About 1 boot in 10 of an installed system stops on a black screen at
"Starting Switch Root" until a key is pressed. systemd 257 and later
asks the console for its size with ANSI escape sequences when PID 1
starts and waits for the reply; with Plymouth holding the VT the reply
sometimes never comes.
Measured in QEMU on repeated boots of one install: 3 hangs in 30 and 1
in 40 on the prebuilt UKI, 7 in 40 on the stock initramfs, every one of
them ended by pressing Enter; none in 40 with a serial console, none in
40 with plymouth.enable=0, and none in 80 with
systemd.tty.term.console=dumb, which makes systemd skip the query.
systemd fixed two variants of this in v261; Arch's 261.2 still shows it.
The parameter goes where the last Plymouth boot fix went (3f725531,
initramfs_async=0): into the packaged omarchy-defaults.conf for fresh
installs, and a migration rebuilds the boot image on existing systems,
once per machine, only where the booted command line lacks it. Nothing
visible changes under "quiet splash".
Refs #2931
Kernel 7.1 unpacks the initramfs asynchronously, which races /init: the
early /proc, /sys, /dev, and /run mounts fail with EPERM while unpacking
settles, so plymouthd exits when it can't read /proc/cmdline and encrypted
boots fall back to an unthemed text LUKS prompt. Boot still completes only
because the kernel passes key=value cmdline params to init as environment
variables and devtmpfs is automounted.
Force synchronous unpacking via initramfs_async=0 until the race is fixed
upstream: in the packaged defaults for fresh installs, and via migration
for existing systems.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* Align MAX_SNAPSHOT_ENTRIES with Snapper retention
Snapper is configured with NUMBER_LIMIT="5", but limine-snapper-sync
also counts the freshly-created / currently-booted snapshot, so five
retained snapshots are reported as six entries and it warns on every
snapshot and update:
Snapshot limit mismatch: 6 Snapper snapshots exceed configured
MAX_SNAPSHOT_ENTRIES=5
Raise MAX_SNAPSHOT_ENTRIES to 6 (NUMBER_LIMIT + 1) so the boot-menu cap
and Snapper's retention agree and the off-by-one warning stops. (An
alternative is MAX_SNAPSHOT_ENTRIES=auto, which derives the cap from
Snapper directly; kept an explicit value here to preserve the existing
boot-menu limit.)
Co-Authored-By: Claude <noreply@anthropic.com>
* Clarify Limine snapshot limit
---------
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: David Heinemeier Hansson <david@hey.com>
Emir Beganovic