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

    Diff of /trunk/mkinitrd/mkinitrd.sh

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    revision 300 by niro, Sat Dec 3 19:52:07 2005 UTC revision 301 by niro, Mon Dec 5 22:45:33 2005 UTC
    # Line 1  Line 1 
    1  #!/bin/bash  #!/bin/bash
    2  # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd.sh,v 1.4 2005-12-03 19:52:07 niro Exp $  # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd.sh,v 1.5 2005-12-05 22:45:33 niro Exp $
    3    
    4  # mkinitrd  # mkinitrd
    5  #  #
    # Line 55  builtins="" Line 55  builtins=""
    55  modulefile=/etc/modules.conf  modulefile=/etc/modules.conf
    56  rc=0  rc=0
    57    
    58  IMAGESIZE=8000  IMAGESIZE=4000
    59  PRESCSIMODS="sd_mod"  PRESCSIMODS="sd_mod"
    60  fstab="/etc/fstab"  fstab="/etc/fstab"
    61    
    # Line 391  while [ $# -gt 0 ]; do Line 391  while [ $# -gt 0 ]; do
    391   --allow-missing) allowmissing=yes ;;   --allow-missing) allowmissing=yes ;;
    392   --noresume) noresume=1 ;;   --noresume) noresume=1 ;;
    393   --help) usage -n ;;   --help) usage -n ;;
    394     --initramfs) IMAGE_TYPE=initramfs ;;
    395     --loopback) IMAGE_TYPE=loopback ;;
    396   *)   *)
    397   if [ -z "${target}" ]   if [ -z "${target}" ]
    398   then   then
    # Line 407  while [ $# -gt 0 ]; do Line 409  while [ $# -gt 0 ]; do
    409   shift   shift
    410  done  done
    411    
    412    # enforce loopback method as default
    413    [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=loopback
    414    
    415  if [ -z "${target}" -o -z "${kernel}" ]  if [ -z "${target}" -o -z "${kernel}" ]
    416  then  then
    417   usage   usage
    # Line 445  fi Line 450  fi
    450  ##############################  ##############################
    451  ####### get modules ##########  ####### get modules ##########
    452    
    453  echo "Creating initramfs"  echo "Creating ${IMAGE_TYPE} initrd image"
    454  modulefile=/etc/modprobe.conf  modulefile=/etc/modprobe.conf
    455    
    456  for n in ${PREMODS}  for n in ${PREMODS}
    # Line 645  echo "Using modules:${MODULES}" Line 650  echo "Using modules:${MODULES}"
    650  install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sys,sysroot} || die  install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sys,sysroot} || die
    651    
    652  # install busybox  # install busybox
    653    echo "$(which busybox.mkinitrd)"
    654  install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die  install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die
    655  for i in '[' ash basename cat cut chroot clear cp dirname echo env false find \  for i in '[' ash basename cat cut chroot clear cp dirname echo env false find \
    656   grep gunzip gzip ln ls loadkmap losetup mkdir mknod modprobe more mount mv \   grep gunzip gzip init ln ls loadkmap losetup mkdir mknod modprobe more mount mv \
    657   ps pwd rm rmdir sh sleep test touch true umount uname \   pivot_root ps pwd rm rmdir sh sleep test touch true umount uname \
    658   xargs yes chmod chown   xargs yes chmod chown
    659  do  do
    660   # static links   # static links
    # Line 656  do Line 662  do
    662  done  done
    663    
    664  # install run-init  # install run-init
    665    echo "$(which run-init.mkinitrd)"
    666  install -m0755 $(which run-init.mkinitrd) ${DEST}/bin/run-init || die  install -m0755 $(which run-init.mkinitrd) ${DEST}/bin/run-init || die
    667    
    668  # install insmod.static  # install insmod.static
    669    echo "$(which insmod.static)"
    670  install -m0755 $(which insmod.static) ${DEST}/bin/insmod || die  install -m0755 $(which insmod.static) ${DEST}/bin/insmod || die
    671    
    672  # install udev  # install udev
    # Line 702  add_initrd '#!/bin/sh' Line 710  add_initrd '#!/bin/sh'
    710  add_initrd 'mount -t proc proc /proc'  add_initrd 'mount -t proc proc /proc'
    711  add_initrd 'mount -t sysfs sysfs /sys'  add_initrd 'mount -t sysfs sysfs /sys'
    712    
    713    [[ ${IMAGE_TYPE} = loopback ]] && add_initrd 'mount -t ramfs -o remount,rw /dev/ram /'
    714    
    715  add_initrd 'echo "-- Creating inital device nodes ..."'  add_initrd 'echo "-- Creating inital device nodes ..."'
