#!/bin/bash
+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# ex: ts=8 sw=4 sts=4 et filetype=sh
#
# Generator script for a dracut initramfs
# Tries to retain some degree of compatibility with the command line
# of the various mkinitrd implementations out there
#
-# Copyright 2005-2009 Red Hat, Inc. All rights reserved.
+# Copyright 2005-2010 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
+# store for logging
+dracut_args="$@"
usage() {
# 80x25 linebreak here ^
- echo "Usage: $0 [OPTION]... <initramfs> <kernel-version>
+ cat << EOF
+Usage: $0 [OPTION]... <initramfs> <kernel-version>
Creates initial ramdisk images for preloading modules
-f, --force Overwrite existing initramfs file.
-o, --omit [LIST] Omit a space-separated list of dracut modules.
-a, --add [LIST] Add a space-separated list of dracut modules.
-d, --drivers [LIST] Specify a space-separated list of kernel modules to
- include in the initramfs.
+ exclusively include in the initramfs.
+ --add-drivers [LIST] Specify a space-separated list of kernel
+ modules to add to the initramfs.
+ --filesystems [LIST] Specify a space-separated list of kernel filesystem
+ modules to exclusively include in the generic
+ initramfs.
-k, --kmoddir [DIR] Specify the directory, where to look for kernel
modules
--fwdir [DIR] Specify additional directories, where to look for
firmwares, separated by :
--kernel-only Only install kernel drivers and firmware files
--no-kernel Do not install kernel drivers and firmware files
- --strip Strip binaries in the initramfs (default)
- --nostrip Do not strip binaries in the initramfs
+ --strip Strip binaries in the initramfs
+ --nostrip Do not strip binaries in the initramfs (default)
+ --mdadmconf Include local /etc/mdadm.conf
+ --nomdadmconf Do not include local /etc/mdadm.conf
+ --lvmconf Include local /etc/lvm/lvm.conf
+ --nolvmconf Do not include local /etc/lvm/lvm.conf
-h, --help This message
--debug Output debug information of the build process
- -v, --verbose Verbose output during the build process
+ -L, --stdlog [0-6] Specify logging level (to standard error)
+ 0 - suppress any messages
+ 1 - only fatal errors
+ 2 - all errors
+ 3 - warnings
+ 4 - info (default)
+ 5 - debug info (here starts lots of output)
+ 6 - trace info (and even more)
+ -v, --verbose Verbose output during the build process (info level)
+ -q, --quiet Display only errors and fatal errors during build
-c, --conf [FILE] Specify configuration file to use.
Default: /etc/dracut.conf
+ --confdir [DIR] Specify configuration directory to use *.conf files
+ from. Default: /etc/dracut.conf.d
-l, --local Local mode. Use modules from the current working
directory instead of the system-wide installed in
/usr/share/dracut/modules.d.
Useful when running dracut from a git checkout.
- -H, --hostonly Host-Only mode: Install only what is needed for
+ -H, --hostonly Host-Only mode: Install only what is needed for
booting the local host instead of a generic host.
+ --fstab Use /etc/fstab to determine the root device.
-i, --include [SOURCE] [TARGET]
Include the files in the SOURCE directory into the
Target directory in the final initramfs.
+ If SOURCE is a file, it will be installed to TARGET
+ in the final initramfs.
-I, --install [LIST] Install the space separated list of files into the
initramfs.
-"
+ --gzip Compress the generated initramfs using gzip.
+ This will be done by default, unless another
+ compression option or --no-compress is passed.
+ --bzip2 Compress the generated initramfs using bzip2.
+ Make sure your kernel has bzip2 decompression support
+ compiled in, otherwise you will not be able to boot.
+ --lzma Compress the generated initramfs using lzma.
+ Make sure your kernel has lzma support compiled in,
+ otherwise you will not be able to boot.
+ --no-compress Do not compress the generated initramfs. This will
+ override any other compression options.
+ --list-modules List all available dracut modules.
