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dracut.sh
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#!/bin/bash -p
#
# 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
unset BASH_ENV
# Verify bash version, current minimum is 4
if (( BASH_VERSINFO[0] < 4 )); then
printf -- 'You need at least Bash 4 to use dracut, sorry.' >&2
exit 1
fi
dracut_args=( "$@" )
readonly dracut_cmd="$(readlink -f $0)"
set -o pipefail
usage() {
[[ $sysroot_l ]] && dracutsysrootdir="$sysroot_l"
[[ $dracutbasedir ]] || dracutbasedir=$dracutsysrootdir/usr/lib/dracut
if [[ -f $dracutbasedir/dracut-version.sh ]]; then
. $dracutbasedir/dracut-version.sh
fi
# 80x25 linebreak here ^
cat << EOF
Usage: $dracut_cmd [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() {
[[ $dracutbasedir ]] || dracutbasedir=$dracutsysrootdir/usr/lib/dracut
if [[ -f $dracutbasedir/dracut-version.sh ]]; then
. $dracutbasedir/dracut-version.sh
fi
# 80x25 linebreak here ^
cat << EOF
Usage: $dracut_cmd [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.
--rebuild Append arguments to those of existing image and rebuild
-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.
--force-drivers [LIST] Specify a space-separated list of kernel
modules to add to the initramfs and make sure they
are tried to be loaded via modprobe same as passing
rd.driver.pre=DRIVER kernel parameter.
--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.
-r, --sysroot [DIR] Specify sysroot directory to collect files from.
-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
--hostonly-mode <mode>
Specify the hostonly mode to use. <mode> could be
one of "sloppy" or "strict". "sloppy" mode is used
by default.
In "sloppy" hostonly mode, extra drivers and modules
will be installed, so minor hardware change won't make
the image unbootable (eg. changed keyboard), and the
image is still portable among similar hosts.
With "strict" mode enabled, anything not necessary
for booting the local host in its current state will
not be included, and modules may do some extra job
to save more space. Minor change of hardware or
environment could make the image unbootable.
DO NOT use "strict" mode unless you know what you
are doing.
--hostonly-cmdline Store kernel command line arguments needed
in the initramfs
--no-hostonly-cmdline Do not store kernel command line arguments needed
in the initramfs
--no-hostonly-default-device
Do not generate implicit host devices like root,
swap, fstab, etc. Use "--mount" or "--add-device"
to explicitly add devices as needed.
--hostonly-i18n Install only needed keyboard and font files according
to the host configuration (default).
--no-hostonly-i18n Install all keyboard and font files available.
--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
--mount "[MP]" Same as above, but [DEV], [FSTYPE] and [FSOPTS] are
determined by looking at the current mounts.
--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.
--install-optional [LIST] Install the space separated list of files into the
initramfs, if they exist.
--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.
--lzo Compress the generated initramfs using lzop.
Make sure that your kernel has lzo support compiled
in, otherwise you will not be able to boot.
--lz4 Compress the generated initramfs using lz4.
Make sure that your kernel has lz4 support compiled
in, otherwise you will not be able to boot.
--zstd Compress the generated initramfs using Zstandard.
Make sure that your kernel has zstd 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)
--logfile [FILE] Logfile to use (overrides configuration setting)
--reproducible Create reproducible images
--no-reproducible Do not create reproducible images
--loginstall [DIR] Log all files installed from the host to [DIR]
--uefi Create an UEFI executable with the kernel cmdline and
kernel combined
--uefi-stub [FILE] Use the UEFI stub [FILE] to create an UEFI executable
--kernel-image [FILE] location of the kernel image
If [LIST] has multiple arguments, then you have to put these in quotes.
For example:
# dracut --add-drivers "module1 module2" ...
EOF
}
# Fills up host_devs stack variable and makes sure there are no duplicates
push_host_devs() {
local _dev
for _dev in "$@"; do
[[ " ${host_devs[@]} " == *" $_dev "* ]] && return
host_devs+=( "$_dev" )
done
}
# 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
}
}
rearrange_params()
{
# Workaround -i, --include taking 2 arguments
newat=()
for i in "$@"; do
if [[ $i == "-i" ]] || [[ $i == "--include" ]]; then
newat+=("++include") # Replace --include by ++include
else
newat+=("$i")
fi
done
set -- "${newat[@]}" # Set new $@
TEMP=$(unset POSIXLY_CORRECT; getopt \
-o "a:m:o:d:I:k:c:r:L:fvqlHhMN" \
--long kver: \
--long add: \
--long force-add: \
--long add-drivers: \
--long force-drivers: \
--long omit-drivers: \
--long modules: \
--long omit: \
--long drivers: \
--long filesystems: \
--long install: \
--long install-optional: \
--long fwdir: \
--long libdirs: \
--long fscks: \
--long add-fstab: \
--long mount: \
--long device: \
--long add-device: \
--long nofscks \
--long ro-mnt \
--long kmoddir: \
--long conf: \
--long confdir: \
--long tmpdir: \
--long sysroot: \
--long stdlog: \
--long compress: \
--long prefix: \
--long rebuild: \
--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 logfile: \
--long verbose \
--long quiet \
--long local \
--long hostonly \
--long host-only \
--long no-hostonly \
--long no-host-only \
--long hostonly-mode: \
--long hostonly-cmdline \
--long no-hostonly-cmdline \
--long no-hostonly-default-device \
--long persistent-policy: \
--long fstab \
--long help \
--long bzip2 \
--long lzma \
--long xz \
--long lzo \
--long lz4 \
--long zstd \
--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 \
--long reproducible \
--long no-reproducible \
--long loginstall: \
--long uefi \
--long uefi-stub: \
--long kernel-image: \
--long no-hostonly-i18n \
--long hostonly-i18n \
--long no-machineid \
-- "$@")
if (( $? != 0 )); then
usage
exit 1
fi
}
verbosity_mod_l=0
unset kernel
unset outfile
rearrange_params "$@"
eval set -- "$TEMP"
# parse command line args to check if '--rebuild' option is present
unset append_args_l
unset rebuild_file
while :
do
if [ "$1" == "--" ]; then
shift; break
fi
if [ "$1" == "--rebuild" ]; then
append_args_l="yes"
rebuild_file=$2
if [ ! -e $rebuild_file ]; then
echo "Image file '$rebuild_file', for rebuild, does not exist!"
exit 1
fi
abs_rebuild_file=$(readlink -f "$rebuild_file") && rebuild_file="$abs_rebuild_file"
shift; continue
fi
shift
done
# get output file name and kernel version from command line arguments
while (($# > 0)); do
case ${1%%=*} in
++include)
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
# extract input image file provided with rebuild option to get previous parameters, if any
if [[ $append_args_l == "yes" ]]; then
unset rebuild_param
# determine resultant file
if ! [[ $outfile ]]; then
outfile=$rebuild_file
fi
if ! rebuild_param=$(lsinitrd $rebuild_file '*lib/dracut/build-parameter.txt'); then
echo "Image '$rebuild_file' has no rebuild information stored"
exit 1
fi
# prepend previous parameters to current command line args
if [[ $rebuild_param ]]; then
TEMP="$rebuild_param $TEMP"
eval set -- "$TEMP"
rearrange_params "$@"
fi
fi
unset PARMS_TO_STORE
PARMS_TO_STORE=""
eval set -- "$TEMP"
while :; do
if [ $1 != "--" ] && [ $1 != "--rebuild" ]; then
PARMS_TO_STORE+=" $1";
fi
case $1 in
--kver) kernel="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
-a|--add) add_dracutmodules_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--force-add) force_add_dracutmodules_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--add-drivers) add_drivers_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--force-drivers) force_drivers_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--omit-drivers) omit_drivers_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
