I have a Debian/Sarge installation (completely up to date as of today) on which I can reproduce the hanging problem. I have only one XFS partition on which to boot and run Debian/Sarge.
Please note that I don't understand a lot of this, but I made some
changes to /sbin/grub-install and it seems to no longer hang. However,
my system was fairly quiet when I did the test.
Also it would be better to somehow test if /boot/grub is on an XFS
filesystem, and if so, run xfs_magic. But I don't know how to do this.
My test was to 'rm -r /boot/grub' and then run 'grub-install /dev/hda'.
Here is my version of grub-install which seems to work.
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#! /bin/sh
# Install GRUB on your drive.
# Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
#
# This file 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# Initialize some variables.
prefix=/
exec_prefix=${prefix}
sbindir=${exec_prefix}/sbin
libdir=${exec_prefix}/lib
PACKAGE=grub
VERSION=0.95
host_cpu=i386
host_os=linux-gnu
host_vendor=pc
pkglibdir=${libdir}/${PACKAGE}/${host_cpu}-${host_vendor}
grub_shell=${sbindir}/grub
log_file=/tmp/grub-install.log.$$
img_file=/tmp/grub-install.img.$$
rootdir=
grub_prefix=/boot/grub
install_device=
no_floppy=
force_lba=
recheck=no
debug=no
# look for secure tempfile creation wrappers on this platform
if test -x /bin/tempfile; then
mklog="/bin/tempfile --prefix=grub"
mkimg="/bin/tempfile --prefix=grub"
elif test -x /bin/mktemp; then
mklog="/bin/mktemp /tmp/grub-install.log.XXXXXX"
mkimg="/bin/mktemp /tmp/grub-install.img.XXXXXX"
else
mklog=""
mkimg=""
fi
# Usage: usage
# Print the usage.
usage () {
cat <<EOF
Usage: grub-install [OPTION] install_device
Install GRUB on your drive.
-h, --help print this message and exit
-v, --version print the version information and exit
--root-directory=DIR install GRUB images under the directory DIR
instead of the root directory
--grub-shell=FILE use FILE as the grub shell
--no-floppy do not probe any floppy drive
--force-lba force GRUB to use LBA mode even for a buggy
BIOS
--recheck probe a device map even if it already exists
INSTALL_DEVICE can be a GRUB device name or a system device filename.
grub-install copies GRUB images into the DIR/boot directory specfied by
--root-directory, and uses the grub shell to install grub into the boot
sector.
Report bugs to <bug-grub@gnu.org>.
EOF
}
xfs_magic () {
sync
if which xfs_freeze > /dev/null ; then
xfs_freeze -f ${grubdir}
sleep 1
xfs_freeze -u ${grubdir}
fi
}
# Usage: getraid_mdadm mddevice
# Routine to find a physical device from an md device
# If found, the first grub BIOS device (from device.map) is returned
# If no BIOS drives match the RAID devices, the first device returned
# from mdadm -D is returned
getraid_mdadm() {
device=$1
mdadm=$(mdadm -D "$device") || {
echo "$PROG: mdadm -D $device failed" >&2
exit 1
}
eval "$(
echo "$mdadm" | awk '
$1 == "Number" && $2 == "Major" { start = 1; next }
$1 == "UUID" { print "uuid=" $3; start = 0; next }
!start { next }
$2 == 0 && $3 == 0 { next }
{ devices = devices "\n" $NF }
END { print "devices='\''" devices "'\''" }
'
)"