+EOF
}
+# function push()
+# push values to a stack
+# $1 = stack variable
+# $2.. values
+# example:
+# push stack 1 2 "3 4"
+push() {
+ local __stack=$1; shift
+ for i in "$@"; do
+ eval ${__stack}'[${#'${__stack}'[@]}]="$i"'
+ done
+}
+
+# function pop()
+# pops the last value from a stack
+# assigns value to second argument variable
+# or echo to stdout, if no second argument
+# $1 = stack variable
+# $2 = optional variable to store the value
+# example:
+# pop stack val
+# val=$(pop stack)
+pop() {
+ local __stack=$1; shift
+ local __resultvar=$1
+ local myresult;
+ # check for empty stack
+ eval '[[ ${#'${__stack}'[@]} -eq 0 ]] && return 1'
+
+ eval myresult='${'${__stack}'[${#'${__stack}'[@]}-1]}'
+
+ if [[ "$__resultvar" ]]; then
+ eval $__resultvar="'$myresult'"
+ else
+ echo "$myresult"
+ fi
+ eval unset ${__stack}'[${#'${__stack}'[@]}-1]'
+ return 0
+}
+
+# Little helper function for reading args from the commandline.
+# it automatically handles -a b and -a=b variants, and returns 1 if
+# we need to shift $3.
+read_arg() {
+ # $1 = arg name
+ # $2 = arg value
+ # $3 = arg parameter
+ local rematch='^[^=]*=(.*)$'
+ if [[ $2 =~ $rematch ]]; then
+ read "$1" <<< "${BASH_REMATCH[1]}"
+ else
+ read "$1" <<< "$3"
+ # There is no way to shift our callers args, so
+ # return 1 to indicate they should do it instead.
+ return 1
+ fi
+}
+
+# Little helper function for reading args from the commandline to a stack.
+# it automatically handles -a b and -a=b variants, and returns 1 if
+# we need to shift $3.
+push_arg() {
+ # $1 = arg name
+ # $2 = arg value
+ # $3 = arg parameter
+ local rematch='^[^=]*=(.*)$'
+ if [[ $2 =~ $rematch ]]; then
+ push "$1" "${BASH_REMATCH[1]}"
+ else
+ push "$1" "$3"
+ # There is no way to shift our callers args, so
+ # return 1 to indicate they should do it instead.
+ return 1
+ fi
+}
+
+kernel="unset"
+
while (($# > 0)); do
- case $1 in
- -f|--force) force=yes;;
- -m|--modules) dracutmodules_l="$2"; shift;;
- -o|--omit) omit_dracutmodules_l="$2"; shift;;
- -a|--add) add_dracutmodules_l="$2"; shift;;
- -d|--drivers) drivers_l="$2"; shift;;
- -k|--kmoddir) drivers_dir_l="$2"; shift;;
- --fwdir) fw_dir_l="$2"; shift;;
- --kernel-only) kernel_only="yes"; nokernel="no";;
- --no-kernel) kernel_only="no"; no_kernel="yes";;
- --strip) do_strip_l="yes";;
- --nostrip) do_strip_l="no";;
- -h|--help) usage; exit 1 ;;
- --debug) debug="yes";;
- -v|--verbose) beverbose="yes";;
- -c|--conf) conffile="$2"; shift;;
- -l|--local) allowlocal="yes" ;;
- -H|--hostonly) hostonly="-h" ;;
- -i|--include) include_src="$2"; include_target="$3"; shift 2;;
- -I|--install) install_items="$2"; shift;;
- -*) printf "\nUnknown option: %s\n\n" "$1" >&2; usage; exit 1;;
- *) break ;;
+ case ${1%%=*} in
+ -a|--add) push_arg add_dracutmodules_l "$@" || shift;;
+ --add-drivers) push_arg add_drivers_l "$@" || shift;;
+ -m|--modules) push_arg dracutmodules_l "$@" || shift;;
+ -o|--omit) push_arg omit_dracutmodules_l "$@" || shift;;
