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https://git.proxmox.com/git/grub2
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eea3209a7f
Bug-Ubuntu: https://bugs.launchpad.net/bugs/938724 Forwarded: no Last-Update: 2013-12-20 Patch-Name: mkconfig_nonexistent_loopback.patch
396 lines
9.5 KiB
Plaintext
396 lines
9.5 KiB
Plaintext
# Helper library for grub-mkconfig
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# Copyright (C) 2007,2008,2009,2010 Free Software Foundation, Inc.
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#
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# GRUB is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# GRUB is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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prefix="@prefix@"
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exec_prefix="@exec_prefix@"
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datarootdir="@datarootdir@"
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datadir="@datadir@"
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bindir="@bindir@"
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sbindir="@sbindir@"
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if [ "x$pkgdatadir" = x ]; then
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pkgdatadir="${datadir}/@PACKAGE@"
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fi
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if test "x$grub_probe" = x; then
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grub_probe="${sbindir}/@grub_probe@"
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fi
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if test "x$grub_file" = x; then
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grub_file="${bindir}/@grub_file@"
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fi
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if test "x$grub_mkrelpath" = x; then
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grub_mkrelpath="${bindir}/@grub_mkrelpath@"
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fi
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if which gettext >/dev/null 2>/dev/null; then
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:
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else
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gettext () {
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printf "%s" "$@"
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}
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fi
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grub_warn ()
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{
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echo "$(gettext "Warning:")" "$@" >&2
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}
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make_system_path_relative_to_its_root ()
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{
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"${grub_mkrelpath}" "$1"
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}
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is_path_readable_by_grub ()
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{
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path="$1"
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# abort if path doesn't exist
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if test -e "$path" ; then : ;else
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return 1
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fi
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# abort if file is in a filesystem we can't read
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if "${grub_probe}" -t fs "$path" > /dev/null 2>&1 ; then : ; else
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return 1
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fi
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# ... or if we can't figure out the abstraction module, for example if
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# memberlist fails on an LVM volume group.
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if abstractions="`"${grub_probe}" -t abstraction "$path"`" 2> /dev/null ; then
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:
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else
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return 1
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fi
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if [ x$GRUB_ENABLE_CRYPTODISK = xy ]; then
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return 0
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fi
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for abstraction in $abstractions; do
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if [ "x$abstraction" = xcryptodisk ]; then
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return 1
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fi
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done
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return 0
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}
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convert_system_path_to_grub_path ()
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{
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path="$1"
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grub_warn "convert_system_path_to_grub_path() is deprecated. Use prepare_grub_to_access_device() instead."
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# abort if GRUB can't access the path
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if is_path_readable_by_grub "${path}" ; then : ; else
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return 1
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fi
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if drive="`"${grub_probe}" -t drive "$path"`" ; then : ; else
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return 1
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fi
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if relative_path="`make_system_path_relative_to_its_root "$path"`" ; then : ; else
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return 1
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fi
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echo "${drive}${relative_path}"
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}
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save_default_entry ()
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{
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if [ "x${GRUB_SAVEDEFAULT}" = "xtrue" ] ; then
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cat << EOF
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savedefault
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EOF
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fi
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}
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prepare_grub_to_access_device ()
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{
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old_ifs="$IFS"
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IFS='
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'
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partmap="`"${grub_probe}" --device $@ --target=partmap`"
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for module in ${partmap} ; do
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case "${module}" in
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netbsd | openbsd)
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echo "insmod part_bsd";;
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*)
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echo "insmod part_${module}";;
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esac
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done
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loop_file=
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case $1 in
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/dev/loop/*|/dev/loop[0-9])
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grub_loop_device="${1#/dev/}"
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loop_file=`losetup "$1" | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
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case $loop_file in
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/dev/*) ;;
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*)
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loop_device="$1"
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shift
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set -- `"${grub_probe}" --target=device "${loop_file}"` "$@" || return 0
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;;
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esac
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;;
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esac
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# Abstraction modules aren't auto-loaded.
