postmarketos-initramfs: debug-shell 3.0 (MR 5000)

This incorprates the debug-shell functionality directly into the
initramfs, so it's no longer necessary to build and boot a custom
initramfs in order to debug your device.

Additionally, the behaviour of the debug-shell is entirely reworked, It
now creates an ACM serial gadget which can be accessed via any normal
terminal emulator (picocom, minicom, etc; or PuTTY on windows). Rather
than just invoking sh, the debug-shell now creates a respawning getty on
both the new virtual console and the active console (this will either be
the UART console or tty0/1).

It is necessary to spawn these shells via getty since the logging rework
means we can no longer assume that stdin/out/err reference a TTY.

In addition to the above, it is now possible to trigger a log dump by
holding volume up during boot. This can be useful for helping users
debug their devices if the issue doesn't result in a failure that can be
detected in the initramfs.

With these changes, the console-shell and debug-shell hook packages are
reduced to only adding the additional tools/features. console-shell is
still required for fbkeyboard, and debug-shell for the setup_usb_storage
tool.

Co-Developed-by: Clayton Craft <craftyguy@postmarketos.org>
Signed-off-by: Caleb Connolly <caleb@postmarketos.org>

.ci/shellcheck.sh

@@ -21,7 +21,6 @@ sh_files="
 	./main/postmarketos-installkernel/installkernel-pmos
 	./main/postmarketos-initramfs/init.sh
 	./main/postmarketos-initramfs/init_functions.sh
-	./main/postmarketos-mkinitfs-hook-debug-shell/20-debug-shell.sh
 	./main/postmarketos-mkinitfs-hook-debug-shell/setup_usb_storage.sh
 	./main/postmarketos-mkinitfs-hook-netboot/netboot.sh
 	./main/ttyescape/*.post-install

main/postmarketos-initramfs/00-initramfs-base.files

@@ -5,6 +5,7 @@
 /etc/unudhcpd.conf
 /lib/mdev/persistent-storage
 /sbin/blkid
+/usr/bin/iskey
 /usr/bin/unudhcpd
 /usr/sbin/kpartx
 /usr/share/deviceinfo/deviceinfo

main/postmarketos-initramfs/APKBUILD

@@ -1,7 +1,7 @@
 # Maintainer: Oliver Smith <ollieparanoid@postmarketos.org>
 # Co-Maintainer: Clayton Craft <clayton@craftyguy.net>
 pkgname=postmarketos-initramfs
-pkgver=2.7.1
+pkgver=3.0.0
 pkgrel=0
 pkgdesc="Base files for the postmarketOS initramfs / initramfs-extra"
 url="https://postmarketos.org"
@@ -19,6 +19,7 @@ depends="
 	e2fsprogs
 	e2fsprogs-extra
 	f2fs-tools
+	iskey
 	lz4
 	mdevd
 	mdev-conf
@@ -89,10 +90,10 @@ package() {
 sha512sums="
 59be0649ed87a72d93624bd8a2e3f8c99a0f32f7b7a26f99436de782beba55671472c269eeee86440efc87e0d7148a0bb335fa537791092e73878ca21330544a  00-default.modules
 9c0e8f6f61d5da191e03a1aa9d5d0ceb5baf1eae6dbb9bfb0af59817783525119ac8394b135f303f7b6434a3eab0b49185fb90379e06823db847a4999c75ce33  00-initramfs-base.dirs
-ab41b45b0613f25a61114ed8c8b92bc53c60838f6e2e0ba18c76e5369b2984e6023a0661887692673aca3f647f268c468a468f6b1ac424cfee609017a89481dd  00-initramfs-base.files
+0fed7dfdf940f5de15ca2fa636214d44ee8549afe5001b81beb0e337e865eb737916e158bc0ed7a7803adc81176386ae8edfc21150de62bb136fdfcdcb888b8b  00-initramfs-base.files
 8a4adad3785af474b36a09a05f6a3b2c4b4f43aac331a53b903abfa51ea12be1e3d1d807b7a6e66a1346815f3b0044daf8cd62e21e2dc75d2db13ee265a72985  00-initramfs-extra-base.files
-6bda477e9898420d4d9ef09a0abe4660f9d6bb483982df768e7142c94a14110fa1eee613c6cd12df5387250ce6ceee3061e7fffeac789a652ed0ac69a5e57f58  init.sh
+a993c8d3dadf54c7ef942c726f8e238194cf7ad8f9d8d1c43991f1ac9d5f4ec57a72f8005b122ee06bcf5b6fdf22a635cdb234aee2173d073196f7a6f7788ffe  init.sh
-cd2405db17311ee31ac0b8c968a916ec2bb7919b38c56269d01229a4d7a82559e4abd7199d66954c8fde70713b5458b4b4656da8f713e15375864b1b256c5e4f  init_functions.sh
+817c58403af779401932758d70a7c84d6d76a457b60327c1913e1758b66e6dbb19c4fcea8f0d4268e07f86f1b041e8fba47f9b01543c732c84d7c13cca1ff622  init_functions.sh
 ba3275a9af788c7c782322a22a0f144d5e50e3498ea6886486a29331f23ae89cd32d500a3635cfa7cab369afba92edc18aeca64ccbf0cd589061cce23d15b46c  unudhcpd.conf
 675e7d5bee39b2df7d322117f8dcaccc274d61beaf4d50ead19bbf2109446d64b1c0aa0c5b4f9846eb6c1c403418f28f6364eff4537ba41120fbfcbc484b7da7  mdev.conf
 "

