680 lines
20 KiB
Bash
680 lines
20 KiB
Bash
#!/bin/sh
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# This file will be in /init_functions.sh inside the initramfs.
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IP=172.16.42.1
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ROOT_PARTITION_UNLOCKED=0
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ROOT_PARTITION_RESIZED=0
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# Redirect stdout and stderr to logfile
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setup_log() {
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# Bail out if PMOS_NO_OUTPUT_REDIRECT is set
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echo "### postmarketOS initramfs ###"
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grep -q PMOS_NO_OUTPUT_REDIRECT /proc/cmdline && return
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# Print a message about what is going on to the normal output
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echo "NOTE: All output from the initramfs gets redirected to:"
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echo "/pmOS_init.log"
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echo "If you want to disable this behavior (e.g. because you're"
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echo "debugging over serial), please add this to your kernel"
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echo "command line: PMOS_NO_OUTPUT_REDIRECT"
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# Start redirect, print the first line again
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exec >/pmOS_init.log 2>&1
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echo "### postmarketOS initramfs ###"
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}
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mount_proc_sys_dev() {
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# mdev
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mount -t proc -o nodev,noexec,nosuid proc /proc || echo "Couldn't mount /proc"
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mount -t sysfs -o nodev,noexec,nosuid sysfs /sys || echo "Couldn't mount /sys"
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mkdir /config
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mount -t configfs -o nodev,noexec,nosuid configfs /config
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# /dev/pts (needed for telnet)
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mkdir -p /dev/pts
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mount -t devpts devpts /dev/pts
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# /run (needed for cryptsetup)
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mkdir /run
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}
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create_device_nodes() {
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mknod -m 666 /dev/null c 1 3
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mknod -m 644 /dev/random c 1 8
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mknod -m 644 /dev/urandom c 1 9
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}
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setup_firmware_path() {
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# Add the postmarketOS-specific path to the firmware search paths.
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# This should be sufficient on kernel 3.10+, before that we need
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# the kernel calling udev (and in our case /usr/lib/firmwareload.sh)
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# to load the firmware for the kernel.
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echo "Configuring kernel firmware image search path"
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SYS=/sys/module/firmware_class/parameters/path
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if ! [ -e "$SYS" ]; then
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echo "Kernel does not support setting the firmware image search path. Skipping."
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return
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fi
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# shellcheck disable=SC3037
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echo -n /lib/firmware/postmarketos >$SYS
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}
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setup_mdev() {
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echo /sbin/mdev >/proc/sys/kernel/hotplug
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mdev -s
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# If udevd and udevadm are present in the initfs, coldplug all devices so that
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# they can be used via libinput (e.g. by unl0kr). This is the same series of steps
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# performed by the udev, udev-trigger and udev-settle RC services. See also:
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# - https://git.alpinelinux.org/aports/tree/main/eudev/setup-udev
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# - https://git.alpinelinux.org/aports/tree/main/udev-init-scripts/APKBUILD
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if command -v udevd > /dev/null && command -v udevadm > /dev/null; then
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udevd -d
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udevadm trigger --type=devices --action=add
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udevadm settle
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fi
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}
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get_uptime_seconds() {
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# Get the current system uptime in seconds - ignore the two decimal places.
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awk -F '.' '{print $1}' /proc/uptime
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}
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setup_dynamic_partitions() {
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command -v make-dynpart-mappings > /dev/null || return
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attempt_start=$(get_uptime_seconds)
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wait_seconds=10
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slot_number=0
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for super_partition in $1; do
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# Wait for mdev
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echo "Waiting for super partition $super_partition..."
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while [ ! -b "$super_partition" ]; do
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if [ "$(get_uptime_seconds)" -ge $(( attempt_start + wait_seconds )) ]; then
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echo "ERROR: Super partition $super_partition failed to show up!"
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return;
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fi
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sleep 0.1
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done
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make-dynpart-mappings "$super_partition" "$slot_number"
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slot_number=$(( slot_number + 1 ))
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done
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}
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mount_subpartitions() {
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# Do not create subpartition mappings if pmOS_boot
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# already exists (e.g. installed on an sdcard)
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[ -n "$(find_boot_partition)" ] && return
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attempt_start=$(get_uptime_seconds)
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wait_seconds=10
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echo "Trying to mount subpartitions for $wait_seconds seconds..."