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abstraction="`"${grub_probe}" --device $@ --target=abstraction`"
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for module in ${abstraction} ; do
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echo "insmod ${module}"
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done
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fs="`"${grub_probe}" --device $@ --target=fs`"
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for module in ${fs} ; do
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echo "insmod ${module}"
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done
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if [ x$GRUB_ENABLE_CRYPTODISK = xy ]; then
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for uuid in `"${grub_probe}" --device $@ --target=cryptodisk_uuid`; do
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echo "cryptomount -u $uuid"
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done
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fi
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# If there's a filesystem UUID that GRUB is capable of identifying, use it;
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# otherwise set root as per value in device.map.
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fs_hint="`"${grub_probe}" --device $@ --target=compatibility_hint`"
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if [ "x$fs_hint" != x ]; then
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echo "set root='$fs_hint'"
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fi
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if fs_uuid="`"${grub_probe}" --device $@ --target=fs_uuid 2> /dev/null`" ; then
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hints="`"${grub_probe}" --device $@ --target=hints_string 2> /dev/null`" || hints=
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echo "if [ x\$feature_platform_search_hint = xy ]; then"
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echo " search --no-floppy --fs-uuid --set=root ${hints} ${fs_uuid}"
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echo "else"
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echo " search --no-floppy --fs-uuid --set=root ${fs_uuid}"
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echo "fi"
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fi
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IFS="$old_ifs"
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if [ "x${loop_file}" != x ]; then
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loop_mountpoint="$(awk '"'${loop_file}'" ~ "^"$2 && $2 != "/" { print $2 }' /proc/mounts | tail -n1)"
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if [ "x${loop_mountpoint}" != x ]; then
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echo "loopback ${grub_loop_device} ${loop_file#$loop_mountpoint}"
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echo "set root=(${grub_loop_device})"
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fi
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fi
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}
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grub_get_device_id ()
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{
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old_ifs="$IFS"
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IFS='
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'
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device="$1"
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if fs_uuid="`"${grub_probe}" --device ${device} --target=fs_uuid 2> /dev/null`" ; then
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echo "$fs_uuid";
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else
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echo $device |sed 's, ,_,g'
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fi
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IFS="$old_ifs"
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}
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grub_file_is_not_garbage ()
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{
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if test -f "$1" ; then
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case "$1" in
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*.dpkg-*) return 1 ;; # debian dpkg
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*.rpmsave|*.rpmnew) return 1 ;;
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README*|*/README*) return 1 ;; # documentation
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esac
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else
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return 1
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fi
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return 0
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}
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version_sort ()
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{
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case $version_sort_sort_has_v in
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yes)
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LC_ALL=C sort -V;;
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no)
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LC_ALL=C sort -n;;
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*)
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if sort -V </dev/null > /dev/null 2>&1; then
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version_sort_sort_has_v=yes
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LC_ALL=C sort -V
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else
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version_sort_sort_has_v=no
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LC_ALL=C sort -n
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fi;;
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esac
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}
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version_test_numeric ()
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{
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version_test_numeric_a="$1"
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version_test_numeric_cmp="$2"
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version_test_numeric_b="$3"
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if [ "$version_test_numeric_a" = "$version_test_numeric_b" ] ; then
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case "$version_test_numeric_cmp" in
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ge|eq|le) return 0 ;;
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gt|lt) return 1 ;;
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esac
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fi
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if [ "$version_test_numeric_cmp" = "lt" ] ; then
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version_test_numeric_c="$version_test_numeric_a"
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version_test_numeric_a="$version_test_numeric_b"
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version_test_numeric_b="$version_test_numeric_c"
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fi
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if (echo "$version_test_numeric_a" ; echo "$version_test_numeric_b") | version_sort | head -n 1 | grep -qx "$version_test_numeric_b" ; then
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return 0
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else
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return 1
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fi
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}
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version_test_gt ()
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{
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version_test_gt_sedexp="s/[^-]*-//;s/[._-]\(pre\|rc\|test\|git\|old\|trunk\)/~\1/g"
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version_test_gt_a="`echo "$1" | sed -e "$version_test_gt_sedexp"`"
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version_test_gt_b="`echo "$2" | sed -e "$version_test_gt_sedexp"`"
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version_test_gt_cmp=gt
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if [ "x$version_test_gt_b" = "x" ] ; then
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return 0
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fi
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case "$version_test_gt_a:$version_test_gt_b" in
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*.old:*.old) ;;
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*.old:*) version_test_gt_a="`echo "$version_test_gt_a" | sed -e 's/\.old$//'`" ; version_test_gt_cmp=gt ;;
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*:*.old) version_test_gt_b="`echo "$version_test_gt_b" | sed -e 's/\.old$//'`" ; version_test_gt_cmp=ge ;;
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esac
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dpkg --compare-versions "$version_test_gt_a" "$version_test_gt_cmp" "$version_test_gt_b"
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return "$?"