# Convert RAID devices list into a list of disks
tmp_disks=`echo "$devices" | sed -e 's%\([sh]d[a-z]\)[0-9]*$%\1%' \
-e 's%\(d[0-9]*\)p[0-9]*$%\1%' \
-e 's%\(fd[0-9]*\)$%\1%' \
-e 's%/part[0-9]*$%/disc%' \
-e 's%\(c[0-7]d[0-9]*\).*$%\1%' \
-e '/^$/d' |
sed -n '1h;2,$H;${g;s/\n/|/g;p}'`
# Find first BIOS disk that's a member of the RAID array
# Default to first RAID member if no tmp_disks are BIOS devices
set -- `egrep $tmp_disks $device_map | \
sort | \
sed -n 1p `
device=${2:-${tmp_disks%%|*}}
# Return first partition on BIOS disk that's part of the RAID
echo "$devices" | \
sed -n "\:${device}:p" | \
sed -n 1p
}
# Usage: convert os_device
# Convert an OS device to the corresponding GRUB drive.
# This part is OS-specific.
convert () {
# First, check if the device file exists.
if test -e "$1"; then
:
else
echo "$1: Not found or not a block device." 1>&2
exit 1
fi
# Break the device name into the disk part and the partition part.
case "$host_os" in
linux*)
# Find an actual physical device if we're passed a RAID device
case $1 in
/dev/md*) set -- `getraid_mdadm $1`
esac
tmp_disk=`echo "$1" | sed -e 's%\([sh]d[a-z]\)[0-9]*$%\1%' \
-e 's%\(d[0-9]*\)p[0-9]*$%\1%' \
-e 's%\(fd[0-9]*\)$%\1%' \
-e 's%/part[0-9]*$%/disc%' \
-e 's%\(c[0-7]d[0-9]*\).*$%\1%'`
tmp_part=`echo "$1" | sed -e 's%.*/[sh]d[a-z]\([0-9]*\)$%\1%' \
-e 's%.*d[0-9]*p*%%' \
-e 's%.*/fd[0-9]*$%%' \
-e 's%.*/floppy/[0-9]*$%%' \
-e 's%.*/\(disc\|part\([0-9]*\)\)$%\2%' \
-e 's%.*c[0-7]d[0-9]*p*%%'`
;;
gnu*)
tmp_disk=`echo "$1" | sed 's%\([sh]d[0-9]*\).*%\1%'`
tmp_part=`echo "$1" | sed "s%$tmp_disk%%"` ;;
freebsd*)
tmp_disk=`echo "$1" | sed 's%r\{0,1\}\([saw]d[0-9]*\).*$%r\1%' \
| sed 's%r\{0,1\}\(da[0-9]*\).*$%r\1%'`
tmp_part=`echo "$1" \
| sed "s%.*/r\{0,1\}[saw]d[0-9]\(s[0-9]*[a-h]\)%\1%" \
| sed "s%.*/r\{0,1\}da[0-9]\(s[0-9]*[a-h]\)%\1%"`
;;
netbsd*)
tmp_disk=`echo "$1" | sed 's%r\{0,1\}\([sw]d[0-9]*\).*$%r\1d%' \
| sed 's%r\{0,1\}\(fd[0-9]*\).*$%r\1a%'`
tmp_part=`echo "$1" \
| sed "s%.*/r\{0,1\}[sw]d[0-9]\([abe-p]\)%\1%"`
;;
*)
echo "grub-install does not support your OS yet." 1>&2
exit 1 ;;
esac
# Get the drive name.
tmp_drive=`grep -v '^#' $device_map | grep "$tmp_disk *$" \
| sed 's%.*\(([hf]d[0-9][a-g0-9,]*)\).*%\1%'`
# If not found, print an error message and exit.
if test "x$tmp_drive" = x; then
echo "$1 does not have any corresponding BIOS drive." 1>&2
exit 1
fi
if test "x$tmp_part" != x; then
# If a partition is specified, we need to translate it into the
# GRUB's syntax.
case "$host_os" in
linux*)
echo "$tmp_drive" | sed "s%)$%,`expr $tmp_part - 1`)%" ;;
gnu*)
if echo $tmp_part | grep "^s" >/dev/null; then
tmp_pc_slice=`echo $tmp_part \
| sed "s%s\([0-9]*\)[a-g]*$%\1%"`
tmp_drive=`echo "$tmp_drive" \
| sed "s%)%,\`expr "$tmp_pc_slice" - 1\`)%"`
fi
if echo $tmp_part | grep "[a-g]$" >/dev/null; then
tmp_bsd_partition=`echo "$tmp_part" \
| sed "s%[^a-g]*\([a-g]\)$%\1%"`
tmp_drive=`echo "$tmp_drive" \
| sed "s%)%,$tmp_bsd_partition)%"`
fi
echo "$tmp_drive" ;;
freebsd*)
if echo $tmp_part | grep "^s" >/dev/null; then
tmp_pc_slice=`echo $tmp_part \
| sed "s%s\([0-9]*\)[a-h]*$%\1%"`
tmp_drive=`echo "$tmp_drive" \
| sed "s%)%,\`expr "$tmp_pc_slice" - 1\`)%"`
fi
if echo $tmp_part | grep "[a-h]$" >/dev/null; then
tmp_bsd_partition=`echo "$tmp_part" \
| sed "s%s\{0,1\}[0-9]*\([a-h]\)$%\1%"`
tmp_drive=`echo "$tmp_drive" \
| sed "s%)%,$tmp_bsd_partition)%"`
fi
echo "$tmp_drive" ;;
netbsd*)
if echo $tmp_part | grep "^[abe-p]$" >/dev/null; then
tmp_bsd_partition=`echo "$tmp_part" \
| sed "s%\([a-p]\)$%\1%"`
tmp_drive=`echo "$tmp_drive" \
| sed "s%)%,$tmp_bsd_partition)%"`
fi
echo "$tmp_drive" ;;