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while [ -z "$(find_boot_partition)" ]; do
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partitions="$(grep -v "loop\|ram" < /proc/diskstats |\
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sed 's/\(\s\+[0-9]\+\)\+\s\+//;s/ .*//;s/^/\/dev\//')"
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echo "$partitions" | while read -r partition; do
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case "$(kpartx -l "$partition" 2>/dev/null | wc -l)" in
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2)
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echo "Mount subpartitions of $partition"
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kpartx -afs "$partition"
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# Ensure that this was the *correct* subpartition
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# Some devices have mmc partitions that appear to have
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# subpartitions, but aren't our subpartition.
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if [ -n "$(find_boot_partition)" ]; then
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break
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fi
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kpartx -d "$partition"
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continue
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;;
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*)
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continue
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;;
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esac
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done
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if [ "$(get_uptime_seconds)" -ge $(( attempt_start + wait_seconds )) ]; then
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echo "ERROR: failed to mount subpartitions!"
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return;
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fi
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sleep 0.1;
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done
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}
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find_root_partition() {
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# The partition layout is one of the following:
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# a) boot, root partitions on sdcard
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# b) boot, root partition on the "system" partition (which has its
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# own partition header! so we have partitions on partitions!)
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#
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# mount_subpartitions() must get executed before calling
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# find_root_partition(), so partitions from b) also get found.
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# Short circuit all autodetection logic if pmos_root= or
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# pmos_root_uuid= is supplied on the kernel cmdline
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# shellcheck disable=SC2013
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if [ "$ROOT_PARTITION_UNLOCKED" = 0 ]; then
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for x in $(cat /proc/cmdline); do
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[ "$x" = "${x#pmos_root_uuid=}" ] && continue
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DEVICE="$(findfs UUID="${x#pmos_root_uuid=}")"
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done
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for x in $(cat /proc/cmdline); do
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[ "$x" = "${x#pmos_root=}" ] && continue
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DEVICE="${x#pmos_root=}"
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done
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# On-device installer: before postmarketOS is installed,
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# we want to use the installer partition as root. It is the
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# partition behind pmos_root. pmos_root will either point to
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# reserved space, or to an unfinished installation.
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# p1: boot
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# p2: (reserved space) <--- pmos_root
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# p3: pmOS_install
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# Details: https://postmarketos.org/on-device-installer
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if [ -n "$DEVICE" ]; then
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next="$(echo "$DEVICE" | sed 's/2$/3/')"
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# If the next partition is labeled pmOS_install (and
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# not pmOS_deleteme), then postmarketOS is not
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# installed yet.
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if blkid | grep "$next" | grep -q pmOS_install; then
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DEVICE="$next"
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fi
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fi
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fi
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# Try partitions in /dev/mapper and /dev/dm-* first
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if [ -z "$DEVICE" ]; then
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for id in pmOS_install pmOS_root crypto_LUKS; do
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for path in /dev/mapper /dev/dm; do
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DEVICE="$(blkid | grep "$path" | grep "$id" \
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| cut -d ":" -f 1 | head -n 1)"
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[ -z "$DEVICE" ] || break 2
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done
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done
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fi
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# Then try all devices
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if [ -z "$DEVICE" ]; then
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for id in pmOS_install pmOS_root crypto_LUKS; do
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DEVICE="$(blkid | grep "$id" | cut -d ":" -f 1 \
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| head -n 1)"
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[ -z "$DEVICE" ] || break
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done
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fi
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echo "$DEVICE"
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}
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find_boot_partition() {
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# shellcheck disable=SC2013
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for x in $(cat /proc/cmdline); do
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[ "$x" = "${x#pmos_boot_uuid=}" ] && continue
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findfs UUID="${x#pmos_boot_uuid=}"
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return
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done
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# shellcheck disable=SC2013
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for x in $(cat /proc/cmdline); do
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[ "$x" = "${x#pmos_boot=}" ] && continue
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echo "${x#pmos_boot=}"
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return
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done
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# * "pmOS_i_boot" installer boot partition (fits 11 chars for fat32)
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# * "pmOS_inst_boot" old installer boot partition (backwards compat)
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# * "pmOS_boot" boot partition after installation
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findfs LABEL="pmOS_i_boot" \
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|| findfs LABEL="pmOS_inst_boot" \
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|| findfs LABEL="pmOS_boot"
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}
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get_partition_type() {
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partition="$1"
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blkid "$partition" | sed 's/^.*TYPE="\([a-zA-z0-9_]*\)".*$/\1/'
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}
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# $1: path
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# $2: set to "rw" for read-write
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# Mount the boot partition. It gets mounted twice, first at /boot (ro), then at
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# /sysroot/boot (rw), after root has been mounted at /sysroot, so we can
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# switch_root to /sysroot and have the boot partition properly mounted.
