|
|
|
|
@ -6,16 +6,23 @@ IMAGE_SIZE=$((2252*1024**2)) # 2.2G (the current size we ship)
|
|
|
|
|
rootfs_dev_mapper=
|
|
|
|
|
loop_device=
|
|
|
|
|
loop_raw=
|
|
|
|
|
backing_img=
|
|
|
|
|
|
|
|
|
|
apt-get -qqy install dosfstools gdisk
|
|
|
|
|
|
|
|
|
|
clean_loops() {
|
|
|
|
|
[ -z "${rootfs_dev_mapper}" ] || {
|
|
|
|
|
udevadm settle
|
|
|
|
|
find /dev/mapper -iname "${loop_device///dev\//}*" | \
|
|
|
|
|
xargs -n1 -I DEVICE dmsetup remove DEVICE ||
|
|
|
|
|
kpartx -d "${rootfs_dev_mapper}"
|
|
|
|
|
losetup -d "${loop_device}" || echo "Failed to detach disk"
|
|
|
|
|
unset loop_raw
|
|
|
|
|
}
|
|
|
|
|
if [ -z "${rootfs_dev_mapper}" ]; then
|
|
|
|
|
return 0
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
if [ -n "${backing_img}" ]; then
|
|
|
|
|
kpartx -v -d "${backing_img}"
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
unset backing_img
|
|
|
|
|
unset loop_device
|
|
|
|
|
unset loop_raw
|
|
|
|
|
unset rootfs_dev_mapper
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
create_empty_disk_image() {
|
|
|
|
|
@ -32,6 +39,7 @@ make_ext4_partition() {
|
|
|
|
|
mount_image() {
|
|
|
|
|
apt-get install -qqy kpartx
|
|
|
|
|
trap clean_loops EXIT
|
|
|
|
|
backing_img="$1"
|
|
|
|
|
loop_raw="$(kpartx -s -v -a "$1" )"
|
|
|
|
|
loop_device="$(echo -e "${loop_raw}" | head -n1 | awk '{print($(NF-1))}')"
|
|
|
|
|
rootfs_dev_mapper="/dev/mapper${loop_device///dev/}p1"
|
|
|
|
|
@ -46,22 +54,80 @@ mount_partition() {
|
|
|
|
|
|
|
|
|
|
mount "$partition" "$mountpoint"
|
|
|
|
|
mount --bind /dev "$mountpoint/dev"
|
|
|
|
|
mount devpts-live -t devpts "$mountpoint/dev/pts"
|
|
|
|
|
mount devpts-live -t proc "$mountpoint/dev/pts"
|
|
|
|
|
mount proc-live -t proc "$mountpoint/proc"
|
|
|
|
|
mount sysfs-live -t sysfs "$mountpoint/sys"
|
|
|
|
|
mount -t tmpfs none "$mountpoint/tmp"
|
|
|
|
|
mv "$mountpoint/etc/resolv.conf" resolv.conf.tmp
|
|
|
|
|
cp /etc/resolv.conf "$mountpoint/etc/resolv.conf"
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
mount_disk_image() {
|
|
|
|
|
local disk_image=${1}
|
|
|
|
|
local mountpoint=${2}
|
|
|
|
|
mount_image ${disk_image}
|
|
|
|
|
mount_partition "${rootfs_dev_mapper}" $mountpoint
|
|
|
|
|
|
|
|
|
|
local uefi_dev="/dev/mapper${loop_device///dev/}p15"
|
|
|
|
|
if [ -b ${uefi_dev} -a -e $mountpoint/boot/efi ]; then
|
|
|
|
|
mount "${uefi_dev}" $mountpoint/boot/efi
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
# This is needed to allow for certain operations
|
|
|
|
|
# such as updating grub and installing software
|
|
|
|
|
cat > $mountpoint/usr/sbin/policy-rc.d << EOF
|
|
|
|
|
#!/bin/sh
|
|
|
|
|
# ${CLOUD_IMG_STR}
|
|
|
|
|
echo "All runlevel operations denied by policy" >&2
|
|
|
|
|
exit 101
|
|
|
|
|
EOF
|
|
|
|
|
chmod 0755 $mountpoint/usr/sbin/policy-rc.d
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
umount_settle() {
|
|
|
|
|