esac
else
# If no partition is specified, just print the drive name.
echo "$tmp_drive"
fi
}
# Usage: resolve_symlink file
# Find the real file/device that file points at
resolve_symlink () {
tmp_fname=$1
# Resolve symlinks
while test -L $tmp_fname; do
tmp_new_fname=`ls -al $tmp_fname | sed -n 's%.*-> \(.*\)%\1%p'`
if test -z "$tmp_new_fname"; then
echo "Unrecognized ls output" 2>&1
exit 1
fi
# Convert relative symlinks
case $tmp_new_fname in
/*) tmp_fname="$tmp_new_fname"
;;
*) tmp_fname="`echo $tmp_fname | sed
's%/[^/]*$%%'`/$tmp_new_fname"
;;
esac
done
echo "$tmp_fname"
}
# Usage: find_device file
# Find block device on which the file resides.
find_device () {
# For now, this uses the program `df' to get the device name, but is
# this really portable?
tmp_fname=`df $1/ | sed -n 's%.*\(/dev/[^ ]*\).*%\1%p'`
if test -z "$tmp_fname"; then
echo "Could not find device for $1" 2>&1
exit 1
fi
tmp_fname=`resolve_symlink $tmp_fname`
echo "$tmp_fname"
}
# Check the arguments.
for option in "$@"; do
case "$option" in
-h | --help)
usage
exit 0 ;;
-v | --version)
echo "grub-install (GNU GRUB ${VERSION})"
exit 0 ;;
--root-directory=*)
rootdir=`echo "$option" | sed 's/--root-directory=//'` ;;
--grub-shell=*)
grub_shell=`echo "$option" | sed 's/--grub-shell=//'` ;;
--no-floppy)
no_floppy="--no-floppy" ;;
--force-lba)
force_lba="--force-lba" ;;
--recheck)
recheck=yes ;;
# This is an undocumented feature...
--debug)
debug=yes ;;
-*)
echo "Unrecognized option \`$option'" 1>&2
usage
exit 1
;;
*)
if test "x$install_device" != x; then
echo "More than one install_devices?" 1>&2
usage
exit 1
fi
install_device="${option}" ;;
esac
done
if test "x$install_device" = x; then
echo "install_device not specified." 1>&2
usage
exit 1
fi
# If the debugging feature is enabled, print commands.
if test $debug = yes; then
set -x
fi
# Initialize these directories here, since ROOTDIR was initialized.
case "$host_os" in
netbsd*)
# Because /boot is used for the boot block in NetBSD, use /grub
# instead of /boot/grub.
grub_prefix=/grub
bootdir=${rootdir}
;;
*)
# Use /boot/grub by default.
bootdir=${rootdir}/boot
;;
esac
grubdir=${bootdir}/grub
device_map=${grubdir}/device.map
# Check if GRUB is installed.
# This is necessary, because the user can specify "grub --read-only".
set $grub_shell dummy
if test -f "$1"; then
:
else
echo "$1: Not found." 1>&2
exit 1
fi
if test -f "$pkglibdir/stage1"; then
:
else
echo "${pkglibdir}/stage1: Not found." 1>&2
exit 1
fi
if test -f "$pkglibdir/stage2"; then
:
