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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 605 by niro, Sat Nov 10 19:56:21 2007 UTC revision 1513 by niro, Wed Sep 7 17:42:43 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 1.2 2007-11-10 19:56:21 niro Exp $  # $Id$
    3    
    4  # loads given kernel modules  # loads given kernel modules
    5  load_kernel_modules()  load_kernel_modules()
    # Line 45  check_drives() Line 45  check_drives()
    45   then   then
    46   echo -e "Magellan boot device found."   echo -e "Magellan boot device found."
    47   BOOT_DEVICE="${dev}"   BOOT_DEVICE="${dev}"
    48   FSTYPE=${fs}   FSTYPE="${fs}"
    49   break   break
    50   fi   fi
    51   fi   fi
    # 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  NOPATA=no  DOFB=no
    60    DOPATA=yes
    61    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 71  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 "${i}" in
    85   doscsi)   doscsi) DOSCSI=yes;;
    86   DOSCSI=yes   noscsi) DOSCSI=no;;
    87   ;;   dousb) DOUSB=yes;;
    88   dousb)   nousb) DOUSB=no;;
    89   DOUSB=yes   dosata) DOSATA=yes ;;
    90   ;;   nosata) DOSATA=no ;;
    91   dosata)   dofb) DOFB=yes;;
    92   DOSATA=yes   nofb) DOFB=no;;
    93   ;;   dopata) DOPATA=yes;;
    94   nopata)   nopata) DOPATA=no;;
    95   NOPATA=yes   rootfs=*) FORCED_ROOTFS="${i#*=}";;
    96   ;;   init=*) INITEXEC="${i#*=}";;
    97     break) BREAK_ENABLED=yes ;;
    98     unionfs) UNIONFS=yes;;
    99     unionfs_file=*) UNIONFS_FILE="${i#*=}";;
    100     rootdelay=*) ROOTDELAY="${i#*=}";;
    101   esac   esac
    102  done  done
    103    
    104  # now load all needed modules  # now load all needed modules
    105    [ "${DOFB}" = "yes" ] && load_kernel_modules "framebuffer"
    106  load_kernel_modules "generic"  load_kernel_modules "generic"
    107  [ "${NOPATA}" != "yes" ] && load_kernel_modules "pata"  [ "${DOPATA}" = "yes" ] && load_kernel_modules "pata"
    108  [ "${DOSCSI}" = "yes" ] && load_kernel_modules "scsi"  [ "${DOSCSI}" = "yes" ] && load_kernel_modules "scsi"
    109  [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb"  [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb"
    110  [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata"  [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata"
    111    
    112    # populate dev
    113    mdev -s
    114    # handle hotplug events properly
    115    echo /sbin/mdev > /proc/sys/kernel/hotplug
    116    
    117  # create newroot mount point  # create newroot mount point
    118  mkdir -p /sysroot  mkdir -p /sysroot
    119  # fake a new filesystem (also needed with an initramfs!!)  # fake a new filesystem (also needed with an initramfs!!)
    # Line 109  if [ "${DOUSB}" = "yes" ]; then Line 130  if [ "${DOUSB}" = "yes" ]; then
    130   sleep 8   sleep 8
    131  fi  fi
    132    
    133    # respect rootdelay kernel param
    134    if [ ! -z "${ROOTDELAY}" ]; then
    135     echo "-- Requested a rootdelay of ${ROOTDELAY} seconds ..."
    136     sleep ${ROOTDELAY}
    137    fi
    138    
    139  # searching cdrom with cdid  # searching cdrom with cdid
    140  BOOT_DEVICE=""  BOOT_DEVICE=""
    141  FSTYPE=""  FSTYPE=""
    # Line 117  echo "Searching for a boot device ..." Line 144  echo "Searching for a boot device ..."
    144    
    145  # searching usbstick  # searching usbstick
    146  if [ "${DOUSB}" = "yes" ]; then  if [ "${DOUSB}" = "yes" ]; then
    147   check_drives "/dev/sd*" "vfat"   ROOTFS="vfat"
    148   check_drives "/dev/sg*" "vfat"   [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
    149     check_drives "/dev/sd*" "${ROOTFS}"
    150     check_drives "/dev/sg*" "${ROOTFS}"
    151  fi  fi
    152    
    153  # for cdrom_device in $CDROM_LIST (ide)  # for cdrom_device in $CDROM_LIST (ide)
    154  check_drives "/dev/cdroms/*" iso9660  ROOTFS="iso9660"
    155  check_drives "/dev/hd*" iso9660  [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
    156    check_drives "/dev/cdroms/*" "${ROOTFS}"
    157    check_drives "/dev/hd*" "${ROOTFS}"
    158    
    159  # scsi cdroms  # scsi cdroms
    160  if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then  if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then
    161   check_drives "/dev/sr*" iso9660   ROOTFS="iso9660"
    162   check_drives "/dev/sg*" iso9660   [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
    163   check_drives "/dev/scd*" iso9660   check_drives "/dev/sr*" "${ROOTFS}"
    164     check_drives "/dev/sg*" "${ROOTFS}"
    165     check_drives "/dev/scd*" "${ROOTFS}"
    166  fi  fi
    167    
    168  # mount our rootfs from cdrom  # mount our rootfs from cdrom
    # Line 150  else Line 183  else
    183   echo -e "Mounting squashfs system image ..."   echo -e "Mounting squashfs system image ..."
