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Blake Ridgway bb031ca92f chore: base Arcline OS on Debian trixie (current stable)

Bookworm became oldstable in July 2026 (standard support ended
2026-07-11). A new distro should be built on the current stable, which
is now Trixie (13.6): newer kernel (6.12 LTS vs 6.1, whose LTS ends Dec
2026), newer systemd/containers/toolchains, KDE 6 for the workstation
edition, and a year of stability behind it (full support until
2028-08-09).

- versions.mk / common.sh: DEBIAN_SUITE bookworm -> trixie, kernel 6.1 -> 6.12
- package list header comments: bookworm -> trixie
- GitLab CI: debian:bookworm -> debian:trixie build images
- docs (architecture, building): base references updated

All packages used across the three editions exist in Trixie unchanged.

2026-08-21 14:06:29 -05:00

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Building Arcline OS

Prerequisites

A Debian-family host (or container) with root/sudo:

debootstrap        # rootfs bootstrap
squashfs-tools     # ISO rootfs compression
grub2-common       # grub-mkrescue (hybrid ISO)
xorriso cpio       # ISO assembly
bash make curl git # build orchestration
go (≥ 1.21)        # only needed for `make toolchain`

Check or install them:

scripts/check-host-deps.sh            # report what's missing
scripts/check-host-deps.sh --install  # apt-get install the missing bits

Quickstart

make check          # validate the tree (fast, offline, safe)
make rootfs-server  # build just the server rootfs
make iso-server     # build a bootable server ISO
make iso            # build all three editions
make image-cloud    # build the cloud edition as a qcow2 disk image
make toolchain      # build the 11 Go tools into .deb
make vendor         # build Grafana/Loki/Promtail .debs
make test           # run smoke tests against built rootfs(es)

Outputs

Everything lands under build/:

Path	Contents
`build/rootfs/<edition>/`	extracted rootfs (from `make rootfs-*`)
`build/artifacts/arcline-<edition>-<version>-<arch>.tar.xz`	archived rootfs
`build/artifacts/arcline-<edition>-<version>-<arch>.iso`	bootable live ISO
`build/artifacts/arcline-<edition>-<version>-<arch>.qcow2`	bootable disk image
`build/debs/*.deb`	Arcline toolchain + vendor packages

Each artifact ships with a .sha256 checksum file.

Disk images & installing

make image-<edition> builds a bootable qcow2 disk image (the cloud edition's primary output; also handy for VM-testing server/workstation). Options: --format raw, --size 4G, --boot efi.
scripts/install.sh /dev/sdX --edition server installs a built rootfs onto a real disk (asks for explicit confirmation, then partitions, lays out btrfs subvolumes, installs GRUB, and writes a real fstab). Both reuse the shared scripts/deploy-disk.sh.

Secure boot

Optional, MOK-based. See secureboot:

scripts/secureboot/gen-keys.sh
ARCLINE_SIGN=1 make iso-server

Reproducibility knobs

Set these as environment variables or edit versions.mk:

Variable	Meaning	Default
`VERSION`	release version string	`0.1.0`
`DEBIAN_SUITE`	Debian base	`trixie`
`ARCH`	target architecture	`amd64`
`DEBIAN_MIRROR`	mirror for the base	`http://deb.debian.org/debian`
`ARCLINE_LIVE`	install live-boot into rootfs	unset (set by ISO build)
`ARCLINE_LOCK_ROOT`	lock root account (`passwd -l root`)	`0`
`ARCLINE_EXTRA_REPOS`	fetch grafana/loki upstream repos	`0`
`ARCLINE_TOOLCHAIN`	toolchain in image builds	`auto`
`ARCLINE_SIGN`	sign boot chain with the MOK (secure boot)	`0`

Building without the Arcline toolchain

The 11 Go tools (see docs/toolchain.md) are optional in an image — a normal make iso-server with no .debs in build/debs/ already produces a minimal, toolchain-free image. This is controlled by ARCLINE_TOOLCHAIN:

Mode	Behaviour
`auto` (default)	install the tools if `build/debs/*.deb` exist, otherwise build without them (with a warning)
`skip`	never install the tools, even if debs are present
`require`	fail the build if no toolchain debs are available

Examples:

make iso-server                # auto: tools in if you ran `make toolchain`
make iso-server-minimal        # skip: guaranteed toolchain-free image
ARCLINE_TOOLCHAIN=skip make iso-server
ARCLINE_TOOLCHAIN=require make iso-server   # release builds must ship the tools

Everything else — hardened base, firewall, btrfs, observability (Prometheus/node_exporter are Debian-main packages), zero-telemetry — is independent of the toolchain and always included.

Notes on the ISO

The ISO boots a live system (via live-boot): the rootfs is compressed to a squashfs and mounted on boot, so you can try an edition before installing it to disk. The same rootfs can be installed with the btrfs layout via btrfs/init.sh (the installer is follow-up work — see docs/architecture.md).

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