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dracut.sh
1 344 строки
42 KB
Colin Walters
dracut.sh: Fixup previous commit to only read /sys and /proc in hostonly mode
12 сен 2013, 00:50
12 сен 2013, 00:50
36b2e5e
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#!/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 2005-2013 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 # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # # store for logging dracut_args=( "$@" ) set -o pipefail usage() { [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut if [[ -f $dracutbasedir/dracut-version.sh ]]; then . $dracutbasedir/dracut-version.sh fi # 80x25 linebreak here ^ cat << EOF Usage: $0 [OPTION]... [<initramfs> [<kernel-version>]] Version: $DRACUT_VERSION Creates initial ramdisk images for preloading modules -h, --help Display all options If a [LIST] has multiple arguments, then you have to put these in quotes. For example: # dracut --add-drivers "module1 module2" ... EOF } long_usage() { [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut if [[ -f $dracutbasedir/dracut-version.sh ]]; then . $dracutbasedir/dracut-version.sh fi # 80x25 linebreak here ^ cat << EOF Usage: $0 [OPTION]... [<initramfs> [<kernel-version>]] Version: $DRACUT_VERSION Creates initial ramdisk images for preloading modules --kver [VERSION] Set kernel version to [VERSION]. -f, --force Overwrite existing initramfs file. -a, --add [LIST] Add a space-separated list of dracut modules. -m, --modules [LIST] Specify a space-separated list of dracut modules to call when building the initramfs. Modules are located in /usr/lib/dracut/modules.d. -o, --omit [LIST] Omit a space-separated list of dracut modules. --force-add [LIST] Force to add a space-separated list of dracut modules to the default set of modules, when -H is specified. -d, --drivers [LIST] Specify a space-separated list of kernel modules to exclusively include in the initramfs. --add-drivers [LIST] Specify a space-separated list of kernel modules to add to the initramfs. --omit-drivers [LIST] Specify a space-separated list of kernel modules not 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 --print-cmdline Print the kernel command line for the given disk layout --early-microcode Combine early microcode with ramdisk --no-early-microcode Do not combine early microcode with ramdisk --kernel-cmdline [PARAMETERS] Specify default kernel command line parameters --strip Strip binaries in the initramfs --nostrip Do not strip binaries in the initramfs --hardlink Hardlink files in the initramfs --nohardlink Do not hardlink files in the initramfs --prefix [DIR] Prefix initramfs files with [DIR] --noprefix Do not prefix initramfs files --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 --fscks [LIST] Add a space-separated list of fsck helpers. --nofscks Inhibit installation of any fsck helpers. --ro-mnt Mount / and /usr read-only by default. -h, --help This message --debug Output debug information of the build process --profile Output profile information of 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 5 - debug info (here starts lots of output) 6 - trace info (and even more) -v, --verbose Increase verbosity level -q, --quiet Decrease verbosity level -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 --tmpdir [DIR] Temporary directory to be used instead of default /var/tmp. -l, --local Local mode. Use modules from the current working directory instead of the system-wide installed in /usr/lib/dracut/modules.d. Useful when running dracut from a git checkout. -H, --hostonly Host-Only mode: Install only what is needed for booting the local host instead of a generic host. -N, --no-hostonly Disables Host-Only mode --persistent-policy [POLICY] Use [POLICY] to address disks and partitions. POLICY can be any directory name found in /dev/disk. E.g. "by-uuid", "by-label" --fstab Use /etc/fstab to determine the root device. --add-fstab [FILE] Add file to the initramfs fstab --mount "[DEV] [MP] [FSTYPE] [FSOPTS]" Mount