-m|--modules) dracutmodules_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
-o|--omit) omit_dracutmodules_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
-d|--drivers) drivers_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--filesystems) filesystems_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
-I|--install) install_items_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--install-optional) install_optional_items_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--fwdir) fw_dir_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--libdirs) libdirs_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--fscks) fscks_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--add-fstab) add_fstab_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--mount) fstab_lines+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--add-device|--device) add_device_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--kernel-cmdline) kernel_cmdline_l+=("$2"); PARMS_TO_STORE+=" '$2'"; shift;;
--nofscks) nofscks_l="yes";;
--ro-mnt) ro_mnt_l="yes";;
-k|--kmoddir) drivers_dir_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
-c|--conf) conffile="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--confdir) confdir="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--tmpdir) tmpdir_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
-r|--sysroot) sysroot_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
-L|--stdlog) stdloglvl_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--compress) compress_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--prefix) prefix_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--loginstall) loginstall_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--rebuild) if [ $rebuild_file == $outfile ]; then
force=yes
fi
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"; PARMS_TO_STORE+=" '$2'"; shift;;
--logfile) logfile_l="$2"; shift;;
-v|--verbose) ((verbosity_mod_l++));;
-q|--quiet) ((verbosity_mod_l--));;
-l|--local)
allowlocal="yes"
[[ -f "$(readlink -f "${0%/*}")/dracut-init.sh" ]] \
&& dracutbasedir="$(readlink -f "${0%/*}")"
;;
-H|--hostonly|--host-only)
hostonly_l="yes" ;;
-N|--no-hostonly|--no-host-only)
hostonly_l="no" ;;
--hostonly-mode)
hostonly_mode_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--hostonly-cmdline)
hostonly_cmdline_l="yes" ;;
--hostonly-i18n)
i18n_install_all_l="no" ;;
--no-hostonly-i18n)
i18n_install_all_l="yes" ;;
--no-hostonly-cmdline)
hostonly_cmdline_l="no" ;;
--no-hostonly-default-device)
hostonly_default_device="no" ;;
--persistent-policy)
persistent_policy_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--fstab) use_fstab_l="yes" ;;
-h|--help) long_usage; exit 1 ;;
-i|--include) include_src+=("$2"); PARMS_TO_STORE+=" '$2'";
shift;;
--bzip2) compress_l="bzip2";;
--lzma) compress_l="lzma";;
--xz) compress_l="xz";;
--lzo) compress_l="lzo";;
--lz4) compress_l="lz4";;
--zstd) compress_l="zstd";;
--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";;
--reproducible) reproducible_l="yes";;
--no-reproducible) reproducible_l="no";;
--uefi) uefi="yes";;
--uefi-stub)
uefi_stub_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--kernel-image)
kernel_image_l="$2"; PARMS_TO_STORE+=" '$2'"; shift;;
--no-machineid)
machine_id_l="no";;
--) 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
if [ "${1%%=*}" == "++include" ]; then
include_src+=("$2")
include_target+=("$3")
PARMS_TO_STORE+=" --include '$2' '$3'"
shift 2
fi
shift
done
[[ $sysroot_l ]] && dracutsysrootdir="$sysroot_l"
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 $dracutsysrootdir/lib/modules
