diff options
Diffstat (limited to 'mkinitramfs')
| -rwxr-xr-x | mkinitramfs | 176 |
1 files changed, 112 insertions, 64 deletions
diff --git a/mkinitramfs b/mkinitramfs index 3c59757..0bb7806 100755 --- a/mkinitramfs +++ b/mkinitramfs @@ -7,19 +7,23 @@ export PATH='/usr/bin:/sbin:/bin' keep="n" CONFDIR="/etc/initramfs-tools" verbose="n" -errors_to="2>/dev/null" -# BUSYBOXDIR="/usr/lib/initramfs-tools/bin/" -BUSYBOXDIR="/bin" +test -e /bin/busybox && BUSYBOXDIR=/bin +test -e /usr/lib/initramfs-tools/bin/busybox && BUSYBOXDIR=/usr/lib/initramfs-tools/bin +export BUSYBOXDIR -OPTIONS=`getopt -o d:ko:r:v --long supported-host-version:,supported-target-version: -n "$0" -- "$@"` +OPTIONS=`getopt -o c:d:ko:r:v -n "$0" -- "$@"` # Check for non-GNU getopt -if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi +if [ $? != 0 ] ; then echo "W: non-GNU getopt" >&2 ; exit 1 ; fi eval set -- "$OPTIONS" while true; do case "$1" in + -c) + compress="$2" + shift 2 + ;; -d) CONFDIR="$2" shift 2 @@ -44,14 +48,6 @@ while true; do verbose="y" shift ;; - --supported-host-version) - supported_host_version="$2" - shift 2 - ;; - --supported-target-version) - supported_target_version="$2" - shift 2 - ;; --) shift break @@ -63,21 +59,6 @@ while true; do esac done -# FIXME: remove after Lenny (needed for Etch linux-images) -if [ -n "$supported_host_version" ] || [ -n "$supported_target_version" ]; then - if [ -n "$supported_host_version" ]; then - host_upstream_version="${supported_host_version%%-*}" - fi - if [ -n "$supported_target_version" ]; then - target_upstream_version="${supported_target_version%%-*}" - if dpkg --compare-versions "$target_upstream_version" lt "2.6.12"; then - exit 2 - fi - fi - echo "Depreciation warning: use ramdisk=mkinitramfs-kpkg." - exit 0 -fi - # For dependency ordered mkinitramfs hook scripts. . /usr/share/initramfs-tools/scripts/functions . /usr/share/initramfs-tools/hook-functions @@ -85,11 +66,11 @@ fi . "${CONFDIR}/initramfs.conf" EXTRA_CONF='' for i in /usr/share/initramfs-tools/conf.d/* ${CONFDIR}/conf.d/*; do - EXTRA_CONF="${EXTRA_CONF} $(basename $i \ + [ -e $i ] && EXTRA_CONF="${EXTRA_CONF} $(basename $i \ | grep '^[[:alnum:]][[:alnum:]\._-]*$' | grep -v '\.dpkg-.*$')"; done # FIXME: deprecated those settings on mkinitramfs run -# these conf dirs are for boot scripts and land on initramfs +# these conf dirs are for boot scripts and land on initramfs for i in ${EXTRA_CONF}; do if [ -e ${CONFDIR}/conf.d/${i} ]; then . ${CONFDIR}/conf.d/${i} @@ -105,7 +86,7 @@ for i in /usr/share/initramfs-tools/conf-hooks.d/*; do fi done -if [ -n "${UMASK}" ]; then +if [ -n "${UMASK:-}" ]; then umask "${UMASK}" fi @@ -146,23 +127,54 @@ case "${version}" in ;; esac +# Check userspace and kernel support for compressed initramfs images +if [ -z "${compress:-}" ]; then + compress=${COMPRESS} +else + COMPRESS=${compress} +fi + +if ! command -v "${compress}" >/dev/null 2>&1; then + compress=gzip + COMPRESS=gzip + [ "${verbose}" = y ] && \ + echo "No ${COMPRESS} in ${PATH}, using gzip" +fi + +if ! `grep -q -i ^config_rd_${COMPRESS%p} /boot/config-${version}` ; then + compress=gzip + [ "${verbose}" = y ] && \ + echo "linux-2.6 misses ${COMPRESS} support, using gzip" +fi + +[ "${compress}" = lzop ] && compress="lzop -9" + if [ -d "${outfile}" ]; then - echo "${outfile} is a directory" + echo "${outfile} is a directory" >&2 exit 1 fi MODULESDIR="/lib/modules/${version}" if [ ! -e "${MODULESDIR}" ]; then - echo "Cannot find ${MODULESDIR}" - exit 1 + echo "WARNING: missing ${MODULESDIR}" + echo "Device driver support needs thus be built-in linux image!" fi if [ ! -e "${MODULESDIR}/modules.dep" ]; then depmod ${version} fi -DESTDIR="$(mktemp -t -d mkinitramfs_XXXXXX)" || exit 1 -__TMPCPIOGZ="$(mktemp -t mkinitramfs-OL_XXXXXX)" || exit 1 +DESTDIR="$(mktemp -d ${TMPDIR:-/tmp}/mkinitramfs_XXXXXX)" || exit 1 +chmod 755 "${DESTDIR}" + +# do not execute cache_run_scripts() if mounted with noexec +NOEXEC="" +fs=$(df $DESTDIR | tail -1 | awk '{print $6}') +if [ -n "$fs" ] && mount | grep -q "on $fs .*noexec" ; then + NOEXEC=1 +fi + +__TMPCPIOGZ="$(mktemp ${TMPDIR:-/tmp}/mkinitramfs-OL_XXXXXX)" || exit 1 DPKG_ARCH=`dpkg --print-architecture` @@ -176,6 +188,7 @@ export DPKG_ARCH export verbose export KEYMAP export MODULES +export BUSYBOX # Private, used by 'catenate_cpiogz'. export __TMPCPIOGZ @@ -184,6 +197,12 @@ for d in bin conf/conf.d etc lib/modules sbin scripts ${MODULESDIR}; do mkdir -p "${DESTDIR}/${d}" done +# Copy the modules.order file in +if [ -f "${MODULESDIR}/modules.order" ]; then + cp -p "${MODULESDIR}/modules.order" \ + "${DESTDIR}${MODULESDIR}/modules.order" +fi + # MODULES=list case. Always honour. for x in "${CONFDIR}/modules" /usr/share/initramfs-tools/modules.d/*; do if [ -f "${x}" ]; then @@ -207,8 +226,8 @@ list) # nothing to add ;; *) - echo "mkinitramfs: Warning unsupported MODULES setting: ${MODULES}." - echo "mkinitramfs: Falling back to MODULES=most." + echo "W: mkinitramfs: unsupported MODULES setting: ${MODULES}." + echo "W: mkinitramfs: Falling back to MODULES=most." auto_add_modules ;; esac @@ -216,30 +235,25 @@ esac # Have to do each file, because cpio --dereference doesn't recurse down # symlinks. -# klibc -ln -s /usr/lib/klibc/bin/* ${DESTDIR}/bin -ln -s /lib/klibc-*.so ${DESTDIR}/lib -rm -f ${DESTDIR}/bin/kinit* ${DESTDIR}/bin/gzip - -copy_exec /usr/share/initramfs-tools/init /init +cp -p /usr/share/initramfs-tools/init ${DESTDIR}/init # add existant boot scripts for b in $(cd /usr/share/initramfs-tools/scripts/ && find . \ - -regextype posix-extended -regex '.*/[[:alnum:]_]+$' -type f); do + -regextype posix-extended -regex '.*/[[:alnum:]\._-]+$' -type f); do [ -d "${DESTDIR}/scripts/$(dirname "${b}")" ] \ || mkdir -p "${DESTDIR}/scripts/$(dirname "${b}")" cp -p "/usr/share/initramfs-tools/scripts/${b}" \ "${DESTDIR}/scripts/$(dirname "${b}")/" done for b in $(cd "${CONFDIR}/scripts" && find . \ - -regextype posix-extended -regex '.*/[[:alnum:]_]+$' -type f); do + -regextype posix-extended -regex '.