device [DEV] on mountpoint [MP] with filesystem [FSTYPE] and options [FSOPTS] in the initramfs --add-device "[DEV]" Bring up [DEV] in initramfs -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. --xz Compress the generated initramfs using xz. Make sure that your kernel has xz support compiled in, otherwise you will not be able to boot. --compress [COMPRESSION] Compress the generated initramfs with the passed compression program. Make sure your kernel knows how to decompress the generated initramfs, 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. -M, --show-modules Print included module's name to standard output during build. --keep Keep the temporary initramfs for debugging purposes --printsize Print out the module install size --sshkey [SSHKEY] Add ssh key to initramfs (use with ssh-client module) If [LIST] has multiple arguments, then you have to put these in quotes. For example: # dracut --add-drivers "module1 module2" ... EOF } # function push() # push values to a stack # $1 = stack variable # $2.. values # example: # push stack 1 2 "3 4" push() { local _i 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 _value; # check for empty stack eval '[[ ${#'${__stack}'[@]} -eq 0 ]] && return 1' eval _value='${'${__stack}'[${#'${__stack}'[@]}-1]}' if [[ "$__resultvar" ]]; then eval $__resultvar="'$_value'" else printf "%s" "$_value" 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 } dropindirs_sort() { local suffix=$1; shift local -a files local f d for d in "$@"; do for i in "$d/"*"$suffix"; do if [[ -e "$i" ]]; then printf "%s\n" "${i##*/}" fi done done | sort -Vu | { readarray -t files for f in "${files[@]}"; do for d in "$@"; do if [[ -e "$d/$f" ]]; then printf "%s\n" "$d/$f" continue 2 fi done done } } verbosity_mod_l=0 unset kernel unset outfile # Workaround -i, --include taking 2 arguments set -- "${@/--include/++include}" # This prevents any long argument ending with "-i" # -i, like --opt-i but I think we can just prevent that set -- "${@/%-i/++include}" TEMP=$(unset POSIXLY_CORRECT; getopt \ -o "a:m:o:d:I:k:c:L:fvqlHhMN" \ --long kver: \ --long add: \ --long force-add: \ --long add-drivers: \ --long omit-drivers: \ --long modules: \ --long omit: \ --long drivers: \ --long filesystems: \ --long install: \ --long fwdir: \ --long libdirs: \ --long fscks: \ --long add-fstab: \ --long mount: \ --long device: \ --long nofscks: \ --long ro-mnt \ --long kmoddir: \ --long conf: \ --long confdir: \ --long tmpdir: \ --long stdlog: \ --long compress: \ --long prefix: \ --long force \ --long kernel-only \ --long no-kernel \ --long print-cmdline \ --long kernel-cmdline: \ --long strip \ --long nostrip \ --long hardlink \ --long nohardlink \ --long noprefix \ --long mdadmconf \ --long nomdadmconf \ --long lvmconf \ --long nolvmconf \ --long debug \ --long profile \ --long sshkey: \ --long verbose \ --long quiet \ --long local \ --long hostonly \ --long host-only \ --long no-hostonly \ --long no-host-only \ --long persistent-policy: \ --long fstab \ --long help \ --long bzip2 \ --long lzma \ --long xz \ --long no-compress \ --long gzip \ --long list-modules \ --long show-modules \ --long keep \ --long printsize \ --long regenerate-all \ --long noimageifnotneeded \ --long early-microcode \ --long no-early-microcode \ -- "$@") if (( $? != 0 )); then usage exit 1 fi eval set -- "$TEMP" while :; do case $1 in --kver) kernel="$2"; shift;; -a|--add) push add_dracutmodules_l "$2"; shift;; --force-add) push force_add_dracutmodules_l "$2"; shift;; --add-drivers) push add_drivers_l "$2"; shift;; --omit-drivers) push omit_drivers_l "$2"; shift;; -m|--modules) push dracutmodules_l "$2"; shift;; -o|--omit) push omit_dracutmodules_l "$2"; shift;; -d|--drivers) push drivers_l "$2"; shift;; --filesystems) push filesystems_l "$2"; shift;; -I|--install) push install_items_l "$2"; shift;; --fwdir) push fw_dir_l "$2"; shift;; --libdirs) push libdirs_l "$2"; shift;; --fscks) push fscks_l "$2"; shift;; --add-fstab) push add_fstab_l "$2"; shift;; --mount) push