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
38 lines
1.7 KiB
Plaintext
38 lines
1.7 KiB
Plaintext
TARGET_OS_NAME="Omarchy"
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KERNEL_CMDLINE[default]+=" quiet splash loglevel=0 systemd.show_status=false rd.udev.log_level=0 vt.global_cursor_default=0"
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# Kernel 7.1 unpacks the initramfs asynchronously, which races /init: the
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# early /proc, /sys, /dev, and /run mounts fail while unpacking settles, so
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# plymouthd exits when it can't read /proc/cmdline and encrypted boots fall
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# back to an unthemed text LUKS prompt. Unpack synchronously until the race
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# is fixed upstream.
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KERNEL_CMDLINE[default]+=" initramfs_async=0"
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# systemd 257 and later asks the console for its size with ANSI escape
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# sequences when PID 1 starts, and waits for the reply. With Plymouth holding
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# the VT the reply sometimes never comes, and the boot sits on a black screen
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# at "Starting Switch Root" until a key is pressed: about 1 boot in 10. A dumb
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# $TERM for the console makes systemd skip the query. Nothing visible changes
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# under "quiet splash". Drop it once a systemd release boots clean in a
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# repeated boot test.
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KERNEL_CMDLINE[default]+=" systemd.tty.term.console=dumb"
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CUSTOM_UKI_NAME="omarchy"
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ENABLE_LIMINE_FALLBACK=yes
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# Find and add other bootloaders
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FIND_BOOTLOADERS=yes
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# Keep T2 Macs on their specialized kernel; prefer linux-omarchy elsewhere.
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BOOT_ORDER="linux-t2, linux-omarchy, linux-omarchy-*, *, *fallback, Snapshots"
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# Snapper is configured with NUMBER_LIMIT="5" (see default/snapper/root), but
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# limine-snapper-sync can see the newly created sixth snapshot before cleanup
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# restores the retained snapshot count to 5. Allow for that creation window:
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# Snapshot limit mismatch: 6 Snapper snapshots exceed configured
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# MAX_SNAPSHOT_ENTRIES=5
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MAX_SNAPSHOT_ENTRIES=6
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SNAPSHOT_FORMAT_CHOICE=5
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