+ -d|--drivers) push_arg drivers_l "$@" || shift;;
+ --filesystems) push_arg filesystems_l "$@" || shift;;
+ -I|--install) push_arg install_items "$@" || shift;;
+ --fwdir) push_arg fw_dir_l "$@" || shift;;
+ -k|--kmoddir) read_arg drivers_dir_l "$@" || shift;;
+ -c|--conf) read_arg conffile "$@" || shift;;
+ --confdir) read_arg confdir "$@" || shift;;
+ -L|--stdlog) read_arg stdloglvl_l "$@" || shift;;
+ -f|--force) force=yes;;
+ --kernel-only) kernel_only="yes"; no_kernel="no";;
+ --no-kernel) kernel_only="no"; no_kernel="yes";;
+ --strip) do_strip_l="yes";;
+ --nostrip) do_strip_l="no";;
+ --mdadmconf) mdadmconf_l="yes";;
+ --nomdadmconf) mdadmconf_l="no";;
+ --lvmconf) lvmconf_l="yes";;
+ --nolvmconf) lvmconf_l="no";;
+ --debug) debug="yes";;
+ -v|--verbose) beverbose="yes";;
+ -q|--quiet) bequiet="yes";;
+ -l|--local) allowlocal="yes" ;;
+ -H|--hostonly) hostonly_l="yes" ;;
+ --fstab) use_fstab_l="yes" ;;
+ -h|--help) usage; exit 1 ;;
+ -i|--include) push include_src "$2"; push include_target "$3"; shift 2;;
+ --bzip2) [[ $compress != cat ]] && compress="bzip2 -9";;
+ --lzma) [[ $compress != cat ]] && compress="lzma -9";;
+ --xz) [[ $compress != cat ]] && compress="xz -9";;
+ --no-compress) compress="cat";;
+ --gzip) if [[ $compress != cat ]]; then
+ type pigz > /dev/null 2>&1 && compress="pigz -9" || \
+ compress="gzip -9"
+ fi;;
+ --list-modules)
+ do_list="yes";
+ ;;
+ -*) printf "\nUnknown option: %s\n\n" "$1" >&2; usage; exit 1;;
+ *)
+ if ! [[ $outfile ]]; then
+ outfile=$1
+ elif [[ $kernel = "unset" ]]; then
+ kernel=$1
+ else
+ usage; exit 1;
+ fi
+ ;;
esac
shift
done
+if ! [[ $kernel ]] || [[ $kernel = "unset" ]]; then
+ kernel=$(uname -r)
+fi
+[[ $outfile ]] || outfile="/boot/initramfs-$kernel.img"
-PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+export PATH
[[ $debug ]] && {
export PS4='${BASH_SOURCE}@${LINENO}(${FUNCNAME[0]}): ';
set -x
}
+# For compatibility with -v behaviour. Set to info level.
+[[ $beverbose ]] && (( $stdloglvl_l < 4 )) && stdloglvl_l=4
+
+# When quiet, display only errors and fatal errors.
+[[ $bequiet ]] && (( $stdloglvl_l > 2 )) && stdloglvl_l=2
+
+[[ $dracutbasedir ]] || dracutbasedir=/usr/share/dracut
+
+[[ $allowlocal && -f "$(readlink -f ${0%/*})/dracut-functions" ]] && \
+ dracutbasedir="${0%/*}"
+
# if we were not passed a config file, try the default one
-[[ ! -f $conffile ]] && conffile="/etc/dracut.conf"
+if [[ ! -f $conffile ]]; then
+ [[ $allowlocal ]] && conffile="$dracutbasedir/dracut.conf" || \
+ conffile="/etc/dracut.conf"
+fi
+
+if [[ ! -d $confdir ]]; then
+ [[ $allowlocal ]] && confdir="$dracutbasedir/dracut.conf.d" || \
+ confdir="/etc/dracut.conf.d"
+fi
# source our config file
[[ -f $conffile ]] && . "$conffile"
+# source our config dir
+if [[ $confdir && -d $confdir ]]; then
+ for f in "$confdir"/*.conf; do
+ [[ -e $f ]] && . "$f"
+ done
+fi
+
+# these optins add to the stuff in the config file
+if [[ ${#add_dracutmodules_l[@]} ]]; then
+ while pop add_dracutmodules_l val; do
+ add_dracutmodules+=" $val "