main/postmarketos-initramfs/init.sh

@@ -46,12 +46,15 @@ if [ "$IN_CI" = "true" ]; then
 	fail_halt_boot
 fi
 
-# Always run dhcp daemon/usb networking for now (later this should only
-# be enabled, when having the debug-shell hook installed for debugging,
-# or get activated after the initramfs is done with an OpenRC service).
 setup_usb_network
 start_unudhcpd
 
+if grep -q "pmos.debug-shell" /proc/cmdline; then
+	debug_shell
+fi
+
+check_keys
+
 mount_subpartitions
 
 wait_boot_partition
@@ -91,14 +94,29 @@ setup_bootchart2
 # Switch root
 run_hooks /hooks-cleanup
 
-# Restore stdout and stderr to their original values
+echo "Switching root"
+
+# Restore stdout and stderr to their original values if they
+# were stashed
+if [ -e "/proc/1/fd/3" ]; then
 	exec 1>&3 2>&4
+elif ! grep -q "pmos.debug-shell" /proc/cmdline; then
+	echo "$LOG_PREFIX Disabling console output again (use 'pmos.debug-shell' to keep it enabled)"
+	exec >/dev/null 2>&1
+fi
 
 # Re-enable kmsg ratelimiting (might have been disabled for logging)
 echo ratelimit > /proc/sys/kernel/printk_devkmsg
 
 killall mdev udevd syslogd 2>/dev/null
 
+# Kill any getty shells that might be running
+for pid in $(pidof sh); do
+	if ! [ "$pid" = "1" ]; then
+		kill -9 "$pid"
+	fi
+done
+
 # shellcheck disable=SC2093
 exec switch_root /sysroot "$init"
 

main/postmarketos-initramfs/init_functions.sh

@@ -6,18 +6,45 @@ PMOS_BOOT=""
 PMOS_ROOT=""
 
 CONFIGFS=/config/usb_gadget
+CONFIGFS_ACM_FUNCTION="acm.usb0"
+HOST_IP="${unudhcpd_host_ip:-172.16.42.1}"
+
+deviceinfo_getty=""
+deviceinfo_name=""
+deviceinfo_codename=""
 