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mount_boot_partition() {
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partition=$(find_boot_partition)
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if [ -z "$partition" ]; then
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echo "ERROR: boot partition not found!"
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show_splash /splash-noboot.ppm.gz
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loop_forever
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fi
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if [ "$2" = "rw" ]; then
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mount_opts=""
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echo "Mount boot partition ($partition) to $1 (read-write)"
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else
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mount_opts="-o ro"
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echo "Mount boot partition ($partition) to $1 (read-only)"
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fi
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type="$(get_partition_type "$partition")"
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case "$type" in
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ext*)
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echo "Detected ext filesystem"
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modprobe ext4
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# ext2 might be handled by the ext2 or ext4 kernel module
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# so let mount detect that automatically by omitting -t
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;;
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vfat)
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echo "Detected vfat filesystem"
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modprobe vfat
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mount_opts="-t vfat $mount_opts"
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;;
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*) echo "WARNING: Detected unsupported '$type' filesystem ($partition)." ;;
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esac
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# shellcheck disable=SC2086
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mount $mount_opts "$partition" "$1"
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}
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# $1: initramfs-extra path
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extract_initramfs_extra() {
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initramfs_extra="$1"
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if [ ! -e "$initramfs_extra" ]; then
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echo "ERROR: initramfs-extra not found!"
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show_splash /splash-noinitramfsextra.ppm.gz
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loop_forever
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fi
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echo "Extract $initramfs_extra"
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gzip -d -c "$initramfs_extra" | cpio -i
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}
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wait_root_partition() {
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while [ -z "$(find_root_partition)" ]; do
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show_splash /splash-norootfs.ppm.gz
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echo "Could not find the rootfs."
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echo "Maybe you need to insert the sdcard, if your device has"
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echo "any? Trying again in one second..."
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sleep 1
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done
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}
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delete_old_install_partition() {
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# The on-device installer leaves a "pmOS_deleteme" (p3) partition after
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# successful installation, located after "pmOS_root" (p2). Delete it,
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# so we can use the space.
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partition="$(find_root_partition | sed 's/2$/3/')"
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if ! blkid "$partition" | grep -q pmOS_deleteme; then
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return
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fi
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device="$(echo "$partition" | sed -E 's/p?3$//')"
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echo "First boot after running on-device installer - deleting old" \
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"install partition: $partition"
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parted -s "$device" rm 3
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}
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# $1: path to device
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has_unallocated_space() {
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# Check if there is unallocated space at the end of the device
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parted -s "$1" print free | tail -n2 | \
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head -n1 | grep -qi "free space"
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}
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resize_root_partition() {
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partition=$(find_root_partition)
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# Do not resize the installer partition
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if blkid "$partition" | grep -q pmOS_install; then
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echo "Resize root partition: skipped (on-device installer)"
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return
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fi
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# Only resize the partition if it's inside the device-mapper, which means
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# that the partition is stored as a subpartition inside another one.
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# In this case we want to resize it to use all the unused space of the
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# external partition.
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if [ -z "${partition##"/dev/mapper/"*}" ]; then
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# Get physical device
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partition_dev=$(dmsetup deps -o blkdevname "$partition" | \
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awk -F "[()]" '{print "/dev/"$2}')
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if has_unallocated_space "$partition_dev"; then
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echo "Resize root partition ($partition)"
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# unmount subpartition, resize and remount it
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kpartx -d "$partition"
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parted -f -s "$partition_dev" resizepart 2 100%
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kpartx -afs "$partition_dev"
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ROOT_PARTITION_RESIZED=1
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fi
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fi
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# Resize the root partition (non-subpartitions). Usually we do not want
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# this, except for QEMU devices and non-android devices (e.g.
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# PinePhone). For them, it is fine to use the whole storage device and
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# so we pass PMOS_FORCE_PARTITION_RESIZE as kernel parameter.
