mirror of
https://git.launchpad.net/livecd-rootfs
synced 2025-07-28 09:11:30 +00:00
11ad200f2e
Imported using git-ubuntu import.
Changelog parent: 5a3ccfef341d527c982edf3af372266b3b1be566
New changelog entries:
[ Balint Reczey ]
* Clean up dangling /boot/initrd.img symlink when needed
* Revert ignoring failure of minimized autopkgtest on ppc64el
* Use kvm kernel only on amd64
* Skip installing server task when building minimial images
[ Steve Langasek ]
* export SNAP_REEXEC=0 to our snappy systemd units in the livefs overlay,
to work around apparmor not working reliably against aufs.
291 lines
8.3 KiB
Bash
Executable File
291 lines
8.3 KiB
Bash
Executable File
#!/bin/bash -x
|
|
rootd="${1:-/}"
|
|
root_fs_label=cloudimg-rootfs
|
|
set -ex
|
|
|
|
. /root/config/chroot
|
|
|
|
CLOUD_IMG_STR="# CLOUD_IMG: This file was created/modified by the Cloud Image build process"
|
|
|
|
LANG=C
|
|
|
|
_xchroot() {
|
|
# Prevent multiple chroots
|
|
if [ "$1" = "/" ]; then
|
|
shift;
|
|
"$@"
|
|
else
|
|
chroot "$@"
|
|
fi
|
|
}
|
|
|
|
#### COMMON architecture independent functions
|
|
arch=$(_xchroot "${rootd}" dpkg --print-architecture)
|
|
|
|
fake_cloud_init() {
|
|
# If the cloud does not provide a meta-data service this should be run
|
|
# This will setup a nocloud datasource.
|
|
|
|
seed_d="${rootd}/var/lib/cloud/seed/nocloud-net"
|
|
mkdir -p "${seed_d}"
|
|
|
|
# fake instance-id
|
|
cat << EOF > "${seed_d}/meta-data"
|
|
instance_id: cloud-image
|
|
EOF
|
|
|
|
# fake user-data to create the default user/password
|
|
cat << EOF > "${seed_d}/user-data"
|
|
#cloud-config
|
|
password: ubuntu
|
|
chpasswd: ubuntu
|
|
ssh_pwauth: True
|
|
EOF
|
|
|
|
# tell cloud-init not to look for meta-data sources
|
|
cat << EOF > ${rootd}/etc/cloud/cloud.cfg.d/99-fake_cloud.cfg
|
|
# configure cloud-init for NoCloud
|
|
datasource_list: [ NoCloud, None ]
|
|
EOF
|
|
}
|
|
|
|
## --------------
|
|
# remove 127.0.1.1 entry (LP: #440757)
|
|
_xchroot "${rootd}" sh -c 'sed -i "/^127.0.1.1/d" /etc/hosts'
|
|
|
|
## --------------
|
|
# remove ssh pregenerated keys (LP: #512377)
|
|
|
|
_xchroot "${rootd}" sh -c 'rm -f /etc/ssh/ssh_host_[rd]sa_key*'
