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    • /[magellan-source]/trunk/mkinitrd-magellan/livecd/linuxrc.sh

    Diff of /trunk/mkinitrd-magellan/livecd/linuxrc.sh

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    revision 673 by niro, Fri Jan 25 11:12:52 2008 UTC revision 1296 by niro, Fri May 27 14:42:36 2011 UTC
    # Line 1  Line 1 
    1  #!/bin/sh  #!/bin/sh
    2  # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/livecd/linuxrc.sh,v 1.5 2008-01-25 11:12:52 niro Exp $  # $Id$
    3    
    4  # loads given kernel modules  # loads given kernel modules
    5  load_kernel_modules()  load_kernel_modules()
    # Line 55  check_drives() Line 55  check_drives()
    55  ## some defaults ##  ## some defaults ##
    56  DOSCSI=no  DOSCSI=no
    57  DOUSB=no  DOUSB=no
    58  DOSATA=no  DOSATA=yes
    59  DOFB=no  DOFB=no
    60  DOPATA=no  DOPATA=yes
    61  FORCED_ROOTFS=""  FORCED_ROOTFS=""
    62    INITEXEC="/sbin/init"
    63    BREAK_ENABLED=no
    64    UNIONFS=no
    65    UNIONFS_FILE=""
    66    CLOOPMOUNTDIR="/sysroot/mnt/cloop"
    67    
    68  ## starts here ##  ## starts here ##
    69    
    70  # mount essential filesystems  # mount essential filesystems
    71  mount -t proc proc /proc  mount -t proc proc /proc
    72  mount -t sysfs sysfs /sys  mount -t sysfs sysfs /sys
    73    mount -t tmpfs tmpfs /dev -o rw,mode=0644,size=1024
    74    
    75    # install all busybox applets
    76    busybox --install -s
    77    
    78  # silencio  # silencio
    79  echo 0 > /proc/sys/kernel/printk  echo 0 > /proc/sys/kernel/printk
    # Line 73  echo 0 > /proc/sys/kernel/printk Line 82  echo 0 > /proc/sys/kernel/printk
    82  for i in $(cat /proc/cmdline)  for i in $(cat /proc/cmdline)
    83  do  do
    84   case "${i}" in   case "${i}" in
    85   doscsi)   doscsi) DOSCSI=yes;;
    86   DOSCSI=yes   noscsi) DOSCSI=no;;
    87   ;;   dousb) DOUSB=yes;;
    88   dousb)   nousb) DOUSB=no;;
    89   DOUSB=yes   dosata) DOSATA=yes ;;
    90   ;;   nosata) DOSATA=no ;;
    91   dosata)   dofb) DOFB=yes;;
    92   DOSATA=yes   nofb) DOFB=no;;
    93   ;;   dopata) DOPATA=yes;;
    94   dofb)   nopata) DOPATA=no;;
    95   DOFB=yes   rootfs=*) FORCED_ROOTFS="${i#*=}";;
    96   ;;   init=*) INITEXEC="${i#*=}";;
    97   dopata)   break) BREAK_ENABLED=yes ;;
    98   DOPATA=yes   unionfs) UNIONFS=yes;;
    99   ;;   unionfs_file=*) UNIONFS_FILE="${i#*=}";;
      rootfs=*)  
      FORCED_ROOTFS="${i#*=}"  
      ;;  
    100   esac   esac
    101  done  done
    102    
    # Line 102  load_kernel_modules "generic" Line 108  load_kernel_modules "generic"
    108  [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb"  [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb"
    109  [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata"  [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata"
    110    
    111    # populate dev
    112    mdev -s
    113    # handle hotplug events properly
    114    echo /sbin/mdev > /proc/sys/kernel/hotplug
    115    
    116  # create newroot mount point  # create newroot mount point
    117  mkdir -p /sysroot  mkdir -p /sysroot
    118  # fake a new filesystem (also needed with an initramfs!!)  # fake a new filesystem (also needed with an initramfs!!)
    # Line 127  echo "Searching for a boot device ..." Line 138  echo "Searching for a boot device ..."
    138  # searching usbstick  # searching usbstick
    139  if [ "${DOUSB}" = "yes" ]; then  if [ "${DOUSB}" = "yes" ]; then
    140   ROOTFS="vfat"   ROOTFS="vfat"
    141   [[ -n ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"   [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
    142   check_drives "/dev/sd*" "${ROOTFS}"   check_drives "/dev/sd*" "${ROOTFS}"
    143   check_drives "/dev/sg*" "${ROOTFS}"   check_drives "/dev/sg*" "${ROOTFS}"
    144  fi  fi
    145    
    146  # for cdrom_device in $CDROM_LIST (ide)  # for cdrom_device in $CDROM_LIST (ide)
    147  ROOTFS="iso9660"  ROOTFS="iso9660"
    148  [[ -n ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"  [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
    149  check_drives "/dev/cdroms/*" "${ROOTFS}"  check_drives "/dev/cdroms/*" "${ROOTFS}"
    150  check_drives "/dev/hd*" "${ROOTFS}"  check_drives "/dev/hd*" "${ROOTFS}"
    151    
    152  # scsi cdroms  # scsi cdroms
    153  if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then  if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then
    154   ROOTFS="iso9660"   ROOTFS="iso9660"
    155   [[ -n ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"   [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
    156   check_drives "/dev/sr*" "${ROOTFS}"   check_drives "/dev/sr*" "${ROOTFS}"
    157   check_drives "/dev/sg*" "${ROOTFS}"   check_drives "/dev/sg*" "${ROOTFS}"
    158   check_drives "/dev/scd*" "${ROOTFS}"   check_drives "/dev/scd*" "${ROOTFS}"
    # Line 165  else Line 176  else
    176   echo -e "Mounting squashfs system image ..."   echo -e "Mounting squashfs system image ..."
