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#!/usr/bin/sh . /usr/share/os-prober/common.sh set -e # add support for btrfs with no separate /boot # that is, rootsv = bootsv partition="$1" bootpart="$2" mpoint="$3" type="$4" rootsv="$5" bootsv="$6" found_item=0 entry_result () { if [ "x$type" = "xbtrfs" -a "$partition" = "$bootpart" ]; then # trim off the leading subvol kernelfile=$(echo "$kernel" \| cut -d '/' -f 2- \| cut -d '/' -f 2-) if [ "x$rootsv" != "x$bootsv" ]; then kernelfile="/boot/$kernelfile" fi else kernelfile=$kernel fi if [ "$ignore_item" = 0 ] && \ [ -n "$kernel" ] && \ [ -e "$mpoint/$kernelfile" ]; then result "$rootpart:$bootpart:$title:$kernel:$initrd:$parameters" found_item=1 fi kernel="" parameters="" initrd="" title="" ignore_item=0 } parse_grub_menu () { mpoint="$1" rootpart="$2" bootpart="$3" kernel="" parameters="" initrd="" title="" ignore_item=0 while read line; do debug "parsing: $line" set -f set -- $line set +f case "$1" in menuentry) entry_result shift 1 # The double-quoted string is the title. # Make sure to look at the text of the line # before 'set' mangled it. title="$(echo "$line" \| sed -n 's/[^"]"$.$"./\1/p' \| sed 's/://g')" if [ -z "$title" ]; then # ... or single-quoted? Be careful # to handle constructions like # 'foo'\''bar' (which expands to # foo'bar, as in shell), and to # handle multiple single-quoted # strings on the same line. title="$(echo "$line" \| sed -n "s/[^']'$\([^']\\|'\\\\''$\)'./\1/p" \| sed "s/'\\\\''/'/; s/://g")" fi if [ -z "$title" ]; then ignore_item=1 elif echo "$title" \| grep -q '(on /dev/[^)])$'; then log "Skipping entry '$title':" log "appears to be an automatic reference taken from another menu.lst" ignore_item=1 fi ;; linux) # Hack alert: sed off any (hdn,n) but # assume the kernel is on the same # partition. kernel="$(echo "$2" \| sed 's/(.)//')" shift 2 parameters="$@" # Systems with a separate /boot will not have # the path to the kernel in grub.cfg. if [ "$partition" != "$bootpart" ]; then kernel="/boot$kernel" fi ;; initrd) initrd="$(echo "$2" \| sed 's/(.*)//')" # Initrd same. if [ "$partition" != "$bootpart" ]; then initrd="/boot$initrd" fi ;; "}") entry_result ;; esac done entry_result } if [ -e "$mpoint/boot/grub/grub.cfg" ] && \ ([ ! -e "$mpoint/boot/grub/menu.lst" ] \|\| \ [ "$mpoint/boot/grub/grub.cfg" -nt "$mpoint/boot/grub/menu.lst" ]); then debug "parsing grub.cfg" parse_grub_menu "$mpoint" "$partition" "$bootpart" < "$mpoint/boot/grub/grub.cfg" elif [ -e "$mpoint/boot/grub2/grub.cfg" ]; then debug "parsing grub.cfg" parse_grub_menu "$mpoint" "$partition" "$bootpart" < "$mpoint/boot/grub2/grub.cfg" fi if [ "$found_item" = 0 ]; then exit 1 else exit 0 fi

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