|
|
|
|
## --------------
|
|
if [ "${SUBPROJECT:-}" != minimized ]; then
|
|
_xchroot "${rootd}" locale-gen en_US.utf8
|
|
fi
|
|
|
|
## --------------
|
|
# We continue to pre-generate en_US.UTF-8 locale above, but the default locale
|
|
# should be C.UTF-8 for 17.10 and later. For earlier releases, cloud-init may
|
|
# override this.
|
|
echo LANG="C.UTF-8" > "${rootd}/etc/default/locale"
|
|
|
|
## --------------
|
|
# set cloud-init to be on
|
|
values="NoCloud, ConfigDrive, AltCloud, OVF, MAAS, Ec2, None"
|
|
printf "%s\t%s\t%s\t%s\n" \
|
|
cloud-init cloud-init/datasources multiselect "$values" |
|
|
_xchroot "${rootd}" debconf-set-selections
|
|
_xchroot "${rootd}" dpkg-reconfigure --frontend=noninteractive cloud-init
|
|
|
|
## --------------
|
|
# write some build information to the guest
|
|
# the idea is that given runtime info and this info, the instance
|
|
# can at least determine if there is a newer build available
|
|
# these variables are passed in in environment from cloudimg-build-launcher
|
|
if [ -n "${build_name}" -o -n "${serial}" ]; then
|
|
d="${rootd}/etc/cloud"
|
|
[ -d "$d" ] || mkdir -p "${d}"
|
|
{
|
|
[ -n "${build_name}" ] && echo "build_name: ${build_name}"
|
|
[ -n "${serial}" ] && echo "serial: ${serial}"
|
|
} > "$d/build.info"
|
|
fi
|
|
|
|
## --------------
|
|
# for maverick and newer, use LABEL= for the '/' entry in fstab
|
|
if [ -n "${root_fs_label}" ]; then
|
|
bl="[:blank:]"
|
|
lstr="LABEL=${root_fs_label}"
|
|
sed -i "s,^[^#${bl}]*\([${bl}]*/[${bl}].*\),${lstr}\1," "${rootd}/etc/fstab"
|
|
fi
|
|
cat > /etc/fstab << EOM
|
|
LABEL=cloudimg-rootfs / ext4 defaults 0 0
|
|
EOM
|
|
|
|
## Make sure that the update-motd.d directory exists
|
|
[ ! -e "${rootd}/etc/update-motd.d" ] &&
|
|
mkdir -p "${rootd}/etc/update-motd.d"
|
|
|
|
## write a MOTD file advertising support for images
|
|
cat > "${rootd}/etc/update-motd.d/51-cloudguest" << EOF
|
|
#!/bin/sh
|
|
#
|
|
${CLOUD_IMG_STR}
|
|
# This file is not managed by a package. If you no longer want to
|
|
# see this message you can safely remove the file.
|
|
echo ""
|
|
echo " Get cloud support with Ubuntu Advantage Cloud Guest:"
|
|
echo " http://www.ubuntu.com/business/services/cloud"
|
|
EOF
|
|
|
|
chmod +x "${rootd}/etc/update-motd.d/51-cloudguest"
|
|
|
|
# for quantal and newer, add /etc/overlayroot.local.conf
|
|
# but do not overwrite anything that somehow got there
|
|
if [ -f "${rootd}/etc/overlayroot.conf" ] &&
|
|
[ ! -f "${rootd}/etc/overlayroot.local.conf" ]; then
|
|
{
|
|
echo "${CLOUD_IMG_STR}"
|
|
echo "overlayroot_cfgdisk=LABEL=OROOTCFG"
|
|
} > "${rootd}/etc/overlayroot.local.conf"
|
|
fi
|
|
|
|
# previous steps may have left a dangling symlink here with
|
|
# SUBPROJECT=minimized and that breaks lb_chroot_hacks step
|
|
if [ -L "${rootd}/boot/initrd.img" ] && [ ! -e "${rootd}/boot/initrd.img" ]; then
|
|
rm "${rootd}/boot/initrd.img"
|
|
fi
|
|
|
|
#### END COMMON ARCH FUNCTIONS
|
|
|
|
|
|
case $arch in
|
|
# ARM images are special
|
|
armhf|arm64)
|
|
# Dirty hack because SUBARCH doesn't exist when running chroot hooks,
|
|
# and we don't want raspi2 images to depend on a cloud data source:
|
|
if _xchroot "${rootd}" dpkg -l linux-image-raspi2 2>/dev/null | grep -q '^.i'; then
|
|
fake_cloud_init
|
|
fi
|
|
|
|
echo "Image architecture is ARM. Existing vmbuilder-fixups"
|
|
|
|
exit 0
|
|
;;
|
|
powerpc|ppc64el|s390x)
|
|
exit 0
|
|
;;
|
|
esac
|
|
|
|
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
|
|
}
|
|
|
|
## install / setup grub2
|
|
gprobe="${rootd}/usr/sbin/grub-probe"
|
|
moved=0
|
|
if [ -f "${gprobe}" ]; then
|
|
mv "${gprobe}" "${gprobe}.dist"
|
|
moved=1
|
|
fi
|
|
psuedo_grub_probe > "${gprobe}"
|
|
chmod 755 "${gprobe}"
