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82 lines
2.2 KiB
82 lines
2.2 KiB
#!/bin/bash |
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# |
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# Generator script for a dracut initramfs |
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# Tries to retain some degree of compatibility with the command line |
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# of the various mkinitrd implementations out there |
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# |
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# Copyright 2008, Red Hat, Inc. Jeremy Katz <katzj@redhat.com> |
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# GPLv2 header here |
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for i in "$@"; do |
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case $i in |
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-l|--local) allowlocal="yes" ;; |
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esac |
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done |
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if [[ $allowlocal && -f dracut.conf ]]; then |
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. dracut.conf |
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else |
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[ -f /etc/dracut.conf ] && . /etc/dracut.conf |
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fi |
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while (($# > 0)); do |
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case $1 in |
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-f|--force) force=yes;; |
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-m|--modules) dracutmodules="$2"; shift;; |
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-h|--help) echo "Usage: $0 [-f] <initramfs> <kernel-version>" |
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exit 1 ;; |
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-v|--verbose) set -x;; |
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-l|--local) allowlocal="yes" ;; |
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--allow-missing) : ;; |
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*) break ;; |
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esac |
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shift |
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done |
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[[ $dracutmodules ]] || dracutmodules="all" |
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[[ $2 ]] && kernel=$2 || kernel=$(uname -r) |
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[[ $1 ]] && outfile=$(readlink -f $1) || outfile="/boot/initrd-$kernel.img" |
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if [[ -f $outfile && ! $force ]]; then |
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echo "Will not override existing initramfs ($outfile) without --force" |
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exit 1 |
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fi |
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[[ $allowlocal && -f dracut-functions ]] && dsrc="." || dsrc=/usr/lib/dracut |
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. $dsrc/dracut-functions |
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hookdirs="pre-udev pre-mount pre-pivot mount" |
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readonly initdir=$(mktemp -d -t initramfs.XXXXXX) |
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trap 'rm -rf "$initdir"' 0 # clean up after ourselves no matter how we die. |
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export initdir hookdirs dsrc dracutmodules modules |
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# Create some directory structure first |
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for d in bin sbin usr/bin usr/sbin usr/lib etc proc sys sysroot dev/pts; do |
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mkdir -p "$initdir/$d"; |
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done |
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# source all our modules |
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for moddir in "$dsrc/modules.d"/*; do |
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[[ -d $moddir || -L $moddir ]] || continue |
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mod=${moddir##*/}; mod=${mod#[0-9][0-9]}; |
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if [[ $dracutmodules = all ]] || strstr "$dracutmodules" "$mod"; then |
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[[ -x $moddir/install ]] && . "$moddir/install" |
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fi |
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done |
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unset moddir |
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## final stuff that has to happen |
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# generate module dependencies for the initrd |
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/sbin/depmod -a -b "$initdir" $kernel || { |
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echo "\"/sbin/depmod -a $kernel\" failed." |
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exit 1 |
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} |
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# make sure that library links are correct and up to date |
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ldconfig -n -r "$initdir" /lib* /usr/lib* |
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( cd "$initdir"; find . |cpio -H newc -o |gzip -9 > "$outfile"; )
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