Package: debos Version: 1.0.0+git20201203.e939090-4+b3 Severity: important Tags: upstream X-Debbugs-Cc: sascha-debian-bugs-debos-2022-03...@silbe.org
Dear Maintainer, debos does not work on systems running a 5.13 or newer kernel because the 9pnet_virtio and virtio_pci modules cannot be loaded: === Begin debos --show-boot output === [ 1.443424] Run /init as init process modprobe: can't load module virtio_pci_modern_dev (kernel/drivers/virtio/virtio_pci_modern_dev.ko): No such file or directory [ 1.511627] 9pnet: Installing 9P2000 support modprobe: can't load module netfs (kernel/fs/netfs/netfs.ko): No such file or directory mount: mounting usr on /usr failed: No such device mount: mounting sbin on /sbin failed: No such device mount: mounting bin on /bin failed: No such device mount: mounting lib on /lib failed: No such device /init: exec: line 28: /lib/systemd/systemd: not found [ 1.534807] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00 [...] open /tmp/fakemachine-733191250/result: no such file or directory === End debos --show-boot output === Since Linux 5.13 there's a new module "netfs" that the "9p" module depends on. Because fakemachine does not take module dependencies into account, "netfs" is not copied into the initramfs. This is in fact the same issue that Steve Langasek encountered in #989145 "Please do not use uml fakemachine backend in the DEP-8 test". The naive approach of adding "netfs" to InitrdModules would break support for kernels older than 5.13. The real solution would be to perform module dependency resolution but quick work-arounds would be to either copy all modules (probably increasing early boot memory usage by ~0.5GiB which may be acceptable) or to copy "netfs" only if present. Similarly, virtio_pci depends on virtio_pci_modern_dev which isn't included in InitrdModules. The same compatibility concerns apply. Sascha -- System Information: Debian Release: 11.3 APT prefers stable-updates APT policy: (990, 'stable-updates'), (990, 'stable-security'), (990, 'stable'), (500, 'stable-debug'), (100, 'testing'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386, armhf, armel Kernel: Linux 5.16.0-0.bpo.4-amd64 (SMP w/4 CPU threads; PREEMPT) Locale: LANG=en_GB, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en:en_US:C:de_DE:de Shell: /bin/sh linked to /bin/bash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages debos depends on: ii busybox 1:1.30.1-6+b3 ii debootstrap 1.0.123 ii libc6 2.31-13+deb11u3 ii libglib2.0-0 2.66.8-1 ii libostree-1-1 2020.8-2+deb11u1 ii qemu-system-x86 1:5.2+dfsg-11+deb11u1 ii qemu-user-static 1:5.2+dfsg-11+deb11u1 ii systemd-container 247.3-7 Versions of packages debos recommends: ii bmap-tools 3.5-3 ii bzip2 1.0.8-4 ii e2fsprogs 1.46.2-2 ii linux-image-amd64 5.16.12-1~bpo11+1 ii mount 2.36.1-8+deb11u1 ii ovmf 2020.11-2+deb11u1 ii parted 3.4-1 ii udev 247.3-7 ii xz-utils 5.2.5-2 ii zip 3.0-12 debos suggests no packages. -- no debconf information