# Unmount device, and let it settle
|
|
|
|
|
umount $1
|
|
|
|
|
udevadm settle
|
|
|
|
|
sleep 3
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
umount_partition() {
|
|
|
|
|
local mountpoint=${1}
|
|
|
|
|
mv resolv.conf.tmp "$mountpoint/etc/resolv.conf"
|
|
|
|
|
for submnt in proc sys dev/pts dev tmp;
|
|
|
|
|
do
|
|
|
|
|
umount_settle $mountpoint/$submnt
|
|
|
|
|
done
|
|
|
|
|
umount_settle $mountpoint
|
|
|
|
|
|
|
|
|
|
if [ -n "${rootfs_dev_mapper}" -a -b "${rootfs_dev_mapper}" ]; then
|
|
|
|
|
# buildd's don't have /etc/mtab symlinked
|
|
|
|
|
# /etc/mtab is needed in order zerofree space for ext4 filesystems
|
|
|
|
|
[ -e /etc/mtab ] || ln -s /proc/mounts /etc/mtab
|
|
|
|
|
|
|
|
|
|
# both of these are likely overkill, but it does result in slightly
|
|
|
|
|
# smaller ext4 filesystem
|
|
|
|
|
apt-get -qqy install zerofree
|
|
|
|
|
e2fsck -y -E discard ${rootfs_dev_mapper}
|
|
|
|
|
zerofree ${rootfs_dev_mapper}
|
|
|
|
|
fi
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
umount_disk_image() {
|
|
|
|
|
mountpoint="$1"
|
|
|
|
|
|
|
|
|
|
mv resolv.conf.tmp "$mountpoint/etc/resolv.conf"
|
|
|
|
|
umount "$mountpoint/proc"
|
|
|
|
|
umount "$mountpoint/sys"
|
|
|
|
|
umount "$mountpoint/dev/pts"
|
|
|
|
|
umount "$mountpoint/dev"
|
|
|
|
|
umount "$mountpoint"
|
|
|
|
|
local uefi_dev="/dev/mapper${loop_device///dev/}p15"
|
|
|
|
|
if [ -e "$mountpoint/boot/efi" -a -b "$uefi_dev" ]; then
|
|
|
|
|
umount --detach-loop "$mountpoint/boot/efi"
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
if [ -e $mountpoint/usr/sbin/policy-rc.d ]; then
|
|
|
|
|
rm $mountpoint/usr/sbin/policy-rc.d
|
|
|
|
|
fi
|
|
|
|
|
umount_partition $mountpoint
|
|
|
|
|
clean_loops
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
modify_vmdk_header() {
|
|
|
|
|
@ -129,3 +195,33 @@ create_vmdk() {
|
|
|
|
|
qemu-img info ${destination}
|
|
|
|
|
rm -rf ${scratch_d}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
create_derivative() {
|
|
|
|
|
# arg1 is the disk type
|
|
|
|
|
# arg2 is the new name
|
|
|
|
|
unset derivative_img
|
|
|
|
|
case ${1} in
|
|
|
|
|
uefi) disk_image="binary/boot/disk-uefi.ext4";
|
|
|
|
|
dname="${disk_image//-uefi/-$2-uefi}";;
|
|
|
|
|
*) disk_image="binary/boot/disk.ext4";
|
|
|
|
|
dname="${disk_image//.ext4/-$2.ext4}";;
|
|
|
|
|
esac
|
|
|
|
|
|
|
|
|
|
if [ ! -e ${disk_image} ]; then
|
|
|
|
|
echo "Did not find ${disk_image}!"; exit 1;
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
cp ${disk_image} ${dname}
|
|
|
|
|
export derivative_img=${dname}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
convert_to_qcow2() {
|
|
|
|
|
apt-get install -qqy qemu-utils
|
|
|
|
|
|
|
|
|
|
src="$1"
|
|
|
|
|
destination="$2"
|
|
|
|
|
qemu-img convert -c -O qcow2 -o compat=0.10 "$src" "$destination"
|
|
|
|
|
qemu-img info "$destination"
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Michael Vogt
9 years ago