 # Redirect stdout and stderr to logfile
 setup_log() {
+	local console
+	console="$(cat /sys/devices/virtual/tty/console/active)"
+	local warn_null_console=""
+
+	# Stash fd1/2 so we can restore them before switch_root, but only if the
+	# console is not null
+	if [ -n "$console" ] ; then
+		# The kernel logs go to the console, and we log to the kernel. Avoid printing everything
+		# twice.
+		console="/dev/null"
+		exec 3>&1 4>&2
+	else
+		# Setting console=null is a trick used on quite a few pmOS devices. However it is generally a really
+		# bad idea since it makes it impossible to debug kernel panics, and it makes our job logging in the
+		# initramfs a lot harder. Let's encourage people to stop using this by printing a warning to dmesg
+		# and logging to every console we can.
+		# Instead folks should add 'quiet' or 'silent' to the kernel cmdline to disable logging.
+		console="/dev/$(echo "$deviceinfo_getty" | cut -d';' -f1)"
+		if ! [ -e "$console" ]; then
+			console="/dev/null"
+		fi
+		warn_null_console="true"
+	fi
+
 	# Disable kmsg ratelimiting for userspace (it gets re-enabled again before switch_root)
 	echo on > /proc/sys/kernel/printk_devkmsg
 
 	# Spawn syslogd to log to the kernel
 	syslogd -K
 
-	# Stash fd1/2 so we can restore them before switch_root
-	exec 3>&1 4>&2
-
 	local pmsg="/dev/pmsg0"
 
 	if ! [ -e "$pmsg" ]; then
@@ -28,7 +55,16 @@ setup_log() {
 	# as to the kernel ringbuffer and pstore (if available).
 	# Process substitution is technically non-POSIX, but is supported by busybox
 	# shellcheck disable=SC3001
-	exec > >(tee /pmOS_init.log "$pmsg" | logger -t "$LOG_PREFIX" -p user.info) 2>&1
+	exec > >(tee /pmOS_init.log "$pmsg" "$console" | logger -t "$LOG_PREFIX" -p user.info) 2>&1
+
+	if [ -n "$warn_null_console" ]; then
+		# Log to the display as well just to be sure.
+		echo "postmarketOS: ****************************************************"  | tee /dev/tty1
+		echo "WARNING: 'console=null' on kernel cmdline. This is NOT supported!"   | tee /dev/tty1
+		echo "WARNING: Use 'quiet' instead if you want to disable logging."        | tee /dev/tty1
+		echo "WARNING: Logging initramfs output to $console, as a fallback."       | tee /dev/tty1
+		echo "postmarketOS: ****************************************************"  | tee /dev/tty1
+	fi
 }
 
 mount_proc_sys_dev() {
@@ -718,9 +754,8 @@ start_unudhcpd() {
 		return
 	fi
 
-	local host_ip="${unudhcpd_host_ip:-172.16.42.1}"
 	local client_ip="${unudhcpd_client_ip:-172.16.42.2}"
-	echo "Starting unudhcpd with server ip $host_ip, client ip: $client_ip"
+	echo "Starting unudhcpd with server ip $HOST_IP, client ip: $client_ip"
 
 	# Get usb interface
 	usb_network_function="${deviceinfo_usb_network_function:-ncm.usb0}"
@@ -735,12 +770,12 @@ start_unudhcpd() {
 		INTERFACE=""
 	fi
 	if [ -n "$INTERFACE" ]; then
-		ifconfig "$INTERFACE" "$host_ip"
+		ifconfig "$INTERFACE" "$HOST_IP"
-	elif ifconfig rndis0 "$host_ip" 2>/dev/null; then
+	elif ifconfig rndis0 "$HOST_IP" 2>/dev/null; then
 		INTERFACE=rndis0
-	elif ifconfig usb0 "$host_ip" 2>/dev/null; then
+	elif ifconfig usb0 "$HOST_IP" 2>/dev/null; then
 		INTERFACE=usb0
-	elif ifconfig eth0 "$host_ip" 2>/dev/null; then
+	elif ifconfig eth0 "$HOST_IP" 2>/dev/null; then
 		INTERFACE=eth0
 	fi
 
@@ -754,10 +789,215 @@ start_unudhcpd() {
 	echo "  Using interface $INTERFACE"
 	echo "  Starting the DHCP daemon"
 	(
-		unudhcpd -i "$INTERFACE" -s "$host_ip" -c "$client_ip"
+		unudhcpd -i "$INTERFACE" -s "$HOST_IP" -c "$client_ip"
 	) &
 }
 