else
echo "${pkglibdir}/stage2: Not found." 1>&2
exit 1
fi
# Don't check for *stage1_5, because it is not fatal even if any
# Stage 1.5 does not exist.
# Create the GRUB directory if it is not present.
test -d "$bootdir" || mkdir "$bootdir" || exit 1
test -d "$grubdir" || mkdir "$grubdir" || exit 1
# If --recheck is specified, remove the device map, if present.
if test $recheck = yes; then
rm -f $device_map
fi
# Create the device map file if it is not present.
if test -f "$device_map"; then
:
else
# Create a safe temporary file.
test -n "$mklog" && log_file=`$mklog`
xfs_magic
$grub_shell --batch $no_floppy --device-map=$device_map <<EOF >$log_file
quit
EOF
xfs_magic
if grep "Error [0-9]*: " $log_file >/dev/null; then
cat $log_file 1>&2
exit 1
fi
rm -f $log_file
fi
# Make sure that there is no duplicated entry.
tmp=`sed -n '/^([fh]d[0-9]*)/s/\(^(.*)\).*/\1/p' $device_map \
| sort | uniq -d | sed -n 1p`
if test -n "$tmp"; then
echo "The drive $tmp is defined multiple times in the device map
$device_map" 1>&2
exit 1
fi
# Check for INSTALL_DEVICE.
case "$install_device" in
/dev/*)
install_device=`resolve_symlink "$install_device"`
install_drive=`convert "$install_device"`
# I don't know why, but some shells wouldn't die if exit is
# called in a function.
if test "x$install_drive" = x; then
exit 1
fi ;;
\([hf]d[0-9]*\))
install_drive="$install_device" ;;
[hf]d[0-9]*)
# The GRUB format with no parenthesis.
install_drive="($install_device)" ;;
*)
echo "Format of install_device not recognized." 1>&2
usage
exit 1 ;;
esac
# Get the root drive.
root_device=`find_device ${rootdir}`
bootdir_device=`find_device ${bootdir}`
# Check if the boot directory is in the same device as the root directory.
if test "x$root_device" != "x$bootdir_device"; then
# Perhaps the user has a separate boot partition.
root_device=$bootdir_device
grub_prefix="/grub"
fi
# Convert the root device to a GRUB drive.
root_drive=`convert "$root_device"`
if test "x$root_drive" = x; then
exit 1
fi
# Check if the root directory exists in the same device as the grub
# directory.
grubdir_device=`find_device ${grubdir}`
if test "x$grubdir_device" != "x$root_device"; then
# For now, cannot deal with this situation.
cat <<EOF 1>&2
You must set the root directory by the option --root-directory, because
$grubdir does not exist in the root device $root_device.
EOF
exit 1
fi
# Copy the GRUB images to the GRUB directory.
for file in ${grubdir}/stage1 ${grubdir}/stage2 ${grubdir}/*stage1_5; do
rm -f $file || exit 1
done
for file in \
${pkglibdir}/stage1 ${pkglibdir}/stage2 ${pkglibdir}/*stage1_5; do
cp -f $file ${grubdir} || exit 1
done
# Make sure that GRUB reads the same images as the host OS.
test -n "$mkimg" && img_file=`$mkimg`
test -n "$mklog" && log_file=`$mklog`
for file in ${grubdir}/stage1 ${grubdir}/stage2 ${grubdir}/*stage1_5; do
count=5
tmp=`echo $file | sed "s|^${grubdir}|${grub_prefix}|"`
while test $count -gt 0; do
xfs_magic
$grub_shell --batch $no_floppy --device-map=$device_map <<EOF >$log_file
dump ${root_drive}${tmp} ${img_file}
quit
EOF
xfs_magic
if grep "Error [0-9]*: " $log_file >/dev/null; then
:
elif cmp $file $img_file >/dev/null; then
break
fi
count=`expr $count - 1`
done
if test $count -eq 0; then
echo "The file $file not read correctly." 1>&2
exit 1
fi
done
rm -f $img_file
rm -f $log_file
# Create a safe temporary file.
test -n "$mklog" && log_file=`$mklog`
# Sync to prevent GRUB from not finding stage files (notably, on XFS)
sync
xfs_magic
# Now perform the installation.
$grub_shell --batch $no_floppy --device-map=$device_map <<EOF >$log_file
root $root_drive
setup $force_lba --stage2=$grubdir/stage2 --prefix=$grub_prefix $install_drive
quit
EOF
xfs_magic
if grep "Error [0-9]*: " $log_file >/dev/null || test $debug = yes; then
cat $log_file 1>&2
exit 1
fi
rm -f $log_file
# Prompt the user to check if the device map is correct.
echo "Installation finished. No error reported."
echo "This is the contents of the device map $device_map."
echo "Check if this is correct or not. If any of the lines is incorrect,"
echo "fix it and re-run the script \`grub-install'."
echo
cat $device_map
# Bye.
exit 0
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