fstab_lines "$2"; shift;; --add-device|--device) push add_device_l "$2"; shift;; --kernel-cmdline) push kernel_cmdline_l "$2"; shift;; --nofscks) nofscks_l="yes";; --ro-mnt) ro_mnt_l="yes";; -k|--kmoddir) drivers_dir_l="$2"; shift;; -c|--conf) conffile="$2"; shift;; --confdir) confdir="$2"; shift;; --tmpdir) tmpdir_l="$2"; shift;; -L|--stdlog) stdloglvl_l="$2"; shift;; --compress) compress_l="$2"; shift;; --prefix) prefix_l="$2"; shift;; -f|--force) force=yes;; --kernel-only) kernel_only="yes"; no_kernel="no";; --no-kernel) kernel_only="no"; no_kernel="yes";; --print-cmdline) print_cmdline="yes"; hostonly_l="yes"; kernel_only="yes"; no_kernel="yes";; --early-microcode) early_microcode_l="yes";; --no-early-microcode) early_microcode_l="no";; --strip) do_strip_l="yes";; --nostrip) do_strip_l="no";; --hardlink) do_hardlink_l="yes";; --nohardlink) do_hardlink_l="no";; --noprefix) prefix_l="/";; --mdadmconf) mdadmconf_l="yes";; --nomdadmconf) mdadmconf_l="no";; --lvmconf) lvmconf_l="yes";; --nolvmconf) lvmconf_l="no";; --debug) debug="yes";; --profile) profile="yes";; --sshkey) sshkey="$2"; shift;; -v|--verbose) ((verbosity_mod_l++));; -q|--quiet) ((verbosity_mod_l--));; -l|--local) allowlocal="yes" [[ -f "$(readlink -f "${0%/*}")/dracut-functions.sh" ]] \ && dracutbasedir="$(readlink -f "${0%/*}")" ;; -H|--hostonly|--host-only) hostonly_l="yes" ;; -N|--no-hostonly|--no-host-only) hostonly_l="no" ;; --persistent-policy) persistent_policy_l="$2"; shift;; --fstab) use_fstab_l="yes" ;; -h|--help) long_usage; exit 1 ;; -i|--include) push include_src "$2" shift;; --bzip2) compress_l="bzip2";; --lzma) compress_l="lzma";; --xz) compress_l="xz";; --no-compress) _no_compress_l="cat";; --gzip) compress_l="gzip";; --list-modules) do_list="yes";; -M|--show-modules) show_modules_l="yes" ;; --keep) keep="yes";; --printsize) printsize="yes";; --regenerate-all) regenerate_all="yes";; --noimageifnotneeded) noimageifnotneeded="yes";; --) shift; break;; *) # should not even reach this point printf "\n!Unknown option: '%s'\n\n" "$1" >&2; usage; exit 1;; esac shift done # getopt cannot handle multiple arguments, so just handle "-I,--include" # the old fashioned way while (($# > 0)); do case ${1%%=*} in ++include) push include_src "$2" push include_target "$3" shift 2;; *) if ! [[ ${outfile+x} ]]; then outfile=$1 elif ! [[ ${kernel+x} ]]; then kernel=$1 else printf "\nUnknown arguments: %s\n\n" "$*" >&2 usage; exit 1; fi ;; esac shift done if [[ $regenerate_all == "yes" ]]; then ret=0 if [[ $kernel ]]; then printf -- "--regenerate-all cannot be called with a kernel version\n" >&2 exit 1 fi if [[ $outfile ]]; then printf -- "--regenerate-all cannot be called with a image file\n" >&2 exit 1 fi ((len=${#dracut_args[@]})) for ((i=0; i < len; i++)); do [[ ${dracut_args[$i]} == "--regenerate-all" ]] && \ unset dracut_args[$i] done cd /lib/modules for i in *; do [[ -f $i/modules.builtin ]] || continue dracut --kver="$i" "${dracut_args[@]}" ((ret+=$?)) done exit $ret elif [[ $kernel ]]; then if ! [[ -d /lib/modules/$kernel ]] && [[ $no_kernel != yes ]]; then printf -- "Kernel version $kernel has no modules in /lib/modules/$kernel\n" >&2 exit 1 fi fi if ! [[ $kernel ]]; then kernel=$(uname -r) fi if ! [[ $outfile ]]; then [[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id if [[ $MACHINE_ID ]] && ( [[ -d /boot/${MACHINE_ID} ]] || [[ -L /boot/${MACHINE_ID} ]] ); then outfile="/boot/${MACHINE_ID}/$kernel/initrd" else outfile="/boot/initramfs-$kernel.img" fi fi for i in /usr/sbin /sbin /usr/bin /bin; do rl=$i if [ -L "$i" ]; then rl=$(readlink -f $i) fi if [[ "$NPATH" != "*:$rl*" ]] ; then NPATH+=":$rl" fi done export PATH="${NPATH#:}" unset LC_MESSAGES unset LC_CTYPE export LC_ALL=C export LANG=C unset NPATH unset LD_LIBRARY_PATH unset GREP_OPTIONS export DRACUT_LOG_LEVEL=warning [[ $debug ]] && { export DRACUT_LOG_LEVEL=debug export PS4='${BASH_SOURCE}@${LINENO}(${FUNCNAME[0]}): '; set -x } [[ $profile ]] && { export PS4='+ $(date "+%s.