+setup_usb_acm_configfs() {
+	active_udc="$(cat $CONFIGFS/g1/UDC)"
+
+	if ! [ -e "$CONFIGFS" ]; then
+		echo "  /config/usb_gadget does not exist, can't set up serial gadget"
+		return 1
+	fi
+
+	# unset UDC
+	echo "" > /config/usb_gadget/g1/UDC
+
+	# Create acm function
+	mkdir "$CONFIGFS/g1/functions/$CONFIGFS_ACM_FUNCTION" \
+		|| echo "  Couldn't create $CONFIGFS/g1/functions/$CONFIGFS_ACM_FUNCTION"
+
+	# Link the acm function to the configuration
+	ln -s "$CONFIGFS/g1/functions/$CONFIGFS_ACM_FUNCTION" "$CONFIGFS/g1/configs/c.1" \
+		|| echo "  Couldn't symlink $CONFIGFS_ACM_FUNCTION"
+
+	return 0
+}
+
+# Spawn a subshell to restart the getty if it exits
+# $1: tty
+run_getty() {
+	{
+		# Due to how the Linux host ACM driver works, we need to wait
+		# for data to be sent from the host before spawning the getty.
+		# Otherwise our README message will be echo'd back all garbled.
+		# On Linux in particular, there is a hack we can use: by writing
+		# something to the port, it will be echo'd back at the moment the
+		# port on the host side is opened, so user input won't even be
+		# needed in most cases. For more info see the blog posts at:
+		# https://michael.stapelberg.ch/posts/2021-04-27-linux-usb-virtual-serial-cdc-acm/
+		# https://connolly.tech/posts/2024_04_15-broken-connections/
+		if [ "$1" = "ttyGS0" ]; then
+			echo " " > /dev/ttyGS0
+			# shellcheck disable=SC3061
+			read -r < /dev/ttyGS0
+		fi
+		while /sbin/getty -n -l /sbin/pmos_getty "$1" 115200 vt100; do
+			sleep 0.2
+		done
+	} &
+}
+
+debug_shell() {
+	echo "Entering debug shell"
+	# if we have a UDC it's already been configured for USB networking
+	local have_udc
+	have_udc="$(cat $CONFIGFS/g1/UDC)"
+
+	if [ -n "$have_udc" ]; then
+		setup_usb_acm_configfs
+	fi
+
+	# mount pstore, if possible
+	if [ -d /sys/fs/pstore ]; then
+		mount -t pstore pstore /sys/fs/pstore || true
+	fi
+
+	mount -t debugfs none /sys/kernel/debug || true
+	# make a symlink like Android recoveries do
+	ln -s /sys/kernel/debug /d
+
+	cat <<-EOF > /README
+	postmarketOS debug shell
+	https://postmarketos.org/debug-shell
+
+	  Device: $deviceinfo_name ($deviceinfo_codename)
+	  Kernel: $(uname -r)
+	  OS ver: $VERSION
+	  initrd: $INITRAMFS_PKG_VERSION
+
+	Run 'pmos_continue_boot' to continue booting.
+	EOF
+
+	# Add pmos_logdump message only if relevant
+	if [ -n "$have_udc" ]; then
+		echo "Run 'pmos_logdump' to generate a log dump and expose it over USB." >> /README
+	fi
+
+	if [ -n "$have_udc" ] && [ -f /usr/bin/setup_usb_storage ]; then
+		cat <<-EOF >> /README
+		You can expose storage devices over USB with
+		'setup_usb_storage /dev/DEVICE'
+		EOF
+	fi
+
+	# Display some info
+	cat <<-EOF > /etc/profile
+	cat /README
+	. /init_functions.sh
+	EOF
+
+	cat <<-EOF > /sbin/pmos_getty
+	#!/bin/sh
+	/bin/sh -l
+	EOF
+	chmod +x /sbin/pmos_getty
+
+	cat <<-EOF > /sbin/pmos_continue_boot
+	#!/bin/sh
