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#!/bin/bash
# This file is part of dracut.
# SPDX-License-Identifier: GPL-2.0-or-later
# Prerequisite check(s) for module.
check() {
# If the binary(s) requirements are not fulfilled the module can't be installed
require_binaries \
systemd-ask-password \
systemd-tty-ask-password-agent \
|| return 1
# Return 255 to only include the module, if another module requires it.
return 255
}
# Module dependency requirements.
depends() {
if [[ $hostonly ]]; then
# A password cannot be entered if there is no graphical output during boot,
# as is the case in aarch64, where efifb does not work with qemu-system-aarch64:
# - virtio-gpu-pci does not expose a linear framebuffer
# - virtio-vga is not supported
# - ramfb is not enough
# Therefore, depend on the drm module if virtio_gpu is loaded on the system.
if [[ ${DRACUT_ARCH:-$(uname -m)} == arm* || ${DRACUT_ARCH:-$(uname -m)} == aarch64 ]] \
&& grep -r -qs "virtio:d00000010v" /sys/bus/virtio/devices/*/modalias; then
echo drm
fi
fi
# Return 0 to include the dependent module(s) in the initramfs.
return 0
}
# Install the required file(s) for the module in the initramfs.
install() {
inst_multiple -o \
"$systemdsystemunitdir"/systemd-ask-password-console.path \
"$systemdsystemunitdir"/systemd-ask-password-console.service \
"$systemdsystemunitdir"/sysinit.target.wants/systemd-ask-password-console.path \
systemd-ask-password \
systemd-tty-ask-password-agent
# Enable the systemd type service unit for systemd-ask-password.
$SYSTEMCTL -q --root "$initdir" enable systemd-ask-password-console.service
# Install systemd-ask-password plymouth units if plymouth is enabled.
if dracut_module_included "plymouth"; then
inst_multiple -o \
"$systemdsystemunitdir"/systemd-ask-password-plymouth.path \
"$systemdsystemunitdir"/systemd-ask-password-plymouth.service
$SYSTEMCTL -q --root "$initdir" enable systemd-ask-password-plymouth.service
fi
# Uncomment this section if the usecase for wall module in the initramfs arises.
# Install systemd-ask-password wall units if <wall module> is enabled.
#if dracut_module_included "<wall module>"; then
# inst_multiple -o \
# $systemdsystemunitdir/systemd-ask-password-wall.path \
# $systemdsystemunitdir/systemd-ask-password-wall.service \
# $systemdsystemunitdir/multi-user.target.wants/systemd-ask-password-wall.path \
#
# $SYSTEMCTL -q --root "$initdir" enable systemd-ask-password-wall.service
#fi
}
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