93 lines
2 KiB
Bash
Executable file
93 lines
2 KiB
Bash
Executable file
#!/bin/bash -e
|
|
# build_pxe_boot.sh - Create a PXE boot environment
|
|
#
|
|
# build_pxe_boot.sh destdir
|
|
#
|
|
# Assumes syslinux is installed
|
|
# Only needs to run as root if the destdir permissions require it
|
|
|
|
DEST_DIR=${1:-/tmp}/tftpboot
|
|
PXEDIR=${PXEDIR:-/var/cache/devstack/pxe}
|
|
OPWD=`pwd`
|
|
PROGDIR=`dirname $0`
|
|
|
|
mkdir -p $DEST_DIR/pxelinux.cfg
|
|
cd $DEST_DIR
|
|
for i in memdisk menu.c32 pxelinux.0; do
|
|
cp -pu /usr/lib/syslinux/$i $DEST_DIR
|
|
done
|
|
|
|
CFG=$DEST_DIR/pxelinux.cfg/default
|
|
cat >$CFG <<EOF
|
|
default menu.c32
|
|
prompt 0
|
|
timeout 0
|
|
|
|
MENU TITLE PXE Boot Menu
|
|
|
|
EOF
|
|
|
|
# Setup devstack boot
|
|
mkdir -p $DEST_DIR/ubuntu
|
|
if [ ! -d $PXEDIR ]; then
|
|
mkdir -p $PXEDIR
|
|
fi
|
|
|
|
# Get image into place
|
|
if [ ! -r $PXEDIR/stack-initrd.img ]; then
|
|
cd $OPWD
|
|
$PROGDIR/build_ramdisk.sh $PXEDIR/stack-initrd.img
|
|
fi
|
|
if [ ! -r $PXEDIR/stack-initrd.gz ]; then
|
|
gzip -1 -c $PXEDIR/stack-initrd.img >$PXEDIR/stack-initrd.gz
|
|
fi
|
|
cp -pu $PXEDIR/stack-initrd.gz $DEST_DIR/ubuntu
|
|
|
|
if [ ! -r $PXEDIR/vmlinuz-*-generic ]; then
|
|
MNTDIR=`mktemp -d --tmpdir mntXXXXXXXX`
|
|
mount -t ext4 -o loop $PXEDIR/stack-initrd.img $MNTDIR
|
|
|
|
if [ ! -r $MNTDIR/boot/vmlinuz-*-generic ]; then
|
|
echo "No kernel found"
|
|
umount $MNTDIR
|
|
rmdir $MNTDIR
|
|
exit 1
|
|
else
|
|
cp -pu $MNTDIR/boot/vmlinuz-*-generic $PXEDIR
|
|
fi
|
|
umount $MNTDIR
|
|
rmdir $MNTDIR
|
|
fi
|
|
|
|
# Get generic kernel version
|
|
KNAME=`basename $PXEDIR/vmlinuz-*-generic`
|
|
KVER=${KNAME#vmlinuz-}
|
|
cp -pu $PXEDIR/vmlinuz-$KVER $DEST_DIR/ubuntu
|
|
cat >>$CFG <<EOF
|
|
|
|
LABEL devstack
|
|
MENU LABEL ^devstack
|
|
MENU DEFAULT
|
|
KERNEL ubuntu/vmlinuz-$KVER
|
|
APPEND initrd=ubuntu/stack-initrd.gz ramdisk_size=2109600 root=/dev/ram0
|
|
EOF
|
|
|
|
# Get Ubuntu
|
|
if [ -d $PXEDIR -a -r $PXEDIR/natty-base-initrd.gz ]; then
|
|
cp -pu $PXEDIR/natty-base-initrd.gz $DEST_DIR/ubuntu
|
|
cat >>$CFG <<EOF
|
|
|
|
LABEL ubuntu
|
|
MENU LABEL ^Ubuntu Natty
|
|
KERNEL ubuntu/vmlinuz-$KVER
|
|
APPEND initrd=ubuntu/natty-base-initrd.gz ramdisk_size=419600 root=/dev/ram0
|
|
EOF
|
|
fi
|
|
|
|
# Local disk boot
|
|
cat >>$CFG <<EOF
|
|
|
|
LABEL local
|
|
MENU LABEL ^Local disk
|
|
LOCALBOOT 0
|
|
EOF
|