for i in *; do
[[ -f $i/modules.dep ]] || [[ -f $i/modules.dep.bin ]] || continue
"$dracut_cmd" --kver="$i" "${dracut_args[@]}"
((ret+=$?))
done
exit $ret
fi
if ! [[ $kernel ]]; then
kernel=$(uname -r)
fi
export LC_ALL=C
export LANG=C
unset LC_MESSAGES
unset LC_CTYPE
unset LD_LIBRARY_PATH
unset LD_PRELOAD
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
}
[[ $dracutbasedir ]] || dracutbasedir=$dracutsysrootdir/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="$dracutsysrootdir/etc/dracut.conf"
fi
fi
if [[ ! -d $confdir ]]; then
if [[ $allowlocal ]]; then
confdir="$dracutbasedir/dracut.conf.d"
else
confdir="$dracutsysrootdir/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
DRACUT_PATH=${DRACUT_PATH:-/sbin /bin /usr/sbin /usr/bin}
for i in $DRACUT_PATH; do
rl=$i
if [ -L "$dracutsysrootdir$i" ]; then
rl=$(readlink -f $dracutsysrootdir$i)
fi
if [[ "$NPATH" != *:$rl* ]] ; then
NPATH+=":$rl"
fi
done
export PATH="${NPATH#:}"
unset NPATH
# these options add to the stuff in the config file
(( ${#add_dracutmodules_l[@]} )) && add_dracutmodules+=" ${add_dracutmodules_l[@]} "
(( ${#force_add_dracutmodules_l[@]} )) && force_add_dracutmodules+=" ${force_add_dracutmodules_l[@]} "
(( ${#fscks_l[@]} )) && fscks+=" ${fscks_l[@]} "
(( ${#add_fstab_l[@]} )) && add_fstab+=" ${add_fstab_l[@]} "
(( ${#fstab_lines_l[@]} )) && fstab_lines+=( "${fstab_lines_l[@]}" )
(( ${#install_items_l[@]} )) && install_items+=" ${install_items_l[@]} "
(( ${#install_optional_items_l[@]} )) && install_optional_items+=" ${install_optional_items_l[@]} "
# these options override the stuff in the config file
(( ${#dracutmodules_l[@]} )) && dracutmodules="${dracutmodules_l[@]}"
(( ${#omit_dracutmodules_l[@]} )) && omit_dracutmodules="${omit_dracutmodules_l[@]}"
(( ${#filesystems_l[@]} )) && filesystems="${filesystems_l[@]}"
(( ${#fw_dir_l[@]} )) && fw_dir="${fw_dir_l[@]}"
(( ${#libdirs_l[@]} ))&& libdirs="${libdirs_l[@]}"
[[ $stdloglvl_l ]] && stdloglvl=$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
[[ $hostonly_cmdline_l ]] && hostonly_cmdline=$hostonly_cmdline_l
[[ $hostonly_mode_l ]] && hostonly_mode=$hostonly_mode_l
[[ "$hostonly" == "yes" ]] && ! [[ $hostonly_cmdline ]] && hostonly_cmdline="yes"
[[ $i18n_install_all_l ]] && i18n_install_all=$i18n_install_all_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
[[ $dracutbasedir ]] || dracutbasedir=$dracutsysrootdir/usr/lib/dracut
[[ $fw_dir ]] || fw_dir="$dracutsysrootdir/lib/firmware/updates:$dracutsysrootdir/lib/firmware:$dracutsysrootdir/lib/firmware/$kernel"
[[ $tmpdir_l ]] && tmpdir="$tmpdir_l"
[[ $tmpdir ]] || tmpdir=$dracutsysrootdir/var/tmp
[[ $INITRD_COMPRESS ]] && compress=$INITRD_COMPRESS
[[ $compress_l ]] && compress=$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=yes
[[ $early_microcode_image_dir ]] || early_microcode_image_dir=('/boot')
[[ $early_microcode_image_name ]] || \
early_microcode_image_name=('intel-uc.img' 'intel-ucode.img' 'amd-uc.img' 'amd-ucode.img' 'early_ucode.cpio' 'microcode.cpio')
[[ $logfile_l ]] && logfile="$logfile_l"
[[ $reproducible_l ]] && reproducible="$reproducible_l"
[[ $loginstall_l ]] && loginstall="$loginstall_l"
[[ $uefi_stub_l ]] && uefi_stub="$uefi_stub_l"
[[ $kernel_image_l ]] && kernel_image="$kernel_image_l"
[[ $machine_id_l ]] && machine_id="$machine_id_l"
if ! [[ $outfile ]]; then
if [[ $machine_id != "no" ]]; then
[[ -f $dracutsysrootdir/etc/machine-id ]] && read MACHINE_ID < $dracutsysrootdir/etc/machine-id
fi
if [[ $uefi == "yes" ]]; then
if [[ -n "$uefi_secureboot_key" && -z "$uefi_secureboot_cert" ]] || [[ -z $uefi_secureboot_key && -n $uefi_secureboot_cert ]]; then
dfatal "Need 'uefi_secureboot_key' and 'uefi_secureboot_cert' both to be set."