+	echo "Continuing boot..."
+	touch /tmp/continue_boot
+	pkill -f telnetd.*:23
+	while sleep 1; do :; done
+	EOF
+	chmod +x /sbin/pmos_continue_boot
+
+	cat <<-EOF > /sbin/pmos_logdump
+	#!/bin/sh
+	echo "Dumping logs, check for a new mass storage device"
+	touch /tmp/dump_logs
+	EOF
+	chmod +x /sbin/pmos_logdump
+
+	# Get the console (ttyX) associated with /dev/console
+	local active_console
+	active_console="$(cat /sys/devices/virtual/tty/tty0/active)"
+	# Get a list of all active TTYs include serial ports
+	local serial_ports
+	serial_ports="$(cat /sys/devices/virtual/tty/console/active)"
+	# Get the getty device too (might not be active)
+	local getty
+	getty="$(echo "$deviceinfo_getty" | cut -d';' -f1)"
+
+	# Run getty's on the consoles
+	for tty in $serial_ports; do
+		# Some ports we handle explicitly below to make sure we don't
+		# accidentally spawn two getty's on them
+		if echo "tty0 tty1 ttyGS0 $getty" | grep -q "$tty" ; then
+			continue
+		fi
+		run_getty "$tty"
+	done
+
+	if [ -n "$getty" ]; then
+		run_getty "$getty"
+	fi
+
+	# Rewrite tty to tty1 if tty0 is active
+	if [ "$active_console" = "tty0" ]; then
+		active_console="tty1"
+	fi
+
+	# Getty on the display
+	hide_splash
+	run_getty "$active_console"
+
+	# And on the usb acm port (if it exists)
+	if [ -e /dev/ttyGS0 ]; then
+		run_getty ttyGS0
+	fi
+
+	# To avoid racing with the host PC opening the ACM port, we spawn
+	# the getty first. See the comment in run_getty for more details.
+	setup_usb_configfs_udc
+
+	# Spawn telnetd for those who prefer it. ACM gadget mode is not
+	# supported on some old kernels so this exists as a fallback.
+	telnetd -b "${HOST_IP}:23" -l /sbin/pmos_getty &
+
+	# wait until we get the signal to continue boot
+	while ! [ -e /tmp/continue_boot ]; do
+		sleep 0.2
+		if [ -e /tmp/dump_logs ]; then
+			rm -f /tmp/dump_logs
+			export_logs
+		fi
+	done
+
+	# Remove the ACM gadget device
+	# FIXME: would be nice to have a way to keep this on and
+	# pipe kernel/init logs to it.
+	rm -f $CONFIGFS/g1/configs/c.1/"$CONFIGFS_ACM_FUNCTION"
+	rmdir $CONFIGFS/g1/functions/"$CONFIGFS_ACM_FUNCTION"
+	setup_usb_configfs_udc
+
+	show_splash "Loading..."
+
+	pkill -f fbkeyboard || true
+}
+
+# Check if the user is pressing a key and either drop to a shell or halt boot as applicable
+check_keys() {
+	{
+		# If the user is pressing either the left control key or the volume down
+		# key then drop to a debug shell.
+		if iskey KEY_LEFTCTRL KEY_VOLUMEDOWN; then
+			debug_shell
+		# If instead they're pressing left shift or volume up, then fail boot
+		# and dump logs
+		elif iskey KEY_LEFTSHIFT KEY_VOLUMEUP; then
+			fail_halt_boot
+		fi
+
+		touch /tmp/debug_shell_exited
+	} &
+
+	while ! [ -e /tmp/debug_shell_exited ]; do
+		sleep 1
+	done
+}
+
 # $1: Message to show
 show_splash() {
 	# Skip for non-framebuffer devices
@@ -930,6 +1170,7 @@ export_logs() {
 