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if grep -q PMOS_FORCE_PARTITION_RESIZE /proc/cmdline; then
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partition_dev="$(echo "$partition" | sed -E 's/p?2$//')"
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if has_unallocated_space "$partition_dev"; then
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echo "Resize root partition ($partition)"
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parted -f -s "$partition_dev" resizepart 2 100%
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partprobe
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ROOT_PARTITION_RESIZED=1
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fi
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fi
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}
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unlock_root_partition() {
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partition="$(find_root_partition)"
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if cryptsetup isLuks "$partition"; then
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tried=0
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until cryptsetup status root | grep -qwi active; do
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fde-unlock "$partition" "$tried"
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tried=$((tried + 1))
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done
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ROOT_PARTITION_UNLOCKED=1
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# Show again the loading splashscreen
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show_splash_loading
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fi
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}
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resize_root_filesystem() {
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if [ "$ROOT_PARTITION_RESIZED" = 1 ]; then
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show_splash /splash-resizefs.ppm.gz
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partition="$(find_root_partition)"
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touch /etc/mtab # see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673323
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type="$(get_partition_type "$partition")"
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case "$type" in
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ext4)
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echo "Resize 'ext4' root filesystem ($partition)"
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modprobe ext4
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resize2fs -f "$partition"
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;;
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f2fs)
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echo "Resize 'f2fs' root filesystem ($partition)"
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modprobe f2fs
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resize.f2fs "$partition"
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;;
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btrfs)
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echo "Resize 'btrfs' root filesystem ($partition)"
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modprobe btrfs
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resize_root_filesystem_tmp_btrfs="$(mktemp -d)"
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mount -t btrfs "$partition" "$resize_root_filesystem_tmp_btrfs"
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btrfs filesystem resize max "$resize_root_filesystem_tmp_btrfs"
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umount "$resize_root_filesystem_tmp_btrfs"
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unset resize_root_filesystem_tmp_btrfs
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;;
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*) echo "WARNING: Can not resize '$type' filesystem ($partition)." ;;
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esac
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show_splash_loading
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fi
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}
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mount_root_partition() {
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partition="$(find_root_partition)"
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echo "Mount root partition ($partition) to /sysroot (read-only)"
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type="$(get_partition_type "$partition")"
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case "$type" in
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ext4)
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echo "Detected ext4 filesystem"
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modprobe ext4
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mount -t ext4 -o ro "$partition" /sysroot
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;;
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f2fs)
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echo "Detected f2fs filesystem"
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modprobe f2fs
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mount -t f2fs -o ro "$partition" /sysroot
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;;
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btrfs)
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echo "Detected btrfs filesystem"
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modprobe btrfs
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mount -t btrfs -o ro "$partition" /sysroot
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;;
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*) echo "WARNING: Detected unsupported '$type' filesystem ($partition)." ;;
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esac
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if ! [ -e /sysroot/usr ]; then
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echo "ERROR: unable to mount root partition!"
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show_splash /splash-mounterror.ppm.gz
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loop_forever
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fi
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}
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setup_usb_network_android() {
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# Only run, when we have the android usb driver
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SYS=/sys/class/android_usb/android0
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if ! [ -e "$SYS" ]; then
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echo " /sys/class/android_usb does not exist, skipping android_usb"
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return
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fi
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echo " Setting up an USB gadget through android_usb"
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usb_idVendor="$(echo "${deviceinfo_usb_idVendor:-0x18D1}" | sed "s/0x//g")" # default: Google Inc.
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usb_idProduct="$(echo "${deviceinfo_usb_idProduct:-0xD001}" | sed "s/0x//g")" # default: Nexus 4 (fastboot)
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# Do the setup
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echo "0" >"$SYS/enable"
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echo "$usb_idVendor" >"$SYS/idVendor"
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echo "$usb_idProduct" >"$SYS/idProduct"
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echo "rndis" >"$SYS/functions"
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echo "1" >"$SYS/enable"
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}
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setup_usb_network_configfs() {
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# See: https://www.kernel.org/doc/Documentation/usb/gadget_configfs.txt
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CONFIGFS=/config/usb_gadget
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if ! [ -e "$CONFIGFS" ]; then
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echo " /config/usb_gadget does not exist, skipping configfs usb gadget"
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return
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fi
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# Default values for USB-related deviceinfo variables
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usb_idVendor="${deviceinfo_usb_idVendor:-0x18D1}" # default: Google Inc.
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usb_idProduct="${deviceinfo_usb_idProduct:-0xD001}" # default: Nexus 4 (fastboot)
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usb_serialnumber="${deviceinfo_usb_serialnumber:-postmarketOS}"
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usb_rndis_function="${deviceinfo_usb_rndis_function:-rndis.usb0}"
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echo " Setting up an USB gadget through configfs"
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# Create an usb gadet configuration
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mkdir $CONFIGFS/g1 || echo " Couldn't create $CONFIGFS/g1"
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echo "$usb_idVendor" > "$CONFIGFS/g1/idVendor"
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echo "$usb_idProduct" > "$CONFIGFS/g1/idProduct"
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# Create english (0x409) strings
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mkdir $CONFIGFS/g1/strings/0x409 || echo " Couldn't create $CONFIGFS/g1/strings/0x409"
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# shellcheck disable=SC2154
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echo "$deviceinfo_manufacturer" > "$CONFIGFS/g1/strings/0x409/manufacturer"
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echo "$usb_serialnumber" > "$CONFIGFS/g1/strings/0x409/serialnumber"
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# shellcheck disable=SC2154
|
|
echo "$deviceinfo_name" > "$CONFIGFS/g1/strings/0x409/product"
