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|
#!/bin/bash
# defaults
dir=/home/wwoods/test/qemu/dracut
dracutdir=/home/wwoods/src/dracut
anacondadir=/home/wwoods/src/anaconda
ram=768
disk=$dir/disk.img
disk2=$dir/disk2.img
#cdrom=$dir/iso/Fedora-17-x86_64-DVD.iso
cdrom=$dir/iso/fedora-17-x86_64-netinst.iso
#graphics="spice"
graphics="vnc"
usecd="true"
ARGS=$(getopt --options "dcstm:" \
--longoptions "fromcd,nocd,virtconsole,serialconsole,text,ram:" \
--name testboot.sh \
-- "$@") || exit 1
eval set -- "$ARGS"
while :; do case "$1" in
-d|--fromcd) fromcd="true"; shift;;
--nocd) usecd=""; shift;;
-c|--virtconsole) console="--console pty"; shift;;
-s|--serialconsole) console="--serial pty"; shift;;
-t|--text) graphics="none"; shift;;
-m|--ram) ram="$2"; shift 2;;
--) shift; break;;
*) echo "getopt parse error"; exit 1 ;;
esac; done
if [ ! -f $cdrom ]; then
echo "Can't find cdrom!"
exit 1
fi
[ $(id -u) = 0 ] || { echo "be root."; exit 1; }
chcon -t virt_content_t $cdrom
get_modules() {
local cat=cat
case `file $1` in
*:\ gzip*) cat=zcat ;;
*:\ xz*|*:\ XZ*) cat=xzcat ;;
esac
echo -n "finding kernel version..."
moddir=$($cat $1 | cpio --quiet -t */modules.dep)
moddir=${moddir%/modules.dep}
kv=${moddir##*/}
echo "$kv"
if [ ! -d /lib/modules/$kv ]; then
echo -n "getting modules..."
tmpdir=$dir/.modules.tmp
mkdir -p $tmpdir
( cd $tmpdir; $cat $1 | cpio --quiet -iumd $moddir/* )
mv $tmpdir/$moddir /lib/modules/$kv
rm -rf $tmpdir
echo "done"
fi
if [ ! -f $dir/.buildstamp ]; then
echo -n "getting buildstamp..."
$cat $1 | cpio --quiet -ium .buildstamp
echo "done"
fi
}
apply_updates() {
(
cd $dir/updates
find . -depth -type d | while read d; do
[ ! -d "../initramfs/$d" ] && mkdir -p "../initramfs/$d"
done
find . -depth \! -type d | while read f; do
cp -a "$f" "../initramfs/$f"
echo " ${f#.}"
done
)
}
initrd_cpio() {
( cd $dir/initramfs; find . | cpio -co ) 2>/dev/null
}
if [ "$fromcd" != "true" ]; then
kernel_args="$@"
# check RAM
[ "$ram" -lt 768 ] && kernel_args="$* inst.memcheck=0"
# do we need to pull out the kernel/modules?
vmlinuz="$dir/vmlinuz"
[ -e $vmlinuz.kv ] && kv=$(< $vmlinuz.kv)
if [ $cdrom -nt $vmlinuz -o -z "$kv" -o ! -d /lib/modules/$kv ]; then
echo "getting kernel and modules"
umount .mnt &>/dev/null
mkdir -p $dir/.mnt
if mount -o ro,loop $cdrom $dir/.mnt; then
cp -f $dir/.mnt/isolinux/vmlinuz $vmlinuz
cp -f $dir/.mnt/isolinux/initrd.img initrd.img.orig
get_modules $dir/.mnt/isolinux/initrd.img # sets $kv
umount $dir/.mnt
[ -z "$kv" ] && echo "couldn't figure out kernel ver??" && exit 1
echo "$kv" > $vmlinuz.kv
fi
rmdir $dir/.mnt
rm -rf $dir/initramfs
fi
# do we need to rebuild initrd?
initrd="$dir/initrd.img"
if [ ! -d $dir/initramfs ] || [ $cdrom -nt $dir/initramfs ]; then
echo "rebuilding initramfs"
# TODO: check for $dracutdir/dracut.sh and git pull otherwise
if ! [ -f $dracutdir/modules.d/80anaconda/parse-kickstart ]; then
if [ ! -d $anacondadir/dracut ]; then
# TODO: git pull
echo "ERROR: can't find anaconda dracut module :/"
exit 1
else
ln -s $anacondadir/dracut $dracutdir/modules.d/80anaconda
fi
fi
rm -rf $dir/initramfs $initrd
(
cd $dracutdir
./dracut.sh --local --no-compress --nomdadmconf --nolvmconf \
--prefix /run/initramfs --add anaconda \
--omit plymouth \
$dir/.initrd.cpio $kv
) || exit 1
rm -rf $dir/.initramfs.tmp; mkdir $dir/.initramfs.tmp
( cd $dir/.initramfs.tmp; cpio -iumd ) < $dir/.initrd.cpio
rm -f $dir/.initrd.cpio
mv $dir/.initramfs.tmp $dir/initramfs
cp $dir/.buildstamp $dir/initramfs/.buildstamp
fi
if [ ! -e $initrd ] || \
find initramfs updates -newer $initrd | grep -q .; then
echo "applying updates to initramfs"
apply_updates
echo "making initrd.img"
initrd_cpio | xz -1 --check=crc32 > $dir/.initrd.tmp || exit 1
mv -f $dir/.initrd.tmp $initrd
fi
bootarg="kernel=$vmlinuz,initrd=$initrd,kernel_args=$kernel_args"
fi
echo "Creating 'testboot' guest..."
virsh destroy testboot &>/dev/null
virsh undefine testboot &>/dev/null
virt-install --name testboot --ram $ram --graphics $graphics \
--os-type linux --os-variant fedora16 $console \
--disk $disk,size=10 --disk $disk2,size=10 \
--network network=default,model=virtio,mac=52:54:00:03:31:38 \
${usecd:+--disk $cdrom,device=cdrom} \
${bootarg:+--boot "$bootarg"}
virsh destroy testboot &>/dev/null
# historical interest: this is how it'd work in qemu
do_qemu() {
echo "starting qemu"
echo "C-a x to exit, C-a c for console monitor"
qemu-kvm -m $ram -kernel $kernel -initrd $initrd \
-cdrom $cdrom -nographic -append $kernel_args
}
|