 fail_halt_boot() {
 	export_logs
+	debug_shell
 	echo "Looping forever"
 	while true; do
 		sleep 1

main/postmarketos-mkinitfs-hook-console-shell/APKBUILD

@@ -1,18 +1,16 @@
 # Maintainer: Ferenc Bakonyi <bakonyi.ferenc@gmail.com>
 pkgname=postmarketos-mkinitfs-hook-console-shell
-pkgver=0.3.1
+pkgver=0.4.0
 pkgrel=0
 pkgdesc="Root console shell in the initramfs (security hole, for debugging only)"
 url="https://postmarketos.org"
 depends="postmarketos-mkinitfs devicepkg-utils fbdebug evtest linuxconsoletools reboot-mode fbkeyboard font-dejavu"
-source="console-shell.sh console-shell.files console-shell.modules"
+source="console-shell.files console-shell.modules"
 arch="noarch"
 license="GPL-2.0-or-later"
 options="!check" # No tests
 
 package() {
-	install -Dm644 "$srcdir"/console-shell.sh \
-		"$pkgdir"/usr/share/mkinitfs/hooks/30-console-shell.sh
 	install -Dm644 "$srcdir"/console-shell.files \
 		"$pkgdir"/usr/share/mkinitfs/files/30-console-shell.files
 	install -Dm644 "$srcdir"/console-shell.modules \
@@ -20,7 +18,6 @@ package() {
 }
 
 sha512sums="
-0753bf2e2bb011309a906db08b5fc13dba90e55bd5d11c8da0c34c89faf04dbf5915785cc0ed2a164f2e4c5fede06c7e80b5f592f4deb306cf5cec2371ef88f9  console-shell.sh
 17b65cb24103e4c1459ae72bc036c1f06cdfcccf480389ecf6a28253d104b9b06d394cf53314a1ef4ace4ffc88b6b1384ef4894b7270d6b2cfdfc83592e12b2c  console-shell.files
 a9b069ed121ffeee887e0583d8cb46035ecf1fa90a26a4ecb3aa11ff03178b2b08621f6676db6b2350f290694c04aabcf36f2ce3e0813a76dde9a33555edb112  console-shell.modules
 "

main/postmarketos-mkinitfs-hook-console-shell/console-shell.sh

@@ -1,20 +0,0 @@
-#!/bin/sh
-# shellcheck disable=SC1091
-. ./init_functions.sh
-. /usr/share/misc/source_deviceinfo
-
-# mount pstore, if possible
-if [ -d /sys/fs/pstore ]; then
-	mount -t pstore pstore /sys/fs/pstore || true
-fi
-
-if tty -s; then
-	tty=/dev/tty0
-	modprobe uinput
-	fbkeyboard -r $(cat /sys/class/graphics/fbcon/rotate) 2>$tty &
-	echo "Exit the shell to continue booting:" > $tty
-	sh +m <$tty >$tty 2>$tty
-	pkill -f fbkeyboard
-else
-	echo "No tty attached, exiting."
-fi

