Emir Beganovic
f03bf06742
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
32 lines
1.6 KiB
Bash
32 lines
1.6 KiB
Bash
echo "Stop the boot from waiting on a black screen for the console to answer"
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# systemd asks the console for its size when PID 1 starts and waits for the
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# reply. With Plymouth holding the screen the reply sometimes never comes, and
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# about 1 boot in 10 sits on a black screen until a key is pressed.
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# omarchy-defaults.conf now carries systemd.tty.term.console=dumb, which makes
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# systemd skip the query. The package has already written that file by the
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# time this runs; the boot image still holds the old command line until it is
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# rebuilt.
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defaults_conf="${OMARCHY_LIMINE_DEFAULTS_CONF:-/etc/limine-entry-tool.d/omarchy-defaults.conf}"
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running_cmdline="${OMARCHY_RUNNING_CMDLINE:-/proc/cmdline}"
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rebuild_marker="${OMARCHY_LIMINE_REBUILD_MARKER:-/var/lib/omarchy/migrations/1791581004}"
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param="systemd.tty.term.console=dumb"
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omarchy-cmd-present limine-mkinitcpio || exit 0
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[[ -f $defaults_conf && -r $running_cmdline ]] || exit 0
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# The running kernel keeps its old command line until reboot, so a marker
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# records the machine-wide rebuild: another user's migration must not repeat
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# it before then, while a missing marker still retries an interrupted rebuild.
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[[ ! -e $rebuild_marker ]] || exit 0
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# A machine that boots with it already, or whose defaults were edited to leave
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# it out, has nothing to rebuild.
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[[ " $(<"$running_cmdline") " != *" $param "* ]] || exit 0
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grep -Eq "^KERNEL_CMDLINE\[default\]\+=\".*${param//./\\.}.*\"" "$defaults_conf" || exit 0
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echo "The booted kernel is missing $param; rebuilding the boot image"
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sudo limine-mkinitcpio
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sudo install -Dm644 /dev/null "$rebuild_marker"
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