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#!/usr/bin/env bash
show_splash() {
if [ -e "/etc/splash.ppm.gz" ]; then
systemd-preserve-process-marker /bin/busybox fbsplash -x -b -s "/etc/splash.ppm.gz" &
elif [ -e "/etc/splash.ppm" ]; then
systemd-preserve-process-marker /bin/busybox fbsplash -x -b -s "/etc/splash.ppm" &
else
echo "Splash screen requested, but not found in initramfs..."
fi
}
init_drm() {
# taken from dracut's plymouth module
# first trigger graphics subsystem
udevadm trigger --action=add --attr-match=class=0x030000 >/dev/null 2>&1
# first trigger graphics and tty subsystem
udevadm trigger --action=add \
--subsystem-match=graphics \
--subsystem-match=drm \
--subsystem-match=tty \
--subsystem-match=acpi \
>/dev/null 2>&1
udevadm settle --timeout=180 2>&1
}
if grep -wqE 'splash' /proc/cmdline; then
# first init graphics
init_drm
# disable non-critical kernel messages
echo "1 1 0 1" > /proc/sys/kernel/printk
# disable systemd's status message on console
# See: https://www.freedesktop.org/software/systemd/man/systemd.html#Signals
kill -55 1
# clear console
busybox clear
# disable cursor
echo -e "\033[?25l" > /dev/console
# finally:
show_splash
fi
true
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