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Re: [PATCH] Use os-prober to detect other OSes during update-grub
From: |
Fabian Greffrath |
Subject: |
Re: [PATCH] Use os-prober to detect other OSes during update-grub |
Date: |
Mon, 11 Feb 2008 10:34:40 +0100 |
User-agent: |
Thunderbird 2.0.0.9 (Windows/20071031) |
I should not forget to say that this script *depends* on the patch I sent in for
grub-probe in my previous mail.
#! /bin/sh -e
# update-grub helper script.
# Copyright (C) 2006,2007,2008 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/>.
if [ -x "`which os-prober 2>/dev/null`" ] ; then
OSPROBED="`os-prober | tr ' ' '|' | paste -s -d ' '`"
fi
if [ -n "${OSPROBED}" ] ; then
for OS in ${OSPROBED} ; do
DEVICE="`echo ${OS} | cut -d ':' -f 1`"
LONGNAME="`echo ${OS} | cut -d ':' -f 2 | tr '|' ' '`"
LABEL="`echo ${OS} | cut -d ':' -f 3 | tr '|' ' '`"
BOOT="`echo ${OS} | cut -d ':' -f 4`"
if [ -z "${LONGNAME}" ] ; then
LONGNAME="${LABEL}"
fi
echo "Found ${LONGNAME} on ${DEVICE}" >&2
TESTDEVICE="`grub-probe --target=device $0`"
if [ -n "`grub-probe --target=drive --device ${TESTDEVICE} 2>/dev/null`" ]
; then
case "${BOOT}" in
chain)
CHAINROOT="`grub-probe --target=drive --device ${DEVICE}`"
cat << EOF
menuentry "${LONGNAME} (on ${DEVICE})" {
set root=${CHAINROOT}
chainloader +1
}
EOF
;;
linux)
if [ -x "`which linux-boot-prober 2>/dev/null`" ] ; then
LINUXPROBED="`linux-boot-prober ${DEVICE} | tr ' ' '|' | paste -s
-d ' '`"
fi
if [ -n "${LINUXPROBED}" ] ; then
for LINUX in ${LINUXPROBED} ; do
LROOT="`echo ${LINUX} | cut -d ':' -f 1`"
LBOOT="`echo ${LINUX} | cut -d ':' -f 2`"
LLABEL="`echo ${LINUX} | cut -d ':' -f 3 | tr '|' ' '`"
LKERNEL="`echo ${LINUX} | cut -d ':' -f 4`"
LINITRD="`echo ${LINUX} | cut -d ':' -f 5`"
LPARAMS="`echo ${LINUX} | cut -d ':' -f 6- | tr '|' ' '`"
LINUXROOT="`grub-probe --target=drive --device ${LBOOT}`"
if [ -z "${LLABEL}" ] ; then
LLABEL="${LONGNAME}"
fi
cat << EOF
menuentry "${LLABEL} (on ${DEVICE})" {
set root=${LINUXROOT}
linux ${LKERNEL} ${LPARAMS}
EOF
if [ -n "${LINITRD}" ] ; then
cat << EOF
initrd ${LINITRD}
EOF
fi
cat << EOF
}
EOF
done
fi
;;
hurd)
# not yet...
;;
*)
;;
esac
fi
done
fi