%N") ${BASH_SOURCE}@${LINENO}: '; set -x debug=yes } [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut # if we were not passed a config file, try the default one if [[ ! -f $conffile ]]; then if [[ $allowlocal ]]; then conffile="$dracutbasedir/dracut.conf" else conffile="/etc/dracut.conf" fi fi if [[ ! -d $confdir ]]; then if [[ $allowlocal ]]; then confdir="$dracutbasedir/dracut.conf.d" else confdir="/etc/dracut.conf.d" fi fi # source our config file [[ -f $conffile ]] && . "$conffile" # source our config dir for f in $(dropindirs_sort ".conf" "$confdir" "$dracutbasedir/dracut.conf.d"); do [[ -e $f ]] && . "$f" done # 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 (( ${#force_add_dracutmodules_l[@]} )); then while pop force_add_dracutmodules_l val; do force_add_dracutmodules+=" $val " done fi if (( ${#fscks_l[@]} )); then while pop fscks_l val; do fscks+=" $val " done fi if (( ${#add_fstab_l[@]} )); then while pop add_fstab_l val; do add_fstab+=" $val " done fi if (( ${#fstab_lines_l[@]} )); then while pop fstab_lines_l val; do push fstab_lines $val done fi if (( ${#install_items_l[@]} )); then while pop install_items_l val; do install_items+=" $val " done fi # these options override the stuff in the config file 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 (( ${#filesystems_l[@]} )); then filesystems='' while pop filesystems_l val; do filesystems+="$val " done fi if (( ${#fw_dir_l[@]} )); then fw_dir='' while pop fw_dir_l val; do fw_dir+="$val " done fi if (( ${#libdirs_l[@]} )); then libdirs='' while pop libdirs_l val; do libdirs+="$val " done fi [[ $stdloglvl_l ]] && stdloglvl=$stdloglvl_l [[ ! $stdloglvl ]] && stdloglvl=4 stdloglvl=$((stdloglvl + verbosity_mod_l)) ((stdloglvl > 6)) && stdloglvl=6 ((stdloglvl < 0)) && stdloglvl=0 [[ $drivers_dir_l ]] && drivers_dir=$drivers_dir_l [[ $do_strip_l ]] && do_strip=$do_strip_l [[ $do_strip ]] || do_strip=yes [[ $do_hardlink_l ]] && do_hardlink=$do_hardlink_l [[ $do_hardlink ]] || do_hardlink=yes [[ $prefix_l ]] && prefix=$prefix_l [[ $prefix = "/" ]] && unset prefix [[ $hostonly_l ]] && hostonly=$hostonly_l [[ $persistent_policy_l ]] && persistent_policy=$persistent_policy_l [[ $use_fstab_l ]] && use_fstab=$use_fstab_l [[ $mdadmconf_l ]] && mdadmconf=$mdadmconf_l [[ $lvmconf_l ]] && lvmconf=$lvmconf_l [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut [[ $fw_dir ]] || fw_dir="/lib/firmware/updates /lib/firmware" [[ $tmpdir_l ]] && tmpdir="$tmpdir_l" [[ $tmpdir ]] || tmpdir=/var/tmp [[ $compress_l ]] && compress=$compress_l [[ $show_modules_l ]] && show_modules=$show_modules_l [[ $nofscks_l ]] && nofscks="yes" [[ $ro_mnt_l ]] && ro_mnt="yes" [[ $early_microcode_l ]] && early_microcode=$early_microcode_l [[ $early_microcode ]] || early_microcode=no # eliminate IFS hackery when messing with fw_dir fw_dir=${fw_dir//:/ } # handle compression options. [[ $compress ]] || compress="gzip" case $compress in bzip2) compress="bzip2 -9";; lzma) compress="lzma -9";; xz) compress="xz --check=crc32 --lzma2=dict=1MiB";; gzip) compress="gzip -9"; command -v pigz > /dev/null 2>&1 && compress="pigz -9";; esac if [[ $_no_compress_l = "cat" ]]; then compress="cat" fi [[ $hostonly = yes ]] && hostonly="-h" [[ $hostonly != "-h" ]] && unset hostonly readonly TMPDIR="$tmpdir" readonly initdir="$(mktemp --tmpdir="$TMPDIR/" -d -t initramfs.XXXXXX)" [ -d "$initdir" ] || { printf "%s\n" "dracut: mktemp --tmpdir=\"$TMPDIR/\" -d -t initramfs.XXXXXX failed." >&2 exit 1 } if [[ $early_microcode = yes ]]; then readonly microcode_dir="$(mktemp --tmpdir="$TMPDIR/" -d -t early_microcode.XXXXXX)" [ -d "$microcode_dir" ] || { printf "%s\n" "dracut: mktemp --tmpdir=\"$TMPDIR/\" -d -t early_microcode.XXXXXX failed." >&2 exit 1 } fi # clean up after ourselves no matter how we die. trap ' ret=$?; [[ $outfile ]] && [[ -f $outfile.$$ ]] && rm -f -- "$outfile.