No description
Mathieu Benoit
04ee9be5cc
The previous commit read the chroot's "coreutils needs libselinux.so.1" as a missing package. It is not one. Arch has no libselinux at all -- the clone 404s -- and Arch's coreutils declares no selinux dependency, because its build chroot has no selinux/selinux.h to find. Ours found one. Ubuntu carries libselinux1-dev, gnulib probes for the header unconditionally, and the audit names every victim: coreutils 13 binaries findutils find sed tar glibc makedb --without-selinux per package, which is what Arch gets for free. Arch ships neither chcon nor runcon either, so this converges with Arch rather than diverging. tar and find matter most: stage 2 runs makepkg inside this rootfs, and makepkg calls both. glibc is deliberately left alone. Nothing runs makedb, and rebuilding glibc would relink the foundation under sixty-nine other packages; stage 2 does it in a chroot where the header cannot be found. --- FR --- Le commit précédent a lu le « coreutils réclame libselinux.so.1 » du chroot comme un paquet manquant. Ce n'en est pas un. Arch n'a aucun libselinux — le clone rend un 404 — et son coreutils ne déclare aucune dépendance selinux, faute de selinux/selinux.h dans son chroot de construction. Le nôtre en a trouvé un. Ubuntu embarque libselinux1-dev, gnulib sonde l'en-tête sans condition, et l'audit nomme chaque victime : coreutils 13 binaires findutils find sed tar glibc makedb --without-selinux par paquet, ce qu'Arch obtient gratuitement. Arch ne livre ni chcon ni runcon non plus : on converge donc vers Arch au lieu de s'en écarter. tar et find sont les plus critiques — l'étage 2 lance makepkg dans ce rootfs, et makepkg les appelle tous deux. glibc est laissé tel quel, délibérément. Rien n'exécute makedb, et le reconstruire relierait la fondation sous soixante-neuf autres paquets ; l'étage 2 s'en charge dans un chroot où l'en-tête est introuvable. Assisted-by: Claude Opus 5 |
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| .github/workflows | ||
| arch-kernel | ||
| boot | ||
| patches | ||
| scripts | ||
| .env.example | ||
| .gitignore | ||
| CODEOWNERS | ||
| Containerfile | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| TODO.md | ||
Arch Linux s390x
A port of Arch Linux to IBM s390x mainframe architecture with systemd support.
Boots a full Arch Linux system on IBM mainframes (or QEMU s390x emulation) using a hybrid build: cross-compilation for the kernel, native s390x compilation on z/VM for userspace.
Quick Start
make container # build dev container (first time)
cp .env.example .env # configure z/VM access
make all # build kernel + initramfs + systemd
make test-systemd # boot it
What Works
- Arch Linux kernel 6.18.6-arch1 with Arch patches, cross-compiled
- Initramfs via modified mkinitcpio
- Static busybox built natively on z/VM, 2.3MB
- Root filesystem with ext4, switch_root to real rootfs
- Systemd as PID 1
Pacman, bash, and GNU coreutils are not yet ported.
Build System
The build uses two tiers:
Cross-compilation (x86_64 host): Kernel is built in a Fedora 43 container with s390x-linux-gnu-gcc. Initramfs is generated with a patched mkinitcpio that handles cross-architecture binary injection.
Native compilation (s390x z/VM): Busybox and systemd must be built on real s390x hardware. The z/VM system runs RHEL 9.6 with GCC 11.5.0. Scripts handle SSH deployment and retrieval automatically via .env configuration.