04-kernel-bits.binary only handled ubuntu-server; desktop builds
(ubuntu, ubuntu-budgie, lubuntu, etc.) had no equivalent and so the
kernel never reached the ISO casper directory for MAKE_ISO=yes builds.
Centralise the logic in lb_binary_layered, which already knows which
passes are live passes and is where the kernel is subsequently removed
from the chroot overlay. The flavor is determined by convention:
- passes ending in .live (desktop builds) use LB_LINUX_FLAVOURS
- other live passes (server installer passes such as
"...installer.generic-hwe") encode the flavor as the final
dot-separated component of the pass name
The netboot sub-passes (e.g. installer.generic.netboot) are never
added to LIVE_PASSES, so is_live_layer already guards against them;
the explicit exit-0 that 04-kernel-bits.binary needed is not required.
MAKE_ISO is always "yes" when lb_binary_layered runs — every code path
that sets PASSES_TO_LAYERS=true also sets MAKE_ISO=yes — so no
conditional is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
For MAKE_ISO=yes builds, squashfs, kernel, initrd, manifests, and sizes
are now placed directly into config/iso-dir/iso-root/casper/ during the
build rather than creating livecd.* intermediates that get linked as
for-iso.* files and then copied into casper/ by isobuild.
This stops publishing the intermediate livecd.* artifacts so that only
livecd.*.iso and livecd.*.netboot.tar.gz are published for ISO builds.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Hooks that only source config/functions (not config/common) would fail
with "LIVECD_ROOTFS_ROOT: parameter not set" when calling setup_mountpoint
or any function that transitively calls it. This affected ubuntu, ubuntu-cpc,
and buildd hooks.
Rather than adding `. config/common` to every hook, prepend the
LIVECD_ROOTFS_ROOT assignment to config/functions at config time so it is
available to all callers automatically.
- Adding parition ordering using imagecraft
- Removing redundant locales install
- Better logging for empty ARCH and SUBPROJECT
- Using mktemp for mountpoint
- Added manifest and filelist generation
- Currently, we only produce minimal images for amd64
- Tested the changes by booting an instance on OVH
- Hook was also tested to be run in a local CPC Jenkins pipeline
Read http-proxy from --http-proxy flag or build-livefs.conf and pass it
to the VM at launch time via cloud-init user-data (apt.http_proxy /
apt.https_proxy). Also set package_update: true so cloud-init runs
apt-get update on first boot, removing the need for an explicit call.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Creates (or reuses) a per-suite LXD VM, mounts the livecd-rootfs
checkout into it, waits for the VM to be ready, installs dependencies,
and runs build-livefs inside the VM — keeping the host clean.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Provides a single command to run a livecd-rootfs build, replacing the
manual setup of auto/ symlinks and env vars that lpbuildd's
build_livefs.py encapsulates. Works from a git checkout, an installed
deb, or via the /usr/bin/build-livefs symlink.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Builds a real Ubuntu ISO in ~2-3 minutes (vs 30-60 for production)
by keeping the package set minimal (casper + linux-generic only) and
using lz4 squashfs compression.
Design:
- Two-pass layered build (PASSES_TO_LAYERS=true):
- base: installs casper
- base.generic (LIVE_PASSES): installs linux-generic, triggers
update-initramfs with CASPER_GENERATE_UUID=1 to embed UUID
- No package pool (POOL_SEED_NAME=), no universe, amd64 only
- SQUASHFS_COMP=lz4 (~10x faster than xz); create_squashfs() now
respects ${SQUASHFS_COMP:-xz} so all other projects are unaffected
- Germinate is skipped (only add_package is used, no add_task/pool)
New files:
- live-build/ubuntu-test-iso/hooks/01-test-iso.chroot_early
- live-build/ubuntu-test-iso/hooks/02-test-iso-kernel.binary
Modified:
- live-build/functions: honour $SQUASHFS_COMP in create_squashfs()
- live-build/gen-iso-ids: add ubuntu-test-iso -> Ubuntu-Test-ISO
- live-build/auto/config: IMAGEFORMAT, fs, COMPONENTS, germinate
skip, SQUASHFS_COMP default + per-project override, project block,
write SQUASHFS_COMP to config/common, lxd exclusion, hook copying
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
For no very good reason this is what debian-cd does, and what the grub
config isobuilder generates still expects. It probably makes sense to
switch to 'vmlinuz' like every other arch apart from ppc64el does but
for now I want to maintain compatibility with the old ISOs.
There are case in CPC built images where we don't want to create an SBOM.
Add an argument in create_manifest which defaults to creating an SBOM, but can also skip generating an SBOM
A change in 2024 [0] was made to debootstrap in which the keyring is now
switched from ubuntu-archive-keyring.gpg to
ubuntu-archive-removed-keys.gpg after a given release goes EOL. This
means that the Release signature cannot be verified after EOL since the
Release is signed with the ubuntu-archive-keyring.gpg. It is expected
that we can continue to build any release even after the suite is
closed.
This change adds a debootstrap configuration to override this behavior
and ensure all of our images are verified against the main archive key.
Refs: [0] https://git.launchpad.net/ubuntu/+source/debootstrap/commit/?id=4f8b3405097b9f655938528ae7105ec534eb7d1b
Use consistent formatting across all architectures: 4-space indent,
two spaces after "linux", one space after "initrd". Also fix an extra
blank line before "fi" in amd64's UEFI section caused by f-string
interpolation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