exit 1
fi
if [[ -n "$uefi_secureboot_key" && -n "$uefi_secureboot_cert" ]] && !command -v sbsign &>/dev/null; then
dfatal "Need 'sbsign' to create a signed UEFI executable"
exit 1
fi
BUILD_ID=$(cat $dracutsysrootdir/etc/os-release $dracutsysrootdir/usr/lib/os-release \
| while read -r line || [[ $line ]]; do \
[[ $line =~ BUILD_ID\=* ]] && eval "$line" && echo "$BUILD_ID" && break; \
done)
if [[ -z $dracutsysrootdir ]]; then
if [[ -d /efi ]] && mountpoint -q /efi; then
efidir=/efi/EFI
else
efidir=/boot/EFI
if [[ -d $dracutsysrootdir/boot/efi/EFI ]]; then
efidir=/boot/efi/EFI
fi
fi
else
efidir=/boot/EFI
if [[ -d $dracutsysrootdir/boot/efi/EFI ]]; then
efidir=/boot/efi/EFI
fi
fi
mkdir -p "$dracutsysrootdir$efidir/Linux"
outfile="$dracutsysrootdir$efidir/Linux/linux-$kernel${MACHINE_ID:+-${MACHINE_ID}}${BUILD_ID:+-${BUILD_ID}}.efi"
else
if [[ -e "$dracutsysrootdir/boot/vmlinuz-$kernel" ]]; then
outfile="/boot/initramfs-$kernel.img"
elif [[ $MACHINE_ID ]] && ( [[ -d $dracutsysrootdir/boot/${MACHINE_ID} ]] || [[ -L $dracutsysrootdir/boot/${MACHINE_ID} ]] ); then
outfile="$dracutsysrootdir/boot/${MACHINE_ID}/$kernel/initrd"
else
outfile="$dracutsysrootdir/boot/initramfs-$kernel.img"
fi
fi
fi
# eliminate IFS hackery when messing with fw_dir
export DRACUT_FIRMWARE_PATH=${fw_dir// /:}
fw_dir=${fw_dir//:/ }
# check for logfile and try to create one if it doesn't exist
if [[ -n "$logfile" ]];then
if [[ ! -f "$logfile" ]];then
touch "$logfile"
if [ ! $? -eq 0 ] ;then
printf "%s\n" "dracut: touch $logfile failed." >&2
fi
fi
fi
# handle compression options.
DRACUT_COMPRESS_BZIP2=${DRACUT_COMPRESS_BZIP2:-bzip2}
DRACUT_COMPRESS_LBZIP2=${DRACUT_COMPRESS_LBZIP2:-lbzip2}
DRACUT_COMPRESS_LZMA=${DRACUT_COMPRESS_LZMA:-lzma}
DRACUT_COMPRESS_XZ=${DRACUT_COMPRESS_XZ:-xz}
DRACUT_COMPRESS_GZIP=${DRACUT_COMPRESS_GZIP:-gzip}
DRACUT_COMPRESS_PIGZ=${DRACUT_COMPRESS_PIGZ:-pigz}
DRACUT_COMPRESS_LZOP=${DRACUT_COMPRESS_LZOP:-lzop}
DRACUT_COMPRESS_ZSTD=${DRACUT_COMPRESS_ZSTD:-zstd}
DRACUT_COMPRESS_LZ4=${DRACUT_COMPRESS_LZ4:-lz4}
DRACUT_COMPRESS_CAT=${DRACUT_COMPRESS_CAT:-cat}
if [[ $_no_compress_l = "$DRACUT_COMPRESS_CAT" ]]; then
compress="$DRACUT_COMPRESS_CAT"
fi
if ! [[ $compress ]]; then
# check all known compressors, if none specified
for i in $DRACUT_COMPRESS_PIGZ $DRACUT_COMPRESS_GZIP $DRACUT_COMPRESS_LZ4 $DRACUT_COMPRESS_LZOP $ $DRACUT_COMPRESS_ZSTD $DRACUT_COMPRESS_LZMA $DRACUT_COMPRESS_XZ $DRACUT_COMPRESS_LBZIP2 $OMPRESS_BZIP2 $DRACUT_COMPRESS_CAT; do
command -v "$i" &>/dev/null || continue
compress="$i"
break
done
if [[ $compress = cat ]]; then
printf "%s\n" "dracut: no compression tool available. Initramfs image is going to be big." >&2
fi
fi
# choose the right arguments for the compressor
case $compress in
bzip2|lbzip2)
if [[ "$compress" = lbzip2 ]] || command -v $DRACUT_COMPRESS_LBZIP2 &>/dev/null; then
compress="$DRACUT_COMPRESS_LBZIP2 -9"
else
compress="$DRACUT_COMPRESS_BZIP2 -9"
fi
;;
lzma)
compress="$DRACUT_COMPRESS_LZMA -9 -T0"
;;
xz)
compress="$DRACUT_COMPRESS_XZ --check=crc32 --lzma2=dict=1MiB -T0"
;;
gzip|pigz)
if [[ "$compress" = pigz ]] || command -v $DRACUT_COMPRESS_PIGZ &>/dev/null; then
compress="$DRACUT_COMPRESS_PIGZ -9 -n -T -R"
elif command -v gzip &>/dev/null && $DRACUT_COMPRESS_GZIP --help 2>&1 | grep -q rsyncable; then
compress="$DRACUT_COMPRESS_GZIP -n -9 --rsyncable"
else
compress="$DRACUT_COMPRESS_GZIP -n -9"
fi
;;
lzo|lzop)
compress="$DRACUT_COMPRESS_LZOP -9"
;;
lz4)
compress="$DRACUT_COMPRESS_LZ4 -l -9"
;;
zstd)
compress="$DRACUT_COMPRESS_ZSTD -15 -q -T0"
;;
esac
[[ $hostonly = yes ]] && hostonly="-h"
[[ $hostonly != "-h" ]] && unset hostonly
case $hostonly_mode in
'')
[[ $hostonly ]] && hostonly_mode="sloppy" ;;
sloppy|strict)
if [[ ! $hostonly ]]; then
unset hostonly_mode
fi
;;
*)
printf "%s\n" "dracut: Invalid hostonly mode '$hostonly_mode'." >&2
exit 1
esac
[[ $reproducible == yes ]] && DRACUT_REPRODUCIBLE=1
case "${drivers_dir}" in
''|*lib/modules/${kernel}|*lib/modules/${kernel}/) ;;
*)
[[ "$DRACUT_KMODDIR_OVERRIDE" ]] || {
printf "%s\n" "dracut: -k/--kmoddir path must contain \"lib/modules\" as a parent of your kernel module directory,"
printf "%s\n" "dracut: or modules may not be placed in the correct location inside the initramfs."
