150 lines
3.7 KiB
Bash
150 lines
3.7 KiB
Bash
#! /bin/sh -e
|
|
|
|
# update-grub helper script.
|
|
# Copyright (C) 2006,2007,2008,2009 Free Software Foundation, Inc.
|
|
#
|
|
# GRUB 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 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
prefix=@prefix@
|
|
exec_prefix=@exec_prefix@
|
|
libdir=@libdir@
|
|
. ${libdir}/grub/grub-mkconfig_lib
|
|
|
|
if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
|
|
OS=GNU/Linux
|
|
else
|
|
OS="${GRUB_DISTRIBUTOR} GNU/Linux"
|
|
fi
|
|
|
|
# loop-AES arranges things so that /dev/loop/X can be our root device, but
|
|
# the initrds that Linux uses don't like that.
|
|
case ${GRUB_DEVICE} in
|
|
/dev/loop/*|/dev/loop[0-9])
|
|
GRUB_DEVICE=`losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
|
|
;;
|
|
esac
|
|
|
|
if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
|
|
|| ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" ; then
|
|
LINUX_ROOT_DEVICE=${GRUB_DEVICE}
|
|
else
|
|
LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
|
|
fi
|
|
|
|
test_numeric ()
|
|
{
|
|
local a=$1
|
|
local cmp=$2
|
|
local b=$3
|
|
if [ "$a" = "$b" ] ; then
|
|
case $cmp in
|
|
ge|eq|le) return 0 ;;
|
|
gt|lt) return 1 ;;
|
|
esac
|
|
fi
|
|
if [ "$cmp" = "lt" ] ; then
|
|
c=$a
|
|
a=$b
|
|
b=$c
|
|
fi
|
|
if (echo $a ; echo $b) | sort -n | head -n 1 | grep -qx $b ; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
test_gt ()
|
|
{
|
|
local a=`echo $1 | sed -e "s/vmlinu[zx]-//g"`
|
|
local b=`echo $2 | sed -e "s/vmlinu[zx]-//g"`
|
|
local cmp=gt
|
|
if [ "x$b" = "x" ] ; then
|
|
return 0
|
|
fi
|
|
case $a:$b in
|
|
*.old:*.old) ;;
|
|
*.old:*) a=`echo -n $a | sed -e s/\.old$//g` ; cmp=gt ;;
|
|
*:*.old) b=`echo -n $b | sed -e s/\.old$//g` ; cmp=ge ;;
|
|
esac
|
|
test_numeric $a $cmp $b
|
|
return $?
|
|
}
|
|
|
|
find_latest ()
|
|
{
|
|
local a=""
|
|
for i in $@ ; do
|
|
if test_gt "$i" "$a" ; then
|
|
a="$i"
|
|
fi
|
|
done
|
|
echo "$a"
|
|
}
|
|
|
|
linux_entry ()
|
|
{
|
|
cat << EOF
|
|
menuentry "$1" {
|
|
EOF
|
|
prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | sed -e "s/^/\t/"
|
|
cat << EOF
|
|
linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro $2
|
|
EOF
|
|
if test -n "${initrd}" ; then
|
|
cat << EOF
|
|
initrd ${rel_dirname}/${initrd}
|
|
EOF
|
|
fi
|
|
cat << EOF
|
|
}
|
|
EOF
|
|
}
|
|
|
|
list=`for i in /boot/vmlinu[xz]-* /vmlinu[xz]-* ; do
|
|
if grub_file_is_not_garbage "$i" ; then echo -n "$i " ; fi
|
|
done`
|
|
|
|
while [ "x$list" != "x" ] ; do
|
|
linux=`find_latest $list`
|
|
echo "Found linux image: $linux" >&2
|
|
basename=`basename $linux`
|
|
dirname=`dirname $linux`
|
|
rel_dirname=`make_system_path_relative_to_its_root $dirname`
|
|
version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
|
|
alt_version=`echo $version | sed -e "s,\.old$,,g"`
|
|
linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
|
|
|
|
initrd=
|
|
for i in "initrd.img-${version}" "initrd-${version}.img" \
|
|
"initrd.img-${alt_version}" "initrd-${alt_version}.img"; do
|
|
if test -e "${dirname}/${i}" ; then
|
|
initrd="$i"
|
|
break
|
|
fi
|
|
done
|
|
if test -n "${initrd}" ; then
|
|
echo "Found initrd image: ${dirname}/${initrd}" >&2
|
|
else
|
|
# "UUID=" magic is parsed by initrds. Since there's no initrd, it can't work here.
|
|
linux_root_device_thisversion=${GRUB_DEVICE}
|
|
fi
|
|
|
|
linux_entry "${OS}, Linux ${version}" \
|
|
"${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
|
|
linux_entry "${OS}, Linux ${version} (recovery mode)" \
|
|
"single ${GRUB_CMDLINE_LINUX}"
|
|
|
|
list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
|
|
done
|