+ done
+fi
+
+if [[ ${#add_drivers_l[@]} ]]; then
+ while pop add_drivers_l val; do
+ add_drivers+=" $val "
+ done
+fi
+
# these options override the stuff in the config file
-[[ $dracutmodules_l ]] && dracutmodules=$dracutmodules_l
-[[ $omit_dracutmodules_l ]] && omit_dracutmodules=$omit_dracutmodules_l
-[[ $add_dracutmodules_l ]] && add_dracutmodules="$add_dracutmodules $add_dracutmodules_l"
-[[ $drivers_l ]] && drivers=$drivers_l
+if [[ ${#dracutmodules_l[@]} ]]; then
+ dracutmodules=''
+ while pop dracutmodules_l val; do
+ dracutmodules+="$val "
+ done
+fi
+
+if [[ ${#omit_dracutmodules_l[@]} ]]; then
+ omit_dracutmodules=''
+ while pop omit_dracutmodules_l val; do
+ omit_dracutmodules+="$val "
+ done
+fi
+
+if [[ ${#drivers_l[@]} ]]; then
+ drivers=''
+ while pop drivers_l val; do
+ drivers+="$val "
+ done
+fi
+
+if [[ ${#filesystems_l[@]} ]]; then
+ filesystems=''
+ while pop filesystems_l val; do
+ filesystems+="$val "
+ done
+fi
+
+if [[ ${#fw_dir_l[@]} ]]; then
+ fw_dir=''
+ while pop fw_dir_l val; do
+ fw_dir+="$val "
+ done
+fi
+
+[[ $stdloglvl_l ]] && stdloglvl=$stdloglvl_l
[[ $drivers_dir_l ]] && drivers_dir=$drivers_dir_l
-[[ $fw_dir_l ]] && fw_dir=$fw_dir_l
[[ $do_strip_l ]] && do_strip=$do_strip_l
+[[ $hostonly_l ]] && hostonly=$hostonly_l
+[[ $use_fstab_l ]] && use_fstab=$use_fstab_l
+[[ $mdadmconf_l ]] && mdadmconf=$mdadmconf_l
+[[ $lvmconf_l ]] && lvmconf=$lvmconf_l
[[ $dracutbasedir ]] || dracutbasedir=/usr/share/dracut
[[ $fw_dir ]] || fw_dir=/lib/firmware
-[[ $do_strip ]] || do_strip=yes
+[[ $do_strip ]] || do_strip=no
+# eliminate IFS hackery when messing with fw_dir
+fw_dir=${fw_dir//:/ }
-[[ $allowlocal && -f "$(dirname $0)/dracut-functions" ]] && dsrc="$(dirname $0)" || dsrc=$dracutbasedir
+[[ $hostonly = yes ]] && hostonly="-h"
+[[ $hostonly != "-h" ]] && unset hostonly
+[[ $compress ]] || compress="gzip -9"
-if [[ -f $dsrc/dracut-functions ]]; then
- . $dsrc/dracut-functions
+if [[ -f $dracutbasedir/dracut-functions ]]; then
+ . $dracutbasedir/dracut-functions
else
- echo "Cannot find $dsrc/dracut-functions. Are you running from a git checkout?"
- echo "Try passing -l as an argument to $0"
- exit 1
+ echo "Cannot find $dracutbasedir/dracut-functions." >&2
+ echo "Are you running from a git checkout?" >&2
+ echo "Try passing -l as an argument to $0" >&2
+ exit 1
fi
-dracutfunctions=$dsrc/dracut-functions
+dracutfunctions=$dracutbasedir/dracut-functions
export dracutfunctions
+dinfo "Executing $0 $dracut_args"
+
+[[ $do_list = yes ]] && {
+ for mod in $dracutbasedir/modules.d/*; do
+ [[ -d $mod ]] || continue;
+ [[ -e $mod/install || -e $mod/installkernel || \
+ -e $mod/module-setup.sh ]] || continue
+ echo ${mod##*/??}
+ done
+ exit 0
+}
+
+# Detect lib paths
+[[ $libdir ]] || for libdir in /lib64 /lib; do
+ [[ -d $libdir ]] && break
+done || {
+ derror 'No lib directory?!!!'
+ exit 1
+}
+[[ $usrlibdir ]] || for usrlibdir in /usr/lib64 /usr/lib; do
+ [[ -d $usrlibdir ]] && break
+done || dwarning 'No usr/lib directory!'
