livecd-rootfs/live-build/ubuntu/hooks/030-ubuntu-live-system-seed.binary
2025-08-13 10:32:03 +12:00

75 lines
2.8 KiB
Bash

#!/bin/bash
# create the system seed for TPM-backed FDE in the live layer of the installer.
set -eux
case ${PASS:-} in
*.live)
;;
*)
exit 0
;;
esac
if [ -n "${SUBPROJECT:-}" ]; then
echo "We don't run Ubuntu Desktop hooks for this project."
exit 0
fi
. config/binary
. config/functions
# Generation of the model:
# * At https://github.com/canonical/models one can find a repo of raw,
# unsigned, input .json files, and their signed .model equivalents.
# * At least once per cycle, update the json for the new Ubuntu version.
# To do this, take the previous cycle ubuntu-classic-$ver-amd64.json file,
# rename for the new version, and do any necessary updates including fixing
# the versions of tracks.
# * When this is done, the json needs to be signed. This needs to be done by
# a Canonical employee - try asking someone who has recently opened PRs on
# https://github.com/canonical/models with the signed models.
# * Ensure the signed and unsigned version of the models are updated in the
# models repo.
# * The signed model can then be placed here in livecd-rootfs at
# live-build/${PROJECT}/ubuntu-classic-amd64.model
# env SNAPPY_STORE_NO_CDN=1 snap known --remote model series=16 brand-id=canonical model=ubuntu-classic-2410-amd64 > config/classic-model.model
model=/usr/share/livecd-rootfs/live-build/${PROJECT}/ubuntu-classic-amd64.model
# see below note about "dangerous" model
CHANNEL=${CHANNEL:-stable}
channel=""
if [ -n "${CHANNEL:-}" ]; then
channel="--channel $CHANNEL"
fi
# Set UBUNTU_STORE_COHORT_KEY="+" to force prepare-image to fetch the latest
# snap versions regardless of phasing status
# this is the normal prepare-image invocation. This is not used right now as
# the model in question is the "dangerous" model so that we can override the
# channel of pc-kernel and others to get a matching set of snaps.
# env SNAPPY_STORE_NO_CDN=1 UBUNTU_STORE_COHORT_KEY="+" snap prepare-image \
# --classic $model $channel chroot
# FIXME - go back to the stable model and remove all the `--snap` overrides
env SNAPPY_STORE_NO_CDN=1 UBUNTU_STORE_COHORT_KEY="+" snap prepare-image \
--classic $model $channel \
--snap=pc=classic-25.10/stable \
--snap=pc-kernel=25.10/candidate \
--snap=firmware-updater=1/stable/ubuntu-25.10 \
--snap=desktop-security-center=1/stable/ubuntu-25.10 \
--snap=prompting-client=1/stable/ubuntu-25.10 \
--snap=snap-store=2/stable/ubuntu-25.10 \
--snap=gtk-common-themes=latest/stable/ubuntu-25.10 \
--snap=firefox=latest/stable/ubuntu-25.10 \
--snap=gnome-42-2204=latest/stable/ubuntu-25.10 \
--snap=snapd-desktop-integration=latest/stable/ubuntu-25.10 \
chroot
mv chroot/system-seed/systems/* chroot/system-seed/systems/enhanced-secureboot-desktop
rsync -av chroot/system-seed/{systems,snaps} chroot/var/lib/snapd/seed
rm -rf chroot/system-seed/