    184   echo   echo
    185   [ ! -e /dev/loop0 ] && mknod /dev/loop0 b 7 0   [ ! -e /dev/loop0 ] && mknod /dev/loop0 b 7 0
    186   mount -o loop,ro -t squashfs /sysroot/mnt/cdrom/livecdrootfs.sqsh /sysroot/mnt/cloop   mount -o loop,ro -t squashfs /sysroot/mnt/cdrom/livecdrootfs.sqsh "${CLOOPMOUNTDIR}"
    187    
    188     # mount unionfs if enabled
    189     if [[ ${UNIONFS} = yes ]]
    190     then
    191     echo -e "Mounting writeable cdbuffer (unionfs) ..."
    192    
    193     # default setting
    194     CLOOPMOUNTDIR="/sysroot/mnt/unionfs"
    195     [[ -z ${UNIONFS_FILE} ]] && UNIONFS_FILE="/sysroot/mnt/cdrom/unionfs"
    196    
    197     [[ ! -d /sysroot/mnt/unionfs ]] && install -d /sysroot/mnt/unionfs
    198     mount -t unionfs dirs=${UNIONFS_FILE}=rw:/sysroot/mnt/cloop=ro ${CLOOPMOUNTDIR}
    199     fi
    200    
    201   # symlinking cloop rootfs to /mnt as newroot   # symlinking cloop rootfs to /mnt as newroot
    202   cd /sysroot   cd /sysroot
    203    
    204   for x in bin sbin lib lib64 boot usr opt   for x in bin sbin lib lib64 boot usr opt
    205   do   do
    206   [ -d mnt/cloop/${x} ] && ln -s mnt/cloop/${x} ${x}   [ -d ${CLOOPMOUNTDIR/\/sysroot\//}/${x} ] && ln -s ${CLOOPMOUNTDIR/\/sysroot\//}/${x} ${x}
    207   done   done
    208   mkdir -p initrd proc tmp sys var/tmp dev media   mkdir -p initrd proc tmp sys var/tmp dev media
    209    
    210   # make /sysroot/dev/console & /mnt/dev/null   # make /sysroot/dev/console & /mnt/dev/null
    211   [ ! -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
    212   [ ! -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
    213     # only to be safe and to have a log channel
    214     [ ! -e /sysroot/dev/tty ] && mknod /sysroot/dev/tty c 5 0
    215     # busybox needs this one
    216     [ ! -e /sysroot/dev/tty5 ] && mknod /sysroot/dev/tty5 c 4 5
    217    
    218   (cd /sysroot/mnt/cloop; cp -a etc root home var /sysroot)   (cd ${CLOOPMOUNTDIR}; cp -a etc root home var /sysroot)
    219    
    220     # ensure that /sysroot/linurc exists
    221     [ ! -e /sysroot/linuxrc ] && ln -snf ${INITEXEC} /sysroot/linuxrc
    222    
    223   # ensure the right permissions   # ensure the right permissions
    224   chmod 1777 /sysroot/tmp   chmod 1777 /sysroot/tmp
    # Line 174  fi Line 227  fi
    227    
    228  cd /  cd /
    229    
    230    # unset hotplug event-manager
    231    echo > /proc/sys/kernel/hotplug
    232    
    233  # de-silencio  # de-silencio
    234  echo 3 > /proc/sys/kernel/printk  echo 3 > /proc/sys/kernel/printk
    235    
    236    if [[ ${BREAK_ENABLED} = yes ]]
    237    then
    238     echo "-- Break requested, type 'exit' to resume operation ..."
    239     ash
    240    fi
    241    
    242  echo "-- Switching to real sysroot ..."  echo "-- Switching to real sysroot ..."
    243    umount /dev
    244  umount /sys  umount /sys
    245  umount /proc  umount /proc
    246    
    247  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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