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livecd-rootfs/live-build/ubuntu/hooks/099-ubuntu-image-customizat...

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#!/bin/bash -ex
. /root/config/chroot
# Specific ubuntu-image chroot configuration goes here.
if [ "$IMAGEFORMAT" == "none" ]; then
if [ "$SUBPROJECT" == "desktop-preinstalled" ]; then
# Create files/dirs Ubiquity requires
mkdir -p /var/log/installer
touch /var/log/installer/debug
touch /var/log/syslog
chown syslog:adm /var/log/syslog
# Create the oem user account
if [ -e "/usr/sbin/oem-config-prepare" ] then
/usr/sbin/useradd -d /home/oem -G adm,sudo -m -N -u 29999 oem
/usr/sbin/oem-config-prepare --quiet
touch "/var/lib/oem-config/run"
fi
# Make the writable partition grow
echo "LABEL=writable / ext4 defaults,x-systemd.growfs 0 0" >>/etc/fstab
# Create a 1GB swapfile
dd if=/dev/zero of=/swapfile bs=1M count=1024
chmod 0600 /swapfile
mkswap /swapfile
echo "/swapfile none swap sw 0 0" >>/etc/fstab
if [ $(dpkg --print-architecture) == "amd64" ]; then
# We need to get a grub.cfg generated for our image
# This is copy-pasted from 999-cpc-fixes.chroot
# TODO: Make this better. One idea would be to have this exported
# in functions or something, and then reused by both the cpc-fixes
# and here. Another possibility is to actually trim down the
# pseudo_grub_probe to only work for a regular preinstalled
# desktop.
# But short term it's safer to use a known code-base.
psuedo_grub_probe() {
cat <<"PSUEDO_GRUB_PROBE"
#!/bin/sh
Usage() {
cat <<EOF
Usage: euca-psuedo-grub-probe
this is a wrapper around grub-probe to provide the answers for an ec2 guest
EOF
}
bad_Usage() { Usage 1>&2; fail "$@"; }
short_opts=""
long_opts="device-map:,target:,device"
getopt_out=$(getopt --name "${0##*/}" \
--options "${short_opts}" --long "${long_opts}" -- "$@") &&
eval set -- "${getopt_out}" ||
bad_Usage
device_map=""
target=""
device=0
arg=""
while [ $# -ne 0 ]; do
cur=${1}; next=${2};
case "$cur" in
--device-map) device_map=${next}; shift;;
--device) device=1;;
--target) target=${next}; shift;;
--) shift; break;;
esac
shift;
done
arg=${1}
case "${target}:${device}:${arg}" in
device:*:/*) echo "/dev/sda1"; exit 0;;
fs:*:*) echo "ext2"; exit 0;;
partmap:*:*)
# older versions of grub (lucid) want 'part_msdos' written
# rather than 'msdos'
legacy_pre=""
grubver=$(dpkg-query --show --showformat '${Version}\n' grub-pc 2>/dev/null) &&
dpkg --compare-versions "${grubver}" lt 1.98+20100804-5ubuntu3 &&
legacy_pre="part_"
echo "${legacy_pre}msdos";
exit 0;;
abstraction:*:*) echo ""; exit 0;;
drive:*:/dev/sda) echo "(hd0)";;
drive:*:/dev/sda*) echo "(hd0,1)";;
fs_uuid:*:*) exit 1;;
esac
PSUEDO_GRUB_PROBE
}
gprobe="/usr/sbin/grub-probe"
moved=0
if [ -f "${gprobe}" ]; then
mv "${gprobe}" "${gprobe}.dist"
moved=1
fi
psuedo_grub_probe > "${gprobe}"
chmod 755 "${gprobe}"
# Generate grub.cfg
/usr/sbin/update-grub2
grub2cfg="/boot/grub/grub.cfg"
[ ! -f "${grub2cfg}" ] ||
sed -i -e "s,root=/dev/[hs]da1,root=LABEL=writable," "${grub2cfg}"
[ ${moved} -eq 0 ] || mv "${gprobe}.dist" "${gprobe}"
fi
fi
fi