*/[[:alnum:]\._-]+$' -type f); do [ -d "${DESTDIR}/scripts/$(dirname "${b}")" ] \ || mkdir -p "${DESTDIR}/scripts/$(dirname "${b}")" cp -p "${CONFDIR}/scripts/${b}" "${DESTDIR}/scripts/$(dirname "${b}")/" done echo "DPKG_ARCH=${DPKG_ARCH}" > ${DESTDIR}/conf/arch.conf -copy_exec "${CONFDIR}/initramfs.conf" /conf +cp -p "${CONFDIR}/initramfs.conf" ${DESTDIR}/conf for i in ${EXTRA_CONF}; do if [ -e "${CONFDIR}/conf.d/${i}" ]; then copy_exec "${CONFDIR}/conf.d/${i}" /conf/conf.d @@ -249,28 +263,17 @@ for i in ${EXTRA_CONF}; do done # ROOT hardcoding -if [ -n "${ROOT}" ]; then +if [ -n "${ROOT:-}" ]; then echo "ROOT=${ROOT}" > ${DESTDIR}/conf/conf.d/root fi -# Busybox -if [ "${BUSYBOX}" = "n" ] || [ ! -e ${BUSYBOXDIR}/busybox ]; then - mv ${DESTDIR}/bin/sh.shared ${DESTDIR}/bin/sh - # those root need busybox - eval "$(mount | awk '/ \/ / {print "r_dev=" $1; exit}')" - if [ "${r_dev#/dev/mapper/}" != "${r_dev}" ]; then - echo "Warning: Busybox is required for successful boot!" - fi -else - rm -f ${DESTDIR}/bin/sh - rm -f ${DESTDIR}/bin/busybox - copy_exec ${BUSYBOXDIR}/busybox /bin/busybox - ln -s ${BUSYBOXDIR}/busybox ${DESTDIR}/bin/sh +if ! command -v ldd >/dev/null 2>&1 ; then + echo "WARNING: no ldd around - install libc-bin" >&2 + exit 1 fi -# Modutils +# module-init-tools copy_exec /sbin/modprobe /sbin -copy_exec /sbin/depmod /sbin copy_exec /sbin/rmmod /sbin mkdir -p "${DESTDIR}/etc/modprobe.d" cp -a /etc/modprobe.d/* "${DESTDIR}/etc/modprobe.d/" @@ -283,13 +286,58 @@ fi run_scripts /usr/share/initramfs-tools/hooks run_scripts "${CONFDIR}"/hooks +# cache boot run order +if [ -n "$NOEXEC" ]; then + echo "W: TMPDIR is mounted noexec, will not cache run scripts." +else + for b in $(cd "${DESTDIR}/scripts" && find . -mindepth 1 -type d); do + cache_run_scripts "${DESTDIR}" "/scripts/${b#./}" + done +fi + +# generate module deps +depmod -a -b "${DESTDIR}" ${version} +rm -f "${DESTDIR}/lib/modules/${version}"/modules.*map + # Apply DSDT to initramfs if [ -e "${CONFDIR}/DSDT.aml" ]; then copy_exec "${CONFDIR}/DSDT.aml" / fi +# Remove any looping or broken symbolic links, since they break cpio. +[ "${verbose}" = y ] && xargs_verbose="-t" +(cd "${DESTDIR}" && find . -type l -printf '%p %Y\n' | sed -n 's/ [LN]$//p' \ + | xargs ${xargs_verbose:-} -rL1 rm -f) + [ "${verbose}" = y ] && echo "Building cpio ${outfile} initramfs" -(cd "${DESTDIR}" && find . | cpio --quiet --dereference -o -H newc | gzip >"${outfile}") || exit 1 +( +# work around lack of "set -o pipefail" for the following pipe: +# cd "${DESTDIR}" && find . | cpio --quiet --dereference -o -H newc | gzip >"${outfile}" || exit 1 +exec 3>&1 +eval ` + # http://cfaj.freeshell.org/shell/cus-faq-2.html + exec 4>&1 >&3 3>&- + cd "${DESTDIR}" + { + find . 4>&-; echo "ec1=$?;" >&4 + } | { + cpio --quiet --dereference -o -H newc 4>&-; echo "ec2=$?;" >&4 + } | ${compress} >"${outfile}" + echo "ec3=$?;" >&4 +` +if [ "$ec1" -ne 0 ]; then + echo "E: mkinitramfs failure find $ec1 cpio $ec2 $compress $ec3" + exit "$ec1" +fi +if [ "$ec2" -ne 0 ]; then + echo "E: mkinitramfs failure cpio $ec2 $compress $ec3" + exit "$ec2" +fi +if [ "$ec3" -ne 0 ]; then + echo "E: mkinitramfs failure $compress $ec3" + exit "$ec3" +fi +) || exit 1 if [ -s "${__TMPCPIOGZ}" ]; then cat "${__TMPCPIOGZ}" >>"${outfile}" || exit 1 |