$$"; [[ $keep ]] && echo "Not removing $initdir." >&2 || { [[ $initdir ]] && rm -rf -- "$initdir"; }; [[ $keep ]] && echo "Not removing $microcode_dir." >&2 || { [[ $microcode_dir ]] && rm -Rf -- "$microcode_dir"; }; [[ $_dlogdir ]] && rm -Rf -- "$_dlogdir"; exit $ret; ' EXIT # clean up after ourselves no matter how we die. trap 'exit 1;' SIGINT export DRACUT_KERNEL_LAZY="1" export DRACUT_RESOLVE_LAZY="1" if [[ -f $dracutbasedir/dracut-functions.sh ]]; then . $dracutbasedir/dracut-functions.sh else printf "%s\n" "dracut: Cannot find $dracutbasedir/dracut-functions.sh." >&2 printf "%s\n" "dracut: Are you running from a git checkout?" >&2 printf "%s\n" "dracut: Try passing -l as an argument to $0" >&2 exit 1 fi if ! [[ $print_cmdline ]]; then inst /bin/sh if ! $DRACUT_INSTALL ${initdir:+-D "$initdir"} -R "$initdir/bin/sh" &>/dev/null; then unset DRACUT_RESOLVE_LAZY export DRACUT_RESOLVE_DEPS=1 fi rm -fr -- ${initdir}/* fi if [[ -f $dracutbasedir/dracut-version.sh ]]; then . $dracutbasedir/dracut-version.sh fi # Verify bash version, current minimum is 3.1 if (( BASH_VERSINFO[0] < 4 )); then dfatal 'You need at least Bash 4 to use dracut, sorry.' exit 1 fi dracutfunctions=$dracutbasedir/dracut-functions.sh export dracutfunctions if (( ${#drivers_l[@]} )); then drivers='' while pop drivers_l val; do drivers+="$val " done fi drivers=${drivers/-/_} if (( ${#add_drivers_l[@]} )); then while pop add_drivers_l val; do add_drivers+=" $val " done fi add_drivers=${add_drivers/-/_} if (( ${#omit_drivers_l[@]} )); then while pop omit_drivers_l val; do omit_drivers+=" $val " done fi omit_drivers=${omit_drivers/-/_} if (( ${#kernel_cmdline_l[@]} )); then while pop kernel_cmdline_l val; do kernel_cmdline+=" $val " done fi omit_drivers_corrected="" for d in $omit_drivers; do [[ " $drivers $add_drivers " == *\ $d\ * ]] && continue omit_drivers_corrected+="$d|" done omit_drivers="${omit_drivers_corrected%|}" unset omit_drivers_corrected # prepare args for logging for ((i=0; i < ${#dracut_args[@]}; i++)); do [[ "${dracut_args[$i]}" == *\ * ]] && \ dracut_args[$i]="\"${dracut_args[$i]}\"" #" keep vim happy done 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 $mod/module-setup.sh ]] || continue printf "%s\n" "${mod##*/??}" done exit 0 } # This is kinda legacy -- eventually it should go away. case $dracutmodules in ""|auto) dracutmodules="all" ;; esac abs_outfile=$(readlink -f "$outfile") && outfile="$abs_outfile" if [[ -d $srcmods ]]; then [[ -f $srcmods/modules.dep ]] || { dwarn "$srcmods/modules.dep is missing. Did you run depmod?" } fi if [[ -f $outfile && ! $force && ! $print_cmdline ]]; then dfatal "Will not override existing initramfs ($outfile) without --force" exit 1 fi # Need to be able to have non-root users read stuff (rpcbind etc) chmod 755 "$initdir" if [[ $hostonly ]]; then for i in /sys /proc /run /dev; do if ! findmnt --target "$i" &>/dev/null; then dwarning "Turning off host-only mode: '$i' is not mounted!" unset hostonly fi done fi declare -A host_fs_types for line in "${fstab_lines[@]}"; do set -- $line #dev mp fs fsopts push host_devs "$1" host_fs_types["$1"]="$3" done for f in $add_fstab; do [[ -e $f ]] || continue while read dev rest; do push host_devs "$dev" done < "$f" done for dev in $add_device; do push host_devs "$dev" done if (( ${#add_device_l[@]} )); then while pop add_device_l val; do add_device+=" $val " push host_devs "$val" done fi if [[ $hostonly ]]; then # in hostonly mode, determine all devices, which have to be accessed # and examine them for filesystem types for mp in \ "/" \ "/etc" \ "/bin" \ "/sbin" \ "/lib" \ "/lib64" \ "/usr" \ "/usr/bin" \ "/usr/sbin" \ "/usr/lib" \ "/usr/lib64" \ "/boot"; do mp=$(readlink -f "$mp") mountpoint "$mp" >/dev/null 2>&1 || continue _dev=$(find_block_device "$mp") _bdev=$(readlink -f "/dev/block/$_dev") [[ -b $_bdev ]] && _dev=$_bdev push host_devs $_dev [[ "$_mp" == "/" ]] && root_dev="$_dev" push host_devs "$_dev" done if [[ -f /proc/swaps ]] && [[ -f /etc/fstab ]]; then while read dev type rest; do [[ -b $dev ]] || continue [[ "$type" == "partition" ]] || continue while read _d _m _t _o _r; do [[ "$_d" == \#* ]] && continue [[ $_d ]] || continue [[ $_t != "swap" ]] && continue [[ $_m != "swap" ]] && [[ $_m != "none" ]] && continue [[ "$_o" == *noauto* ]] && continue _d=$(expand_persistent_dev "$_d") [[ "$_d" -ef "$dev" ]] || continue if [[ -f /etc/crypttab ]]; then while read _mapper _a _p _o; do [[ $_mapper = \#* ]] && continue [[ "$_d" -ef /dev/mapper/"$_mapper" ]] || continue [[ "$_o" ]] || _o="$_p" # skip mkswap swap [[ $_o == *swap* ]] && continue 2 done < /etc/crypttab fi push host_devs "$(readlink -f "$dev")" break done < /etc/fstab done < /proc/swaps fi # record all host modaliases declare -A host_modalias find /sys/devices/ -name modalias -print > "$initdir/.modalias" while read m; do host_modalias["$(<"$m")"]=1 done < "$initdir/.modalias" rm -f -- "$initdir/.modalias" # check /proc/modules declare -A host_modules while read m rest; do host_modules["$m"]=1 done </proc/modules fi unset m unset rest _get_fs_type() { [[ $1 ]] || return if [[ -b /dev/block/$1 ]] && ID_FS_TYPE=$(get_fs_env "/dev/block/$1"); then host_fs_types["$(readlink -f "/dev/block/$1")"]="$ID_FS_TYPE" return 1 fi if [[ -b $1 ]] && ID_FS_TYPE=$(get_fs_env "$1"); then host_fs_types["$(readlink -f "$1")"]="$ID_FS_TYPE" return 1 fi if fstype=$(find_dev_fstype "$1"); then host_fs_types["$1"]="$fstype" return 1 fi return 1 } for dev in ${host_devs[@]}; do _get_fs_type "$dev" check_block_and_slaves_all _get_fs_type "$(get_maj_min "$dev")" done for dev in "${!host_fs_types[@]}"; do [[ ${host_fs_types[$dev]} = "reiserfs" ]] || [[ ${host_fs_types[$dev]} = "xfs" ]] || continue rootopts=$(find_dev_fsopts "$dev") if [[ ${host_fs_types[$dev]} = "reiserfs" ]]; then journaldev=$(fs_get_option $rootopts "jdev") elif [[ ${host_fs_types[$dev]} = "xfs" ]]; then journaldev=$(fs_get_option $rootopts "logdev") fi if [[ $journaldev ]]; then dev="$(readlink -f "$dev")" push host_devs "$dev" _get_fs_type "$dev" check_block_and_slaves_all _get_fs_type "$(get_maj_min "$dev")" fi done [[ -d $udevdir ]] \ || udevdir="$(pkg-config udev --variable=udevdir 2>/dev/null)" if ! [[ -d "$udevdir" ]]; then [[ -d /lib/udev ]] && udevdir=/lib/udev [[ -d /usr/lib/udev ]] && udevdir=/usr/lib/udev fi [[ -d $systemdutildir ]] \ || systemdutildir=$(pkg-config systemd --variable=systemdutildir 2>/dev/null) if ! [[ -d "$systemdutildir" ]]; then [[ -d /lib/systemd ]] && systemdutildir=/lib/systemd [[ -d /usr/lib/systemd ]] && systemdutildir=/usr/lib/systemd fi [[ -d $systemdsystemunitdir ]] \ || systemdsystemunitdir=$(pkg-config systemd --variable=systemdsystemunitdir 2>/dev/null) [[ -d "$systemdsystemunitdir" ]] || systemdsystemunitdir=${systemdutildir}/system [[ -d $systemdsystemconfdir ]] \ || systemdsystemconfdir=$(pkg-config systemd --variable=systemdsystemconfdir 2>/dev/null) [[ -d "$systemdsystemconfdir" ]] || systemdsystemconfdir=/etc/systemd/system export initdir dracutbasedir dracutmodules \ fw_dir drivers_dir debug no_kernel kernel_only \ omit_drivers mdadmconf lvmconf root_dev \ use_fstab fstab_lines libdirs fscks nofscks ro_mnt \ stdloglvl sysloglvl fileloglvl kmsgloglvl logfile \ debug host_fs_types host_devs sshkey add_fstab \ DRACUT_VERSION udevdir prefix filesystems drivers \ systemdutildir systemdsystemunitdir systemdsystemconfdir \ host_modalias host_modules mods_to_load="" # check all our modules to see if they should be sourced. # This builds a list of modules that we will install next. for_each_module_dir check_module for_each_module_dir check_mount dracut_module_included "fips" && export DRACUT_FIPS_MODE=1 if [[ $print_cmdline ]]; then modules_loaded=" " # source our modules. for moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do _d_mod=${moddir##*/}; _d_mod=${_d_mod#[0-9][0-9]} module_cmdline "$_d_mod" done unset moddir printf "\n" exit 0 fi outdir=${outfile%/*} [[ $outdir ]] || outdir="/" if [[ ! -d "$outdir" ]]; then dfatal "Can't write to $outdir: Directory $outdir does not exist or is not accessible." exit 1 elif [[ ! -w "$outdir" ]]; then dfatal "No permission to write to $outdir." exit 1 elif [[ -f "$outfile" && ! -w "$outfile" ]]; then dfatal "No permission to write $outfile." exit 1 fi # Create some