main/postmarketos-mkinitfs-hook-debug-shell/20-debug-shell.sh

@@ -1,77 +0,0 @@
-#!/bin/sh
-# shellcheck disable=SC1091
-. ./init_functions.sh
-. /usr/share/misc/source_deviceinfo
-TELNET_PORT=23
-
-setup_usb_network
-start_unudhcpd
-
-show_splash "WARNING: debug-shell is active\\nhttps://postmarketos.org/debug-shell"
-
-echo "Create 'pmos_continue_boot' script"
-{
-	echo "#!/bin/sh"
-	#Disable any active usb mass storage
-	echo "if [ -d /config/usb_gadget/g1/functions/mass_storage.0 ]; then setup_usb_storage; fi"
-	echo "pkill -9 -f pmos_shell"
-	echo "pkill -f pmos_fail_halt_boot"
-} >/usr/bin/pmos_continue_boot
-chmod +x /usr/bin/pmos_continue_boot
-
-echo "Create 'pmos_shell' script"
-{
-	echo "#!/bin/sh"
-	echo "sh"
-} >/usr/bin/pmos_shell
-chmod +x /usr/bin/pmos_shell
-
-echo "Create 'pmos_fail_halt_boot' script"
-{
-	echo "#!/bin/sh"
-	echo '. /init_functions.sh'
-	echo "fail_halt_boot"
-} >/usr/bin/pmos_fail_halt_boot
-chmod +x /usr/bin/pmos_fail_halt_boot
-
-echo "Create debug-shell cleanup script"
-{
-	echo "#!/bin/sh"
-	# shellcheck disable=SC2016
-	echo 'kill `cat /run/debug-shell-telnet.pid`'
-} > /hooks-cleanup/debug-shell-cleanup.sh
-chmod +x /hooks-cleanup/debug-shell-cleanup.sh
-
-echo "Start the telnet daemon"
-{
-	echo "#!/bin/sh"
-	echo "echo \"Type 'pmos_continue_boot' to continue booting:\""
-	echo "sh"
-} >/telnet_connect.sh
-chmod +x /telnet_connect.sh
-
-host_ip="${unudhcpd_host_ip:-172.16.42.1}"
-# Run telnetd with -F (foreground) instead of as a daemon so we can get it's PID
-telnetd -F -b "${host_ip}:${TELNET_PORT}" -l /telnet_connect.sh &
-echo "$!" > /run/debug-shell-telnet.pid
-
-# mount pstore, if possible
-if [ -d /sys/fs/pstore ]; then
-	mount -t pstore pstore /sys/fs/pstore || true
-fi
-# mount debugfs - very helpful for debugging
-mount -t debugfs none /sys/kernel/debug || true
-# make a symlink like Android recoveries do
-ln -s /sys/kernel/debug /d
-
-echo "---"
-echo "WARNING: debug-shell is active on ${host_ip}:${TELNET_PORT}."
-echo "This is a security hole! Only use it for debugging, and"
-echo "uninstall the debug-shell hook afterwards!"
-echo "You can expose storage devices using 'setup_usb_storage /dev/DEVICE'"
-echo "---"
-
-pmos_shell
-
-# Show "Loading" splash again when continuing
-show_splash "Loading..."

main/postmarketos-mkinitfs-hook-debug-shell/APKBUILD

@@ -1,17 +1,15 @@
 pkgname=postmarketos-mkinitfs-hook-debug-shell
-pkgver=0.6.1
+pkgver=0.7.0
 pkgrel=0
 pkgdesc="Root shell in the initramfs (security hole, for debugging only)"
 url="https://postmarketos.org"
 depends="postmarketos-mkinitfs devicepkg-utils fbdebug evtest linuxconsoletools reboot-mode libinput libinput-tools"
-source="20-debug-shell.sh 20-debug-shell.files setup_usb_storage.sh"
+source="20-debug-shell.files setup_usb_storage.sh"
 arch="noarch"
 license="GPL2"
 options="!check"
 
 package() {
-	install -Dm644 "$srcdir"/20-debug-shell.sh \
-		"$pkgdir"/usr/share/mkinitfs/hooks/20-debug-shell.sh
 	install -Dm644 "$srcdir"/20-debug-shell.files \
 		"$pkgdir"/usr/share/mkinitfs/files/20-debug-shell.files
 	install -Dm755 "$srcdir"/setup_usb_storage.sh \
@@ -19,7 +17,6 @@ package() {
 }
 
 sha512sums="
-46c7a77cc07e3f2acb733583a2710ea50366308c1018ead3081f910a243381a52eb2e584f7b11eb159b7fb16891b6d9acf2ffe3ace1588fcce9aad617787f675  20-debug-shell.sh
 a739bc47d905d189edb26d9ebfd062023720fefdaab27207471c16d53a9c12ea8b81092a1047d8f2300e42ba500bdf6c5a3343aca55aab5bf8e84d68eb5680ab  20-debug-shell.files
 75d485c2e9f352cfd717b7a92753a9dfc4a72526a44bcbb784eacb4ef9011072b3ffa1c42a317c0940598cc076fb6c61676c440e5b188378b19ca08d882c1338  setup_usb_storage.sh
 "