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Merged
aledbf merged 1 commit into from
Oct 1, 2026
Merged

kernel: a config with erofs builds #66

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7 changes: 1 addition & 6 deletions kernel/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -186,11 +186,7 @@ RUN <<EOT
# image/ produces and what a writable layer is formatted as; overlayfs stacks them. A
# base image in a filesystem this kernel cannot mount is a VM that boots and finds no
# root, so changing image/mkosi.conf to xfs or squashfs starts here, not there.
#
# erofs was here as the read-only half of a containerd path that qcow2 replaced, and
# nothing has mounted one since. It brought CONFIG_EROFS_FS_ZIP with LZMA at 16 streams,
# DEFLATE and ZSTD decompressors for an image format this machine never reads. Removed
# 2026-09-26; a kernel that needs it again adds the symbol and this assertion together.

# Pressure stall information, /proc/pressure/{cpu,memory,io}: how long tasks in the guest
# waited for each, which is the question when a busy VM stops answering, and what
# systemd-oomd acts on. Off, and on by default: a psi=1 on the command line would be one
Expand Down Expand Up @@ -233,7 +229,6 @@ RUN <<EOT
done

grep -q "CONFIG_EXT4_FS=y" .config || (echo "ERROR: CONFIG_EXT4_FS not enabled (the base image cannot be mounted)!" ; exit 1)
! grep -q "CONFIG_EROFS_FS=y" .config || (echo "ERROR: CONFIG_EROFS_FS is back; it is dead weight here (see above)!" ; exit 1)

# No virtual consoles. This machine's QEMU ships no VGA at all and its console is one
# 16550 on ttyS0, so CONFIG_VT builds 64 tty devices that nothing opens and that udev
Expand Down