pmaports/main/postmarketos-mkinitfs/init_functions.sh
Marti Raudsepp ce5a83b978 Add initramfs error message when charging-sdl fails to run
There are devices where charging-sdl/directfb fails (osk-sdl#77).

It's nicer to give an error message than display "Loading..." forever.
2018-08-14 02:02:13 +00:00

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9.1 KiB
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#!/bin/sh
# This file will be in /init_functions.sh inside the initramfs.
IP=172.16.42.1
# Redirect stdout and stderr to logfile
setup_log() {
# Bail out if PMOS_NO_OUTPUT_REDIRECT is set
echo "### postmarketOS initramfs ###"
grep -q PMOS_NO_OUTPUT_REDIRECT /proc/cmdline && return
# Print a message about what is going on to the normal output
echo "NOTE: All output from the initramfs gets redirected to:"
echo "/pmOS_init.log"
echo "If you want to disable this behavior (e.g. because you're"
echo "debugging over serial), please add this to your kernel"
echo "command line: PMOS_NO_OUTPUT_REDIRECT"
# Start redirect, print the first line again
exec >/pmOS_init.log 2>&1
echo "### postmarketOS initramfs ###"
}
mount_proc_sys_dev() {
# mdev
mount -t proc -o nodev,noexec,nosuid proc /proc
mount -t sysfs -o nodev,noexec,nosuid sysfs /sys
mkdir /config
mount -t configfs -o nodev,noexec,nosuid configfs /config
# /dev/pts (needed for telnet)
mkdir -p /dev/pts
mount -t devpts devpts /dev/pts
}
setup_mdev() {
echo /sbin/mdev >/proc/sys/kernel/hotplug
mdev -s
}
mount_subpartitions() {
# Do not create subpartition mappings if pmOS_boot
# already exists (e.g. installed on an sdcard)
blkid |grep -q "pmOS_boot" && return
for i in /dev/mmcblk*; do
case "$(kpartx -l "$i" 2>/dev/null | wc -l)" in
2)
echo "Mount subpartitions of $i"
kpartx -afs "$i"
# Ensure that this was the *correct* subpartition
# Some devices have mmc partitions that appear to have
# subpartitions, but aren't our subpartition.
if blkid | grep -q "pmOS_boot"; then
break
fi
kpartx -d "$i"
continue
;;
*)
continue
;;
esac
done
}
find_root_partition() {
# The partition layout is one of the following:
# a) boot, root partitions on sdcard
# b) boot, root partition on the "system" partition (which has its
# own partition header! so we have partitions on partitions!)
#
# mount_subpartitions() must get executed before calling
# find_root_partition(), so partitions from b) also get found.
# Try partitions in /dev/mapper and /dev/dm-* first
for id in pmOS_root crypto_LUKS; do
for path in /dev/mapper /dev/dm; do
DEVICE="$(blkid | grep "$path" | grep "$id" \
| cut -d ":" -f 1)"
[ -z "$DEVICE" ] || break 2
done
done
# Then try all devices
if [ -z "$DEVICE" ]; then
for id in pmOS_root crypto_LUKS; do
DEVICE="$(blkid | grep "$id" | cut -d ":" -f 1)"
[ -z "$DEVICE" ] || break
done
fi
echo "$DEVICE"
}
find_boot_partition() {
findfs LABEL="pmOS_boot"
}
mount_boot_partition() {
partition=$(find_boot_partition)
if [ -z "$partition" ]; then
echo "ERROR: boot partition not found!"
show_splash /splash-noboot.ppm.gz
loop_forever
fi
echo "Mount boot partition ($partition)"
mount -r "$partition" /boot
}
# $1: initramfs-extra path
extract_initramfs_extra() {
initramfs_extra="$1"
if [ ! -e "$initramfs_extra" ]; then
echo "ERROR: initramfs-extra not found!"
show_splash /splash-noinitramfsextra.ppm.gz
loop_forever
fi
echo "Extract $initramfs_extra"
gzip -d -c "$initramfs_extra" | cpio -i
}
wait_root_partition() {
while [ -z "$(find_root_partition)" ]; do
show_splash /splash-norootfs.ppm.gz
echo "Could not find the rootfs."
echo "Maybe you need to insert the sdcard, if your device has"
echo "any? Trying again in one second..."
sleep 1
done
}
resize_root_partition() {
partition=$(find_root_partition)
# Only resize the partition if it's inside the device-mapper, which means
# that the partition is stored as a subpartition inside another one.
# In this case we want to resize it to use all the unused space of the
# external partition.
if [ -z "${partition##"/dev/mapper/"*}" ]; then
# Get physical device
partition_dev=$(dmsetup deps -o devname "$partition" | \
awk -F "[()]" '{print "/dev/"$2}')
# Check if there is unallocated space at the end of the device
if parted -s "$partition_dev" print free | tail -n2 | \
head -n1 | grep -qi "free space"; then
echo "Resize root partition ($partition)"
# unmount subpartition, resize and remount it
kpartx -d "$partition"
parted -s "$partition_dev" resizepart 2 100%
kpartx -afs "$partition_dev"
fi
fi
# Resize the root partition (non-subpartitions). Usually we do not want this,
# except for QEMU devices (where PMOS_FORCE_PARTITION_RESIZE gets passed as
# kernel parameter).
if grep -q PMOS_FORCE_PARTITION_RESIZE /proc/cmdline; then
echo "Resize root partition ($partition)"
parted -s "$(echo "$partition" | sed -E 's/p?2$//')" resizepart 2 100%
partprobe
fi
}
unlock_root_partition() {
partition="$(find_root_partition)"
if cryptsetup isLuks "$partition"; then
until cryptsetup status root | grep -qwi active; do
start_onscreen_keyboard
done
# Show again the loading splashscreen
show_splash /splash-loading.ppm.gz
fi
}
resize_root_filesystem() {
partition="$(find_root_partition)"
touch /etc/mtab # see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673323
echo "Check/repair root filesystem ($partition)"
e2fsck -f -y "$partition"
echo "Resize root filesystem ($partition)"
resize2fs -f "$partition"
}
mount_root_partition() {
partition="$(find_root_partition)"
echo "Mount root partition ($partition)"
mount -t ext4 -o ro "$partition" /sysroot
if ! [ -e /sysroot/usr ]; then
echo "ERROR: unable to mount root partition!"