+
# This is kinda legacy -- eventually it should go away.
case $dracutmodules in
""|auto) dracutmodules="all" ;;
esac
-[[ $2 ]] && kernel=$2 || kernel=$(uname -r)
-[[ $1 ]] && outfile=$(readlink -f $1) || outfile="/boot/initrd-$kernel.img"
+abs_outfile=$(readlink -f "$outfile") && outfile="$abs_outfile"
srcmods="/lib/modules/$kernel/"
-[ -n "$drivers_dir" ] && srcmods="$drivers_dir"
+[[ $drivers_dir ]] && {
+ if vercmp $(modprobe --version | cut -d' ' -f3) lt 3.7; then
+ derror 'To use --kmoddir option module-init-tools >= 3.7 is required.'
+ exit 1
+ fi
+ srcmods="$drivers_dir"
+}
export srcmods
if [[ -f $outfile && ! $force ]]; then
- echo "Will not override existing initramfs ($outfile) without --force"
+ derror "Will not override existing initramfs ($outfile) without --force"
exit 1
fi
-hookdirs="cmdline pre-udev pre-trigger netroot pre-mount pre-pivot mount emergency"
+outdir=${outfile%/*}
+if [[ ! -d "$outdir" ]]; then
+ derror "Can't write $outfile: Directory $outdir does not exist."
+ exit 1
+elif [[ ! -w "$outdir" ]]; then
+ derror "No permission to write $outdir."
+ exit 1
+elif [[ -f "$outfile" && ! -w "$outfile" ]]; then
+ derror "No permission to write $outfile."
+ exit 1
+fi
+
+hookdirs="cmdline pre-udev pre-trigger netroot pre-mount"
+hookdirs+=" pre-pivot mount emergency"
+[[ $TMPDIR && ! -w $TMPDIR ]] && unset TMPDIR
readonly initdir=$(mktemp -d -t initramfs.XXXXXX)
-trap 'rm -rf "$initdir"' 0 # clean up after ourselves no matter how we die.
+
+# clean up after ourselves no matter how we die.
+trap 'ret=$?;rm -rf "$initdir";exit $ret;' EXIT
+# clean up after ourselves no matter how we die.
+trap 'exit 1;' SIGINT
# Need to be able to have non-root users read stuff (rpcbind etc)
chmod 755 "$initdir"
-export initdir hookdirs dsrc dracutmodules drivers \
- fw_dir drivers_dir debug beverbose no_kernel kernel_only
+export initdir hookdirs dracutbasedir dracutmodules drivers \
+ fw_dir drivers_dir debug no_kernel kernel_only \
+ add_drivers mdadmconf lvmconf filesystems \
+ use_fstab libdir usrlibdir \
+ stdloglvl sysloglvl fileloglvl kmsgloglvl logfile
-if [[ "$kernel_only" != "yes" ]]; then
+if [[ $kernel_only != yes ]]; then
# Create some directory structure first
- for d in bin sbin usr/bin usr/sbin usr/lib etc proc sys sysroot tmp dev/pts var/run; do
- mkdir -p "$initdir/$d";
+ for d in bin sbin usr/bin usr/sbin usr/lib etc \
+ proc sys sysroot tmp dev/pts var/run; do
+ inst_dir "/$d";
done
fi
# check all our modules to see if they should be sourced.
# This builds a list of modules that we will install next.
-check_modules
-
-#source our modules.
-for moddir in "$dsrc/modules.d"/[0-9][0-9]*; do
+check_module_dir
+
+# source our modules.
+for moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do
mod=${moddir##*/}; mod=${mod#[0-9][0-9]}
if strstr "$mods_to_load" " $mod "; then
- if [[ "$kernel_only" = "yes" ]]; then
- [[ -x "$moddir/installkernel" ]] && . "$moddir/installkernel"
- else
- . "$moddir/install"
- if [[ "$no_kernel" != "yes" && -x "$moddir/installkernel" ]]; then
- . "$moddir/installkernel"
- fi
- fi
- mods_to_load=${mods_to_load// $mod /}
+ dinfo "*** Sourcing module $mod"
+ if [[ $kernel_only = yes ]]; then
+ module_installkernel $mod
+ else
+ module_install $mod
+ if [[ $no_kernel != yes ]]; then
+ module_installkernel $mod
+ fi
+ fi
+ mods_to_load=${mods_to_load// $mod /}
fi
done
unset moddir
-echo $mods_to_load
## final stuff that has to happen
# generate module dependencies for the initrd
-if [ -d "$initdir/lib/modules/$kernel" ]; then
- if ! depmod -a -b "$initdir" $kernel; then
- echo "\"depmod -a $kernel\" failed."