directory structure first [[ $prefix ]] && mkdir -m 0755 -p "${initdir}${prefix}" [[ -h /lib ]] || mkdir -m 0755 -p "${initdir}${prefix}/lib" [[ $prefix ]] && ln -sfn "${prefix#/}/lib" "$initdir/lib" if [[ $prefix ]]; then for d in bin etc lib sbin tmp usr var $libdirs; do [[ "$d" == */* ]] && continue ln -sfn "${prefix#/}/${d#/}" "$initdir/$d" done fi if [[ $kernel_only != yes ]]; then for d in usr/bin usr/sbin bin etc lib sbin tmp usr var $libdirs; do [[ -e "${initdir}${prefix}/$d" ]] && continue if [ -L "/$d" ]; then inst_symlink "/$d" "${prefix}/$d" else mkdir -m 0755 -p "${initdir}${prefix}/$d" fi done for d in dev proc sys sysroot root run run/lock run/initramfs; do if [ -L "/$d" ]; then inst_symlink "/$d" else mkdir -m 0755 -p "$initdir/$d" fi done ln -sfn ../run "$initdir/var/run" ln -sfn ../run/lock "$initdir/var/lock" ln -sfn ../run/log "$initdir/var/log" else for d in lib "$libdir"; do [[ -e "${initdir}${prefix}/$d" ]] && continue if [ -h "/$d" ]; then inst "/$d" "${prefix}/$d" else mkdir -m 0755 -p "${initdir}${prefix}/$d" fi done fi if [[ $kernel_only != yes ]]; then mkdir -p "${initdir}/etc/cmdline.d" for _d in $hookdirs; do mkdir -m 0755 -p ${initdir}/lib/dracut/hooks/$_d done if [[ "$UID" = "0" ]]; then [ -c ${initdir}/dev/null ] || mknod ${initdir}/dev/null c 1 3 [ -c ${initdir}/dev/kmsg ] || mknod ${initdir}/dev/kmsg c 1 11 [ -c ${initdir}/dev/console ] || mknod ${initdir}/dev/console c 5 1 fi fi _isize=0 #initramfs size modules_loaded=" " # source our modules. for moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do _d_mod=${moddir##*/}; _d_mod=${_d_mod#[0-9][0-9]} if [[ "$mods_to_load" == *\ $_d_mod\ * ]]; then if [[ $show_modules = yes ]]; then printf "%s\n" "$_d_mod" else dinfo "*** Including module: $_d_mod ***" fi if [[ $kernel_only == yes ]]; then module_installkernel "$_d_mod" || { dfatal "installkernel failed in module $_d_mod" exit 1 } else module_install "$_d_mod" if [[ $no_kernel != yes ]]; then module_installkernel "$_d_mod" || { dfatal "installkernel failed in module $_d_mod" exit 1 } fi fi mods_to_load=${mods_to_load// $_d_mod /} modules_loaded+="$_d_mod " #print the module install size if [ -n "$printsize" ]; then _isize_new=$(du -sk ${initdir}|cut -f1) _isize_delta=$((_isize_new - _isize)) printf "%s\n" "$_d_mod install size: ${_isize_delta}k" _isize=$_isize_new fi fi done unset moddir for i in $modules_loaded; do mkdir -p $initdir/lib/dracut printf "%s\n" "$i" >> $initdir/lib/dracut/modules.txt done dinfo "*** Including modules done ***" ## final stuff that has to happen if [[ $no_kernel != yes ]]; then if [[ $drivers ]]; then hostonly='' instmods $drivers fi if [[ $add_drivers ]]; then hostonly='' instmods -c $add_drivers fi if [[ $filesystems ]]; then hostonly='' instmods -c $filesystems fi dinfo "*** Installing kernel module dependencies and firmware ***" dracut_kernel_post dinfo "*** Installing kernel module dependencies and firmware done ***" if [[ $noimageifnotneeded == yes ]] && [[ $hostonly ]]; then if [[ ! -f "$initdir/lib/dracut/need-initqueue" ]] && \ [[ -f ${initdir}/lib/modules/$kernel/modules.dep && ! -s ${initdir}/lib/modules/$kernel/modules.dep ]]; then for i in ${initdir}/etc/cmdline.d/*.conf; do # We need no initramfs image and do not generate one. [[ $i == "${initdir}/etc/cmdline.d/*.conf" ]] && exit 0 done fi fi fi if [[ $kernel_only != yes ]]; then (( ${#install_items[@]} > 0 )) && inst_multiple ${install_items[@]} [[ $kernel_cmdline ]] && printf "%s\n" "$kernel_cmdline" >> "${initdir}/etc/cmdline.d/01-default.conf" while pop fstab_lines line; do printf "%s\n" "$line 0 0" >> "${initdir}/etc/fstab" done for f in $add_fstab; do cat "$f" >> "${initdir}/etc/fstab" done if [ -d ${initdir}/$systemdutildir ]; then mkdir -p ${initdir}/etc/conf.d { printf "%s\n" "systemdutildir=\"$systemdutildir\"" printf "%s\n" "systemdsystemunitdir=\"$systemdsystemunitdir\"" printf "%s\n" "systemdsystemconfdir=\"$systemdsystemconfdir\"" } > ${initdir}/etc/conf.d/systemd.conf fi if [[ $DRACUT_RESOLVE_LAZY ]] && [[ $DRACUT_INSTALL ]]; then dinfo "*** Resolving executable dependencies ***" find "$initdir" -type f \ '(' -perm -0100 -or -perm -0010 -or -perm -0001 ')' \ -not -path '*.ko' -print0 \ | xargs -r -0 $DRACUT_INSTALL ${initdir:+-D "$initdir"} -R ${DRACUT_FIPS_MODE:+-H} -- dinfo "*** Resolving executable dependencies done***" fi fi while pop include_src src && pop include_target tgt; do if [[ $src && $tgt ]]; then if [[ -f $src ]]; then inst $src $tgt else ddebug "Including directory: $src" mkdir -p "${initdir}/${tgt}" # check for preexisting symlinks, so we can cope with the # symlinks to $prefix for i in "$src"/*; do [[ -e "$i" || -h "$i" ]] || continue s=${initdir}/${tgt}/${i#$src/} if [[ -d "$i" ]]; then if ! [[ -e "$s" ]]; then mkdir -m 0755 -p "$s" chmod --reference="$i" "$s" fi cp --reflink=auto --sparse=auto -fa -t "$s" "$i"/* else cp --reflink=auto --sparse=auto -fa -t "$s" "$i" fi done fi fi done if [[ $kernel_only != yes ]]; then # make sure that library links are correct and up to date for f in /etc/ld.so.conf /etc/ld.so.conf.d/*; do [[ -f $f ]] && inst_simple "$f" done if ! ldconfig -r "$initdir"; then if [[ $UID = 0 ]]; then derror "ldconfig exited ungracefully" else derror "ldconfig might need uid=0 (root) for chroot()" fi fi fi PRELINK_BIN="$(command -v prelink)" if [[ $UID = 0 ]] && [[ $PRELINK_BIN ]]; then if [[ $DRACUT_FIPS_MODE ]]; then dinfo "*** Installing prelink files ***" inst_multiple -o prelink /etc/prelink.conf /etc/prelink.conf.d/*.conf /etc/prelink.cache else dinfo "*** Pre-linking files ***" inst_multiple -o prelink /etc/prelink.conf /etc/prelink.conf.d/*.conf chroot "$initdir" "$PRELINK_BIN" -a rm -f -- "$initdir/$PRELINK_BIN" rm -fr -- "$initdir"/etc/prelink.* dinfo "*** Pre-linking files done ***" fi fi if [[ $do_hardlink = yes ]] && command -v hardlink >/dev/null; then dinfo "*** Hardlinking files ***" hardlink "$initdir" 2>&1 dinfo "*** Hardlinking files done ***" fi # strip binaries if [[ $do_strip = yes ]] ; then for p in strip xargs find; do if ! type -P $p >/dev/null; then dinfo "Could not find '$p'. Not stripping the initramfs." do_strip=no fi done fi if [[ $do_strip = yes ]] && ! [[ $DRACUT_FIPS_MODE ]]; then dinfo "*** Stripping files ***" find "$initdir" -type f \ -executable -not -path '*/lib/modules/*.ko' -print0 \ | xargs -r -0 strip -g 2>/dev/null # strip kernel modules, but do not touch signed modules find "$initdir" -type f -path '*/lib/modules/*.ko' -print0 \ | while read -r -d $'\0' f; do SIG=$(tail -c 28 "$f") [[ $SIG == '~Module signature appended~' ]] || { printf "%s\000" "$f"; } done | xargs -r -0 strip -g dinfo "*** Stripping files done ***" fi if [[ $early_microcode = yes ]]; then dinfo "*** Generating early-microcode cpio image ***" ucode_dir=(amd-ucode intel-ucode) ucode_dest=(AuthenticAMD.bin GenuineIntel.bin) _dest_dir="$microcode_dir/d/kernel/x86/microcode" _dest_idx="0 1" mkdir -p $_dest_dir if [[ $hostonly ]]; then [[ $(get_cpu_vendor) == "AMD" ]] && _dest_idx="0" [[ $(get_cpu_vendor) == "Intel" ]] && _dest_idx="1" fi for idx in $_dest_idx; do _fw=${ucode_dir[$idx]} for _fwdir in $fw_dir; do if [[ -d $_fwdir && -d $_fwdir/$_fw ]]; then _src="*" dinfo "*** Constructing ${ucode_dest[$idx]} ****" if [[ $hostonly ]]; then _src=$(get_ucode_file) fi cat $_fwdir/$_fw/$_src > $_dest_dir/${ucode_dest[$idx]} fi done done (cd "$microcode_dir/d"; find . -print0 | cpio --null -o -H newc --quiet >../ucode.cpio) fi rm -f -- "$outfile" dinfo "*** Creating image file ***" if [[ $early_microcode = yes ]]; then # The microcode blob is _before_ the initramfs blob, not after mv $microcode_dir/ucode.cpio $outfile.$$ fi if ! ( umask 077; cd "$initdir"; find . -print0 | cpio --null -R 0:0 -H newc -o --quiet| \ $compress >> "$outfile.$$"; ); then dfatal "dracut: creation of $outfile.$$ failed" exit 1 fi mv -- "$outfile.$$" "$outfile" dinfo "*** Creating image file done ***" if (( maxloglvl >= 5 )); then if [[ $allowlocal ]]; then "$dracutbasedir/lsinitrd.sh" "$outfile"| ddebug else lsinitrd "$outfile"| ddebug fi fi exit 0