ansible-install-server/roles/fai/files/profiles/scripts/CENTOS/40-install-grub

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#! /bin/bash
# (c) Michael Goetze, 2011, mgoetze@mgoetze.net
# (c) Thomas Lange 2014
error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
if [ -r $LOGDIR/disk_var.sh ] ; then
. $LOGDIR/disk_var.sh
else
echo "disk_var.sh not found!"
exit 1
fi
# CentOS 7 does not have a device.map file, so generate one
if [ -d $target/boot/grub2 -a ! -f $target/boot/grub2/device.map ]; then
echo "# Generated by FAI" >> $target/boot/grub2/device.map
centosdisks=$(awk '/[sv]d.$/ {print $4}' /proc/partitions | sort)
dcount=0
for d in $centosdisks; do
echo "(hd$dcount) /dev/$d" >> $target/boot/grub2/device.map
dcount=$((dcount + 1))
done
fi
bootdev=`device2grub $BOOT_DEVICE`
bootpart=`device2grub $BOOT_PARTITION`
version=`$ROOTCMD rpm -qv kernel | cut -d- -f2-`
if grep '[[:space:]]/boot[[:space:]]' $LOGDIR/fstab; then
bootdir=''
else
bootdir='/boot'
fi
mount -o bind /dev $target/dev
if [ -f $target/usr/sbin/grub2-install ]; then
# CentOS 7
$ROOTCMD grub2-install --no-floppy "$BOOT_DEVICE"
$ROOTCMD grub2-mkconfig --output=/boot/grub2/grub.cfg
else
$ROOTCMD grub-install --just-copy
$ROOTCMD grub --device-map=/dev/null --no-floppy --batch <<-EOF
device $bootdev $BOOT_DEVICE
root $bootpart
setup $bootdev
quit
EOF
ln -s ./menu.lst $target/boot/grub/grub.conf
if [ -f $target/boot/grub/splash.xpm.gz ]; then
pretty="splashimage=$bootpart$bootdir/grub/splash.xpm.gz"
else
pretty="color cyan/blue white/blue"
fi
if [ -f $target/sbin/dracut -o -f $target/usr/sbin/dracut ]; then
# CentOS 6
iname=initramfs
else
# CentOS 5
iname=initrd
fi
title=`head -1 $target/etc/redhat-release`
cat > $target/boot/grub/grub.conf <<-EOF
timeout 5
default 0
$pretty
hiddenmenu
title $title
root $bootpart
kernel $bootdir/vmlinuz-$version root=$ROOT_PARTITION ro
initrd $bootdir/$iname-$version.img
EOF
fi
umount $target/dev
echo ""
echo "Grub installed on $BOOT_DEVICE = $bootdev"
echo "Grub boot partition is $BOOT_PARTITION = $bootpart"
echo "Root partition is $ROOT_PARTITION"
echo "Boot kernel: $version"
exit $error