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dracut.sh
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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
--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
--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=$1; shift
local -a files
local f d
readarray -t files < <(
for d in "$@"; do
for i in "$d/"*"$suffix"; do
if [[ -e "$i" ]]; then
printf "%s" "${i##*/}"
fi
done
done | sort -Vu
)
for f in "${files[@]}"; do
for d in "$@"; do
if [[ -e "$d/$f" ]]; then
printf "%s" "$d/$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=$(unset POSIXLY_CORRECT; getopt \
-o "a:m:o:d:I:k:c:L:fvqlHhMN" \
--long kver: \
--long add: \
--long force-add: \
--long add-drivers: \
--long omit-drivers: \
--long modules: \
--long omit: \
--long drivers: \
--long filesystems: \
--long install: \
--long fwdir: \
--long libdirs: \
--long fscks: \
--long add-fstab: \
--long mount: \
--long device: \
--long nofscks: \
--long ro-mnt \
--long kmoddir: \
--long conf: \
--long confdir: \
--long tmpdir: \
--long stdlog: \
--long compress: \
--long prefix: \
--long force \
--long kernel-only \
--long no-kernel \
--long kernel-cmdline: \
--long strip \
--long nostrip \
--long hardlink \
--long nohardlink \
--long noprefix \
--long mdadmconf \
--long nomdadmconf \
--long lvmconf \
--long nolvmconf \
--long debug \
--long profile \
--long sshkey: \
--long verbose \
--long quiet \
--long local \
--long hostonly \
--long host-only \
--long no-hostonly \
--long no-host-only \
--long fstab \
--long help \
--long bzip2 \
--long lzma \
--long xz \
--long no-compress \
--long gzip \
--long list-modules \
--long show-modules \
--long keep \
--long printsize \
--long regenerate-all \
--long noimageifnotneeded \
-- "$@")
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";;
--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" ;;
--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
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
[[ $use_fstab_l ]] && use_fstab=$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"
[[ $ro_mnt_l ]] && ro_mnt="yes"
# eliminate IFS hackery when messing with fw_dir
fw_dir=${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
}
# clean up after ourselves no matter how we die.
trap 'ret=$?;[[ $outfile ]] && [[ -f $outfile.$$ ]] && rm -f -- "$outfile.$$";[[ $keep ]] && printf "%s\n" "Not removing $initdir." >&2 || { [[ $initdir ]] && rm -rf -- "$initdir";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
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}/*
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
ddebug "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 && ! $force ]]; then
dfatal "Will not override existing initramfs ($outfile) without --force"
exit 1
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 $outfile."
exit 1
fi
# Need to be able to have non-root users read stuff (rpcbind etc)
chmod 755 "$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: '$i' is not mounted!"
unset hostonly
fi
done
if ! [[ -d /run/udev/data ]]; then
dwarning "Turning off host-only mode: udev database not found!"
unset hostonly
fi
fi
declare -A host_fs_types
for line in "${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 [[ $hostonly ]]; then
# in hostonly mode, determine all devices, which have to be accessed
# and examine them for filesystem types
for mp in \
"/" \
"/etc" \
"/usr" \
"/usr/bin" \
"/usr/sbin" \
"/usr/lib" \
"/usr/lib64" \
"/boot";
do
mountpoint "$mp" >/dev/null 2>&1 || continue
push host_devs "$(readlink -f "/dev/block/$(find_block_device "$mp")")"
done
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" ]] || [[ $_m != "swap" ]] && continue
[[ "$_o" == *noauto* ]] && continue
[[ "$_d" == UUID\=* ]] && _d="/dev/disk/by-uuid/${_d#UUID=}"
[[ "$_d" == LABEL\=* ]] && _d="/dev/disk/by-label/$_d#LABEL=}"
[[ "$_d" -ef "$dev" ]] || continue
while read _mapper _a _p _o; do
[[ $_mapper = \#* ]] && continue
[[ "$_d" -ef /dev/mapper/"$_mapper" ]] || continue
[[ "$_o" ]] || _o="$_p"
# skip mkswap swap
[[ $_o == *swap* ]] && continue 2
done < /etc/crypttab
push host_devs "$(readlink -f "$dev")"
break
done < /etc/fstab
done < /proc/swaps
fi
_get_fs_type() { (
[[ $1 ]] || return
if [[ -b /dev/block/$1 ]] && ID_FS_TYPE=$(get_fs_env "/dev/block/$1"); then
printf "%s\n" "$(readlink -f "/dev/block/$1")" "$ID_FS_TYPE"
return 1
fi
if [[ -b $1 ]] && ID_FS_TYPE=$(get_fs_env "$1"); then
printf "%s\n" "$(readlink -f "$1")" "$ID_FS_TYPE"
return 1
fi
if fstype=$(find_dev_fstype "$1"); then
printf "%s\n" "$1" "$fstype"
return 1
fi
return 1
) }
for dev in "${host_devs[@]}"; do
while read key; do
read val
host_fs_types["$key"]="$val"
done < <(
_get_fs_type "$dev"
check_block_and_slaves_all _get_fs_type "$(get_maj_min "$dev")"
)
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 \
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
# 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