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}
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version_find_latest ()
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{
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version_find_latest_a=""
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for i in "$@" ; do
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if version_test_gt "$i" "$version_find_latest_a" ; then
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version_find_latest_a="$i"
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fi
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done
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echo "$version_find_latest_a"
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}
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# One layer of quotation is eaten by "" and the second by sed; so this turns
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# ' into \'.
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grub_quote () {
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sed "s/'/'\\\\''/g"
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}
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gettext_quoted () {
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gettext "$@" | grub_quote
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}
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# Run the first argument through gettext, and then pass that and all
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# remaining arguments to printf. This is a useful abbreviation and tends to
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# be easier to type.
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gettext_printf () {
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gettext_printf_format="$1"
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shift
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printf "$(gettext "$gettext_printf_format")" "$@"
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}
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uses_abstraction () {
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device="$1"
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old_ifs="$IFS"
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IFS='
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'
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abstraction="`"${grub_probe}" --device ${device} --target=abstraction`"
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for module in ${abstraction}; do
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if test "x${module}" = "x$2"; then
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IFS="$old_ifs"
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return 0
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fi
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done
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IFS="$old_ifs"
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return 1
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}
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print_option_help () {
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if test x$print_option_help_wc = x; then
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if wc -L </dev/null > /dev/null 2>&1; then
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print_option_help_wc=-L
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elif wc -m </dev/null > /dev/null 2>&1; then
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print_option_help_wc=-m
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else
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print_option_help_wc=-b
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fi
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fi
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if test x$grub_have_fmt = x; then
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if fmt -w 40 </dev/null > /dev/null 2>&1; then
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grub_have_fmt=y;
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else
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grub_have_fmt=n;
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fi
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fi
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print_option_help_lead=" $1"
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print_option_help_lspace="$(echo "$print_option_help_lead" | wc $print_option_help_wc)"
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print_option_help_fill="$((26 - print_option_help_lspace))"
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printf "%s" "$print_option_help_lead"
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if test $print_option_help_fill -le 0; then
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print_option_help_nl=y
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echo
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else
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print_option_help_i=0;
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while test $print_option_help_i -lt $print_option_help_fill; do
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printf " "
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print_option_help_i=$((print_option_help_i+1))
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done
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print_option_help_nl=n
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fi
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if test x$grub_have_fmt = xy; then
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print_option_help_split="$(echo "$2" | fmt -w 50)"
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else
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print_option_help_split="$2"
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fi
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if test x$print_option_help_nl = xy; then
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echo "$print_option_help_split" | awk \
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'{ print " " $0; }'
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else
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echo "$print_option_help_split" | awk 'BEGIN { n = 0 }
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{ if (n == 1) print " " $0; else print $0; n = 1 ; }'
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fi
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}
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grub_fmt () {
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if test x$grub_have_fmt = x; then
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if fmt -w 40 < /dev/null > /dev/null; then
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grub_have_fmt=y;
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else
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grub_have_fmt=n;
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fi
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fi
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if test x$grub_have_fmt = xy; then
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fmt
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else
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cat
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fi
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}
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grub_tab=" "
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grub_add_tab () {
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sed -e "s/^/$grub_tab/"
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}
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