printf "%s\n" "dracut: was given: ${drivers_dir}"
printf "%s\n" "dracut: expected: $(dirname ${drivers_dir})/lib/modules/${kernel}"
printf "%s\n" "dracut: Please move your modules into the correct directory structure and pass the new location,"
printf "%s\n" "dracut: or set DRACUT_KMODDIR_OVERRIDE=1 to ignore this check."
exit 1
}
;;
esac
readonly TMPDIR="$(realpath -e "$tmpdir")"
[ -d "$TMPDIR" ] || {
printf "%s\n" "dracut: Invalid tmpdir '$tmpdir'." >&2
exit 1
}
readonly DRACUT_TMPDIR="$(mktemp -p "$TMPDIR/" -d -t dracut.XXXXXX)"
[ -d "$DRACUT_TMPDIR" ] || {
printf "%s\n" "dracut: mktemp -p '$TMPDIR/' -d -t dracut.XXXXXX failed." >&2
exit 1
}
# clean up after ourselves no matter how we die.
trap '
ret=$?;
[[ $keep ]] && echo "Not removing $DRACUT_TMPDIR." >&2 || { [[ $DRACUT_TMPDIR ]] && rm -rf -- "$DRACUT_TMPDIR"; };
exit $ret;
' EXIT
# clean up after ourselves no matter how we die.
trap 'exit 1;' SIGINT
readonly initdir="${DRACUT_TMPDIR}/initramfs"
mkdir "$initdir"
if [[ $early_microcode = yes ]] || ( [[ $acpi_override = yes ]] && [[ -d $acpi_table_dir ]] ); then
readonly early_cpio_dir="${DRACUT_TMPDIR}/earlycpio"
mkdir "$early_cpio_dir"
fi
[[ -n "$dracutsysrootdir" ]] || export DRACUT_RESOLVE_LAZY="1"
if [[ $print_cmdline ]]; then
stdloglvl=0
sysloglvl=0
fileloglvl=0
kmsgloglvl=0
fi
if [[ -f $dracutbasedir/dracut-version.sh ]]; then
. $dracutbasedir/dracut-version.sh
fi
if [[ -f $dracutbasedir/dracut-init.sh ]]; then
. $dracutbasedir/dracut-init.sh
else
printf "%s\n" "dracut: Cannot find $dracutbasedir/dracut-init.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 $dracut_cmd" >&2
exit 1
fi
if [[ $no_kernel != yes ]] && ! [[ -d $srcmods ]]; then
printf "%s\n" "dracut: Cannot find module directory $srcmods" >&2
printf "%s\n" "dracut: and --no-kernel was not specified" >&2
exit 1
fi
if ! [[ $print_cmdline ]]; then
inst $DRACUT_TESTBIN
if ! $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${dracutsysrootdir:+-r "$dracutsysrootdir"} -R "$DRACUT_TESTBIN" &>/dev/null; then
unset DRACUT_RESOLVE_LAZY
export DRACUT_RESOLVE_DEPS=1
fi
rm -fr -- ${initdir}/*
fi