show_splash /splash-mounterror.ppm.gz
loop_forever
fi
}
setup_usb_network_android() {
# Only run, when we have the android usb driver
SYS=/sys/class/android_usb/android0
[ -e "$SYS" ] || return
# Do the setup
printf "%s" "0" >"$SYS/enable"
printf "%s" "18D1" >"$SYS/idVendor"
printf "%s" "D001" >"$SYS/idProduct"
printf "%s" "rndis" >"$SYS/functions"
printf "%s" "1" >"$SYS/enable"
}
setup_usb_network_configfs() {
CONFIGFS=/config/usb_gadget
[ -e "$CONFIGFS" ] || return
mkdir $CONFIGFS/g1
printf "%s" "18D1" >"$CONFIGFS/g1/idVendor"
printf "%s" "D001" >"$CONFIGFS/g1/idProduct"
mkdir $CONFIGFS/g1/strings/0x409
mkdir $CONFIGFS/g1/functions/rndis.usb0
mkdir $CONFIGFS/g1/configs/c.1
mkdir $CONFIGFS/g1/configs/c.1/strings/0x409
printf "%s" "rndis" > $CONFIGFS/g1/configs/c.1/strings/0x409/configuration
ln -s $CONFIGFS/g1/functions/rndis.usb0 $CONFIGFS/g1/configs/c.1
# See also: #338
# shellcheck disable=SC2005
echo "$(ls /sys/class/udc)" > $CONFIGFS/g1/UDC
}
setup_usb_network() {
# Only run once
_marker="/tmp/_setup_usb_network"
[ -e "$_marker" ] && return
touch "$_marker"
echo "Setup usb network"
# Run all usb network setup functions (add more below!)
setup_usb_network_android
setup_usb_network_configfs
}
start_udhcpd() {
# Only run once
[ -e /etc/udhcpd.conf ] && return
# Skip if disabled
# shellcheck disable=SC2154
if [ "$deviceinfo_disable_dhcpd" = "true" ]; then
echo "NOTE: start of dhcpd is disabled (deviceinfo_disable_dhcpd)"
touch /etc/udhcpcd.conf
return
fi
# Get usb interface
INTERFACE=""
ifconfig rndis0 "$IP" && INTERFACE=rndis0
if [ -z $INTERFACE ]; then
ifconfig usb0 "$IP" && INTERFACE=usb0
fi
if [ -z $INTERFACE ]; then
ifconfig eth0 "$IP" && INTERFACE=eth0
fi
# Create /etc/udhcpd.conf
{
echo "start 172.16.42.2"
echo "end 172.16.42.2"
echo "auto_time 0"
echo "decline_time 0"
echo "conflict_time 0"
echo "lease_file /var/udhcpd.leases"
echo "interface $INTERFACE"
echo "option subnet 255.255.255.0"
} >/etc/udhcpd.conf
echo "Start the dhcpcd daemon (forks into background)"
udhcpd
}
setup_directfb_tslib(){
# Set up directfb and tslib
# Note: linux_input module is disabled since it will try to take over
# the touchscreen device from tslib (e.g. on the N900)
export DFBARGS="system=fbdev,no-cursor,disable-module=linux_input"
# shellcheck disable=SC2154
if [ ! -z "$deviceinfo_dev_touchscreen" ]; then
export TSLIB_TSDEVICE="$deviceinfo_dev_touchscreen"
fi
}
start_onscreen_keyboard(){
setup_directfb_tslib
osk-sdl -n root -d "$partition" -c /etc/osk.conf -v > /osk-sdl.log 2>&1
unset DFBARGS
unset TSLIB_TSDEVICE
}
start_charging_mode(){
# Check cmdline for charging mode
chargingmodes="
androidboot.mode=charger
lpm_boot=1
androidboot.huawei_type=oem_rtc
startup=0x00010004
lpcharge=1
androidboot.bootchg=true
"
# shellcheck disable=SC2086
grep -Eq "$(echo $chargingmodes | tr ' ' '|')" /proc/cmdline || return
setup_directfb_tslib
# Get the font from osk-sdl config
fontpath=$(awk '/^keyboard-font/{print $3}' /etc/osk.conf)
# Set up triggerhappy config
{
echo "KEY_POWER 1 pgrep -x charging-sdl || charging-sdl -pcf $fontpath"
} >/etc/triggerhappy.conf
# Start it once and then start triggerhappy
(
charging-sdl -pcf "$fontpath" \
|| show_splash /splash-charging-error.ppm.gz
) &
thd --deviceglob /dev/input/event* --triggers /etc/triggerhappy.conf
}
# $1: path to ppm.gz file
show_splash() {
gzip -c -d "$1" >/tmp/splash.ppm
fbsplash -s /tmp/splash.ppm
}
set_framebuffer_mode() {
[ -e "/sys/class/graphics/fb0/modes" ] || return
[ -z "$(cat /sys/class/graphics/fb0/mode)" ] || return
_mode="$(cat /sys/class/graphics/fb0/modes)"
echo "Setting framebuffer mode to: $_mode"
echo "$_mode" > /sys/class/graphics/fb0/mode
}
loop_forever() {
while true; do
sleep 1
done
}