|
|
|
|
# for Quantal and later, use /etc/default/grub.d functionality
|
|
# rather than modifying the grub configuration itself.
|
|
# This avoids the mess of having to do dpkg stuff
|
|
# LP: 1179940
|
|
mkdir -p "${rootd}/etc/default/grub.d"
|
|
cat << EOF > "${rootd}/etc/default/grub.d/50-cloudimg-settings.cfg"
|
|
# Cloud Image specific Grub settings for Generic Cloud Images
|
|
${CLOUD_IMG_STR}
|
|
|
|
# Set the recordfail timeout
|
|
GRUB_RECORDFAIL_TIMEOUT=0
|
|
|
|
# Do not wait on grub prompt
|
|
GRUB_TIMEOUT=0
|
|
|
|
# Set the default commandline
|
|
GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0"
|
|
|
|
# Set the grub console type
|
|
GRUB_TERMINAL=console
|
|
EOF
|
|
_xchroot "${rootd}" update-grub2
|
|
|
|
# since this is a disk image, we technically don't need to install all the
|
|
# grub modules, as the image itself is not bootable. This makes for a small
|
|
# disk image
|
|
_xchroot "${rootd}" update-grub
|
|
|
|
# reconfigure grub so that upgrades to grub-pc do not force a debconf config
|
|
# changed prompt (LP: #1009294). This re-runs update-grub
|
|
_xchroot "${rootd}" env DEBIAN_FRONTEND=noninteractive \
|
|
dpkg-reconfigure grub-pc
|
|
|
|
grub2cfg="${rootd}/boot/grub/grub.cfg"
|
|
[ ! -f "${grub2cfg}" ] ||
|
|
sed -i -e "s,root=/dev/[hs]da1,root=LABEL=${root_fs_label}," "${grub2cfg}"
|
|
|
|
[ ${moved} -eq 0 ] || mv "${gprobe}.dist" "${gprobe}"
|
|
|
|
## modify /boot/grub/menu.lst if it exists
|
|
## this is generated at install time by grub-legacy-ec2, but will have
|
|
## devices as found from the _xchroot. Here we write what it will be on ec2
|
|
if [ -f "${rootd}/boot/grub/menu.lst" ]; then
|
|
grub_root="(hd0)"
|
|
linux_root=/dev/sda1
|
|
[ -n "${root_fs_label}" ] && linux_root="LABEL=${root_fs_label}"
|
|
# the sed code below basically fixes/sets the following lines in a
|
|
# /boot/grub/menu.lst file:
|
|
# # kopt=root=xxxxxxx ro
|
|
# kernel /boot/vmlinuz-... root=xxxxxx ....
|
|
# # groot=xxxxx
|
|
# root xxxxx
|
|
# uuuid xxxxx
|
|
sed -i "${rootd}/boot/grub/menu.lst" \
|
|
-e "s|^\(# kopt=root=\)[^ ]*|\1${linux_root}|" \
|
|
-e "s|^\(kernel.*root=\)[^ ]*|\1${linux_root}|" \
|
|
-e "s|^\(# groot=\)[^ ]*|\1${grub_root}|" \
|
|
-e "s|^\(root\|uuid\)\([[:space:]]*\).*|root\2${grub_root}|"
|
|
|
|
# grub-legacy-ec2 writes this ucf entry. since we've modified
|
|
# /boot/grub/menu.lst, we have to remove it, or the user will
|
|
# get prompted for a 3 way merge of the changes the first time this runs
|
|
_xchroot "${rootd}" /usr/bin/ucfr --purge grub /var/run/grub/menu.lst
|
|
fi
|
|
|
|
# vi: ts=3 expandtab
|