- exit 1
- fi
+if [[ -d $initdir/lib/modules/$kernel ]] && \
+ ! depmod -a -b "$initdir" $kernel; then
+ derror "\"depmod -a $kernel\" failed."
+ exit 1
fi
-# make sure that library links are correct and up to date
-ldconfig -n -r "$initdir" /lib* /usr/lib*
-
-if [[ $include_src && $include_target ]]; then
- mkdir -p "$initdir$include_target"
- cp -a -t "$initdir$include_target" "$include_src"/*
-fi
+while pop include_src src && pop include_target tgt; do
+ if [[ $src && $tgt ]]; then
+ if [[ -f $src ]]; then
+ inst $src $tgt
+ else
+ mkdir -p "${initdir}/${tgt}"
+ cp -a -t "${initdir}/${tgt}" "$src"/*
+ fi
+ fi
+done
-for item in $install_items; do
- dracut_install "$item"
+while pop install_items items; do
+ for item in $items; do
+ dracut_install "$item"
+ done
done
unset item
-[[ "$beverbose" = "yes" ]] && (du -c "$initdir" | sort -n)
+# make sure that library links are correct and up to date
+cp -ar /etc/ld.so.conf* "$initdir"/etc
+ldconfig -r "$initdir" || [[ $UID != "0" ]] && \
+ dinfo "ldconfig might need uid=0 (root) for chroot()"
+
+[[ $beverbose = yes ]] && (du -c "$initdir" | sort -n)
# strip binaries
-if [ "$do_strip" = "yes" ] ; then
- for p in strip objdump sed grep find; do
- if ! which $p >/dev/null 2>&1; then
- derror "Could not find '$p'. You should run $0 with '--nostrip'."
- do_strip=no
- fi
+if [[ $do_strip = yes ]] ; then
+ for p in strip grep find; do
+ if ! type -P $p >/dev/null; then
+ derror "Could not find '$p'. You should run $0 with '--nostrip'."
+ do_strip=no
+ fi
done
fi
-if [ "$do_strip" = "yes" ] ; then
- for f in $(find "$initdir" -type f \( -perm -0100 -or -perm -0010 -or -perm -0001 \) -exec file {} \; |
- grep -v ' shared object,' |
- sed -n -e 's/^\(.*\):[ ]*ELF.*, not stripped/\1/p'); do
- dinfo "Stripping $f"
- strip -g "$f" || :
- #
- # FIXME: only strip -g for now
- #
- #strip -g --strip-unneeded "$f" || :
- #note="-R .note"
- #if objdump -h $f | grep '^[ ]*[0-9]*[ ]*.note[ ]' -A 1 | \
- # grep -q ALLOC; then
- # note=
- #fi
- #strip -R .comment $note "$f" || :
+if [[ $do_strip = yes ]] ; then
+ for f in $(find "$initdir" -type f \
+ \( -perm -0100 -or -perm -0010 -or -perm -0001 \
+ -or -path '*/lib/modules/*.ko' \) ); do
+ dinfo "Stripping $f"
+ strip -g "$f" 2>/dev/null|| :
done
fi
-( cd "$initdir"; find . |cpio -R 0:0 -H newc -o |gzip -9 > "$outfile"; )
+type hardlink &>/dev/null && {
+ hardlink "$initdir" 2>&1
+}
-[[ "$beverbose" = "yes" ]] && ls -lh "$outfile"
+if ! ( cd "$initdir"; find . |cpio -R 0:0 -H newc -o --quiet | \
+ $compress > "$outfile"; ); then
+ derror "dracut: creation of $outfile failed"
+ exit 1
+fi
+dinfo "Wrote $outfile"
+dinfo $(ls -l "$outfile")
exit 0
-
projects / thirdparty / dracut.git / blobdiff