    716  add_initrd 'mount -o mode=0755 -t tmpfs udev /dev'  add_initrd 'mount -o mode=0755 -t tmpfs udev /dev'
    717  add_initrd 'mkdir /dev/pts'  add_initrd 'mkdir /dev/pts'
    # Line 824  fi Line 834  fi
    834    
    835  add_initrd 'echo "-- Mounting sysroot ..."'  add_initrd 'echo "-- Mounting sysroot ..."'
    836  add_initrd '. /etc/rootdev'  add_initrd '. /etc/rootdev'
    837  add_initrd 'mknod ${device} b ${major} ${minor}'  add_initrd '[ ! -e ${device} ] && mknod ${device} b ${major} ${minor}'
    838  add_initrd 'echo "${device} /sysroot ${rootfs} defaults,ro 0 0" > /etc/fstab'  add_initrd 'echo "${device} /sysroot ${rootfs} defaults,ro 0 0" > /etc/fstab'
    839  add_initrd 'mount /sysroot'  add_initrd 'mount /sysroot'
    840    
    841  add_initrd 'echo "-- Switching to real sysroot ..."'  add_initrd 'echo "-- Switching to real sysroot ..."'
    842  add_initrd 'umount /sys'  add_initrd 'umount /sys'
    843  add_initrd 'umount /proc'  add_initrd 'umount /proc'
    844  add_initrd 'exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console'  
    845    [[ ${IMAGE_TYPE} = initramfs ]] && add_initrd 'exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console'
    846    if [[ ${IMAGE_TYPE} = loopback ]]
    847    then
    848     add_initrd 'cd /sysroot'
    849     add_initrd 'pivot_root . initrd'
    850     add_initrd "exec /sbin/chroot . sh -c 'umount -n /initrd >/dev/null 2>&1;exec -a init.new /sbin/init'</dev/console >/dev/console 2>&1"
    851    fi
    852    
    853  chmod +x ${DEST}/init || die  chmod +x ${DEST}/init || die
    854    
    # Line 856  done Line 873  done
    873    
    874  # create the image  # create the image
    875  echo "Creating initrd image '${target}' ..."  echo "Creating initrd image '${target}' ..."
    876  (cd "${DEST}" ; find . | cpio --quiet --dereference -o -H newc | gzip -9 >${IMAGE})  if [[ ${IMAGE_TYPE} = initramfs ]]
    877  cat ${IMAGE} > ${target} || die  then
    878     (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE})
    879     cat ${IMAGE} > ${target} || die
    880    fi
    881    
    882    if [[ ${IMAGE_TYPE} = loopback ]]
    883    then
    884     MOUNTTMP="$(mktemp -d)"
    885    
    886     # create ext2 img
    887     dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die
    888     mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die
    889     mount -o loop ${IMAGE} ${MOUNTTMP} || die
    890     mv ${DEST}/* ${MOUNTTMP} || die
    891     umount ${MOUNTTMP} || die
    892     gzip -9 ${IMAGE} || die
    893     cat ${IMAGE}.gz > ${target} || die
    894     [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP}
    895    
    896     # create inird dir for pivot_root
    897     [ ! -d /initrd ] && { install -d /initrd || die; }
    898    fi
    899    
    900  # clean up  # clean up
    901  [ -d ${DEST} ] && rm -rf ${DEST}  [ -d ${DEST} ] && rm -rf ${DEST}
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