    177   echo   echo
    178   [ ! -e /dev/loop0 ] && mknod /dev/loop0 b 7 0   [ ! -e /dev/loop0 ] && mknod /dev/loop0 b 7 0
    179   mount -o loop,ro -t squashfs /sysroot/mnt/cdrom/livecdrootfs.sqsh /sysroot/mnt/cloop   mount -o loop,ro -t squashfs /sysroot/mnt/cdrom/livecdrootfs.sqsh "${CLOOPMOUNTDIR}"
    180    
    181     # mount unionfs if enabled
    182     if [[ ${UNIONFS} = yes ]]
    183     then
    184     echo -e "Mounting writeable cdbuffer (unionfs) ..."
    185    
    186     # default setting
    187     CLOOPMOUNTDIR="/sysroot/mnt/unionfs"
    188     [[ -z ${UNIONFS_FILE} ]] && UNIONFS_FILE="/sysroot/mnt/cdrom/unionfs"
    189    
    190     [[ ! -d /sysroot/mnt/unionfs ]] && install -d /sysroot/mnt/unionfs
    191     mount -t unionfs dirs=${UNIONFS_FILE}=rw:/sysroot/mnt/cloop=ro ${CLOOPMOUNTDIR}
    192     fi
    193    
    194   # symlinking cloop rootfs to /mnt as newroot   # symlinking cloop rootfs to /mnt as newroot
    195   cd /sysroot   cd /sysroot
    196    
    197   for x in bin sbin lib lib64 boot usr opt   for x in bin sbin lib lib64 boot usr opt
    198   do   do
    199   [ -d mnt/cloop/${x} ] && ln -s mnt/cloop/${x} ${x}   [ -d ${CLOOPMOUNTDIR/\/sysroot\//}/${x} ] && ln -s ${CLOOPMOUNTDIR/\/sysroot\//}/${x} ${x}
    200   done   done
    201   mkdir -p initrd proc tmp sys var/tmp dev media   mkdir -p initrd proc tmp sys var/tmp dev media
    202    
    203   # make /sysroot/dev/console & /mnt/dev/null   # make /sysroot/dev/console & /mnt/dev/null
    204   [ ! -e /sysroot/dev/console ] && mknod -m 600 /sysroot/dev/console c 5 1   [ ! -e /sysroot/dev/console ] && mknod -m 600 /sysroot/dev/console c 5 1
    205   [ ! -e /sysroot/dev/null ] && mknod -m 666 /sysroot/dev/null c 1 3   [ ! -e /sysroot/dev/null ] && mknod -m 666 /sysroot/dev/null c 1 3
    206     # only to be safe and to have a log channel
    207     [ ! -e /sysroot/dev/tty ] && mknod /sysroot/dev/tty c 5 0
    208     # busybox needs this one
    209     [ ! -e /sysroot/dev/tty5 ] && mknod /sysroot/dev/tty5 c 4 5
    210    
    211   (cd /sysroot/mnt/cloop; cp -a etc root home var /sysroot)   (cd ${CLOOPMOUNTDIR}; cp -a etc root home var /sysroot)
    212    
    213   # ensure the right permissions   # ensure the right permissions
    214   chmod 1777 /sysroot/tmp   chmod 1777 /sysroot/tmp
    # Line 189  fi Line 217  fi
    217    
    218  cd /  cd /
    219    
    220    # unset hotplug event-manager
    221    echo > /proc/sys/kernel/hotplug
    222    
    223  # de-silencio  # de-silencio
    224  echo 3 > /proc/sys/kernel/printk  echo 3 > /proc/sys/kernel/printk
    225    
    226    if [[ ${BREAK_ENABLED} = yes ]]
    227    then
    228     echo "-- Break requested, type 'exit' to resume operation ..."
    229     ash
    230    fi
    231    
    232  echo "-- Switching to real sysroot ..."  echo "-- Switching to real sysroot ..."
    233    umount /dev
    234  umount /sys  umount /sys
    235  umount /proc  umount /proc
    236    
    237  exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console  exec run-init /sysroot ${INITEXEC} $@ </sysroot/dev/console >/sysroot/dev/console
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