echo "SMP kernel found."
-echo
 ### convert dev syntax to grub syntax
 ### -----------------------------------------------------------
 device_map=$NEW/boot/grub/device.map
 GRUB_INSTALL_DEV=$( grep $INSTALL_DEV $device_map | awk '{ print $1 }' )
 GRUB_ROOT_PART=$( echo "$GRUB_INSTALL_DEV" | sed "s%)$%,`expr $INSTALL_PART_NR - 1`)%" )
 ### define active Windows partition -  to be fixed  !!!
 ### -----------------------------------------------------------
 WIN_installed=true
 GRUB_WIN_PART=(hd0,0)
 ### create grub.conf file
 ### -----------------------------------------------------------
-echo "Create grub.conf"
+echo "Create grub.conf:"
 cat > $NEW/boot/grub/grub.conf <<EOF
 # grub.conf generated by $SCRIPTNAME
 default=0
 timeout=5
 splashimage=$GRUB_ROOT_PART/boot/grub/splash.xpm.gz
 #hiddenmenu
 EOF
 if [ $UP_installed ]; then
-    echo "Add entry for UP kernel into grub.conf"
+    echo " Add entry for UP kernel into grub.conf"
     cat >> $NEW/boot/grub/grub.conf <<EOF
 title Scientific Linux (${KERNEL_VERSION})
         root $GRUB_ROOT_PART
 	kernel /boot/vmlinuz-$KERNEL_VERSION ro root=$INSTALL_PART
 	initrd /boot/initrd-$KERNEL_VERSION.img
 EOF
 fi
 if [ $SMP_installed ]; then
-    echo "Add entry for SMP kernel into grub.conf"
+    echo " Add entry for SMP kernel into grub.conf"
     cat >> $NEW/boot/grub/grub.conf <<EOF
 title Scientific Linux (${KERNEL_VERSION}smp)
         root $GRUB_ROOT_PART
 	kernel /boot/vmlinuz-${KERNEL_VERSION}smp ro root=$INSTALL_PART
 	initrd /boot/initrd-${KERNEL_VERSION}smp.img
 EOF
 fi
 if [ $WIN_installed ]; then
-    echo "Add entry for Windows into grub.conf"
+    echo " Add entry for Windows into grub.conf"
     cat >> $NEW/boot/grub/grub.conf <<EOF
 title Windows
         rootnoverify $GRUB_WIN_PART
         chainloader +1
 EOF
 fi
 chmod 600 $NEW/boot/grub/grub.conf
 ln -s ../boot/grub/grub.conf $NEW/etc/grub.conf
 ln -s ./grub.conf $NEW/boot/grub/menu.lst
 echo "done."; echo
 ### install kernel into /boot
 ### -----------------------------------------------------------
-echo "Install kernel(s)"
+echo "Install kernel(s) ..."
 [ -e /boot/vmlinuz ]      && BOOT_DIR=/boot
 [ -e /boot/boot/vmlinuz ] && BOOT_DIR=/boot/boot
 if [ ! $BOOT_DIR ]; then
     echo "ERROR: No kernel found - installation failed"; echo
-    exit 1
+    exit_now 1
 fi
 cp -a $BOOT_DIR/vmlinuz            $NEW/boot/vmlinuz-${KERNEL_VERSION}
 cp -a $BOOT_DIR/vmlinuzs           $NEW/boot/vmlinuz-${KERNEL_VERSION}smp  2>/dev/null
 cp -a $BOOT_DIR/System.map-*       $NEW/boot/
 cp -a $BOOT_DIR/config-*           $NEW/boot/
 cp -a $BOOT_DIR/grub/splash.xpm.gz $NEW/boot/grub/
 echo "done."; echo
-### make initrd
-### -----------------------------------------------------------
-echo "Create initrd(s)"
-if [ $UP_installed ]; then
-    chroot $NEW depmod -a
-    chroot $NEW \
-    livecd-mkinitrd $NEW/boot/initrd-${KERNEL_VERSION}.img ${KERNEL_VERSION}
-    if [ ! -e $NEW/boot/initrd-${KERNEL_VERSION}.img ]; then
-	echo "ERROR: Failed to create $NEW/boot/initrd-${KERNEL_VERSION}.img"
-	exit 1
-    fi
-fi
-if [ $SMP_installed ]; then
-    chroot $NEW depmod -a
-    chroot $NEW \
-    livecd-mkinitrd $NEW/boot/initrd-${KERNEL_VERSION}smp.img ${KERNEL_VERSION}smp
-    if [ ! -e $NEW/boot/initrd-${KERNEL_VERSION}smp.img ]; then
-	echo "ERROR: Failed to create $NEW/boot/initrd-${KERNEL_VERSION}smp.img"
-	exit 1
-    fi
-fi
-echo "done."; echo
 ### create /etc/fstab
 ### -----------------------------------------------------------
 cat > $NEW/etc/fstab <<EOF
 $INSTALL_PART         /                    ext3    defaults        1 1
 devpts            /dev/pts             devpts  gid=5,mode=620  0 0
 tmpfs             /dev/shm             tmpfs   defaults        0 0
 proc              /proc                proc    defaults        0 0
 sysfs             /sys                 sysfs   defaults        0 0
 EOF
 if [ $SWAP_PART ]; then
     echo "$SWAP_PART         swap                 swap    defaults        0 0" >> $NEW/etc/fstab
 fi
+### make initrd
+### (needs $NEW/etc/fstab to find correct modules for root filesystem !!)
+### -----------------------------------------------------------
+echo "Create initrd(s) ..."
+if [ $UP_installed ]; then
+    depmod -a ${KERNEL_VERSION}
+    livecd-mkinitrd --fstab=$NEW/etc/fstab \
+                    $NEW//boot/initrd-${KERNEL_VERSION}.img ${KERNEL_VERSION}
+    if [ ! -e $NEW/boot/initrd-${KERNEL_VERSION}.img ]; then
+	echo "ERROR: Failed to create $NEW/boot/initrd-${KERNEL_VERSION}.img"
+	exit_now 1
+    fi
+fi
+if [ $SMP_installed ]; then
+    depmod -a ${KERNEL_VERSION}smp
+    livecd-mkinitrd --fstab=$NEW/etc/fstab \
+                    $NEW/boot/initrd-${KERNEL_VERSION}smp.img ${KERNEL_VERSION}smp
+    if [ ! -e $NEW/boot/initrd-${KERNEL_VERSION}smp.img ]; then
+	echo "ERROR: Failed to create $NEW/boot/initrd-${KERNEL_VERSION}smp.img"
+	exit_now 1
+    fi
+fi
+echo "done."; echo
 ### remove LiveCD init.d scripts
 ### -----------------------------------------------------------
 for file in $LIVECD_INIT_SCRIPTS; do
     rm -f $NEW/etc/init.d/$file
     for n in 0 1 2 3 4 5 6; do
 	rm -f $NEW/etc/rc.d/rc${n}.d/*$file
     done
 done
 ### restore cronjobs
 ### -----------------------------------------------------------
 mv /etc/cron_backup/sysstat /etc/cron.d/ 2>/dev/null
 mv /etc/cron_backup/00-makewhatis.cron.weekly /etc/cron.weekly/00-makewhatis.cron 2>/dev/null
 mv /etc/cron_backup/* /etc/cron.daily/
 ### turn on kudzu again
 ### -----------------------------------------------------------
 chkconfig kudzu on
 ### umount $INSTALL_PART
 ### -----------------------------------------------------------
-umount $NEW/dev
-umount $NEW/sys
-umount $NEW/proc
 umount $INSTALL_PART

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