Support distributions that ship a full .img (Raspberry Pi OS, moode, RetroPie,
Manjaro ARM) rather than a rootfs tarball, by loop-mounting the image and
copying its boot + root partitions into a fresh LUKS container.
- distributions.yml/catalog.py/choosers.py: raspios catalog (lite64/desktop64/
lite32 via the stable _latest redirects) + choose_raspios.
- plan.py: source_url override so a _latest redirect downloads under an .img.xz
name that decompress_command recognises.
- transfer.py: transfer_disk_image (loop-mount -> repartition -> LUKS -> rsync
copy with progress, cp fallback -> fix boot fstab); transfer_image gains
interactive= and routes encrypted non-arch images here; download_image gains
force_prompt.
- loopimg.py: losetup attach/detach/partition helper.
- fsutil.drop_fstab_mount + register_encrypted_root: replace a stock image's
existing / fstab line instead of colliding with it.
- encryption.configure_encryption returns the onion address.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Split the mkinitcpio-only remote-LUKS-unlock path into an InitramfsBackend
ABC with a get_backend() dispatch, and add the initramfs-tools backend for
Debian / Raspberry Pi OS.
- base.py: six-step backend contract; encryption.py becomes a thin,
distro-neutral sequencer (get_backend by distribution).
- initramfs_tools.py: crypttab `none luks,initramfs`, cmdline rewritten to
root=/dev/mapper + ip=::::host:eth0:dhcp, dropbear-initramfs
authorized_keys, update-initramfs -k all (no build-host uname leak).
- shipped hooks (configuration/initramfs-tools/*): single-hop non-anonymous
onion, libnss DNS baking, sed-not-source DHCP, kill-tor-before-pivot.
- shared offline onion keygen in keygen.py; tor.py removed (logic moved to
mkinitcpio.py).
- raspios added to the apt distro family (session.py, raspberry.py).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Encrypted image setups can now bake a Tor onion service into the initramfs
so the dropbear unlock shell stays reachable behind NAT or a dynamic IP.
When the user opts in, configure_encryption installs tor + busybox, drops
the mkinitcpio hooks (ordered `netconf tor dropbear encryptssh`), generates
the v3 onion keys offline in the image chroot, and prints the stable
.onion address. Unlock with `torsocks ssh root@<onion-address>`.
The runtime hook syncs the clock via NTP first (RTC-less boards boot at
1970, which Tor's consensus checks reject) and starts the onion service
pointing at dropbear on 127.0.0.1:22.
Hardening baked in from an adversarial review of the shipped path:
- cmdline.txt boot path (RPi4-class firmware boot) now sets the same
ip=::::<host>:eth0:dhcp net.ifnames=0 params as the boot.txt path, so
the initramfs actually gets a network and the onion can publish.
- the initramfs bakes in libnss_dns.so.2 so the NTP hostname resolves.
- the hook extracts DHCP DNS with sed instead of sourcing the lease files,
which would run attacker-controlled DHCP option strings as root pre-boot.
- NTP is attempted unconditionally (bounded), not gated on DHCP-provided DNS.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Bash scripts were untestable and duplicated device/LUKS/mount logic;
the lim/ package centralizes it behind one subprocess wrapper and a
YAML image catalog (single point of truth).
BREAKING CHANGE: scripts/*.sh removed. Use `lim --type <cmd>`; new
types mount/umount/single-boot/raid1-boot/lock/unlock/import/export
replace direct script calls. --extra is deprecated and ignored.
- distributions.yml + lim/catalog.py hold the image catalog (PyYAML)
- pytest suite: 102 tests with mocked subprocess (tests/unit) and a
250-line max file-length guard (tests/lint)
- ruff strict (select ALL), GitHub Actions CI, Dependabot; Travis gone
- Makefile: install (symlink ~/.local/bin/lim) and test targets
- fixes over bash: SUDO_USER-aware chown, mmcblk/nvme partition paths,
sha512 checksum support, whole-pipeline failure detection, blkid
UUID fallback for pre-mounted images, conditional fstab seeding for
PARTUUID/LABEL images, clean errors for missing binaries