|
|
|
|
# Create rndis function. The function can be named differently in downstream kernels.
|
|
mkdir $CONFIGFS/g1/functions/"$usb_rndis_function" \
|
|
|| echo " Couldn't create $CONFIGFS/g1/functions/$usb_rndis_function"
|
|
|
|
# Create configuration instance for the gadget
|
|
mkdir $CONFIGFS/g1/configs/c.1 \
|
|
|| echo " Couldn't create $CONFIGFS/g1/configs/c.1"
|
|
mkdir $CONFIGFS/g1/configs/c.1/strings/0x409 \
|
|
|| echo " Couldn't create $CONFIGFS/g1/configs/c.1/strings/0x409"
|
|
echo "rndis" > $CONFIGFS/g1/configs/c.1/strings/0x409/configuration \
|
|
|| echo " Couldn't write configration name"
|
|
|
|
# Link the rndis instance to the configuration
|
|
ln -s $CONFIGFS/g1/functions/"$usb_rndis_function" $CONFIGFS/g1/configs/c.1 \
|
|
|| echo " Couldn't symlink $usb_rndis_function"
|
|
|
|
# Check if there's an USB Device Controller
|
|
if [ -z "$(ls /sys/class/udc)" ]; then
|
|
echo " No USB Device Controller available"
|
|
return
|
|
fi
|
|
|
|
# Link the gadget instance to an USB Device Controller. This activates the gadget.
|
|
# See also: https://github.com/postmarketOS/pmbootstrap/issues/338
|
|
# shellcheck disable=SC2005
|
|
echo "$(ls /sys/class/udc)" > $CONFIGFS/g1/UDC || echo " Couldn't write UDC"
|
|
}
|
|
|
|
setup_usb_network() {
|
|
# Only run once
|
|
_marker="/tmp/_setup_usb_network"
|
|
[ -e "$_marker" ] && return
|
|
touch "$_marker"
|
|
echo "Setup usb network"
|
|
# Run all usb network setup functions (add more below!)
|
|
setup_usb_network_android
|
|
setup_usb_network_configfs
|
|
}
|
|
|
|
start_unudhcpd() {
|
|
# Only run once
|
|
[ "$(pidof unudhcpd)" ] && return
|
|
|
|
# Skip if disabled
|
|
# shellcheck disable=SC2154
|
|
if [ "$deviceinfo_disable_dhcpd" = "true" ]; then
|
|
echo "NOTE: start of dhcpd is disabled (deviceinfo_disable_dhcpd)"
|
|
return
|
|
fi
|
|
|
|
echo "Starting unudhcpd"
|
|
# Get usb interface
|
|
INTERFACE=""
|
|
ifconfig rndis0 "$IP" 2>/dev/null && INTERFACE=rndis0
|
|
if [ -z $INTERFACE ]; then
|
|
ifconfig usb0 "$IP" 2>/dev/null && INTERFACE=usb0
|
|
fi
|
|
if [ -z $INTERFACE ]; then
|
|
ifconfig eth0 "$IP" 2>/dev/null && INTERFACE=eth0
|
|
fi
|
|
|
|
if [ -z $INTERFACE ]; then
|
|
echo " Could not find an interface to run a dhcp server on"
|
|
echo " Interfaces:"
|
|
ip link
|
|
return
|
|
fi
|
|
|
|
echo " Using interface $INTERFACE"
|
|
echo " Starting the DHCP daemon"
|
|
(
|
|
unudhcpd -i "$INTERFACE" -s 172.16.42.1 -c 172.16.42.2
|
|
) &
|
|
}
|
|
|
|
start_charging_mode() {
|
|
# NOTE: To reenable charging-sdl, revert the whole commit,
|
|
# including the APKBUILD and mkinitfs changes!
|
|
# Check cmdline for charging mode
|
|
chargingmodes="
|
|
androidboot.mode=charger
|
|
lpm_boot=1
|
|
androidboot.huawei_type=oem_rtc
|
|
startup=0x00010004
|
|
lpcharge=1
|
|
androidboot.bootchg=true
|
|
"
|
|
|
|
# Support devices using KMS
|
|
# shellcheck disable=SC2154
|
|
if [ -n "$deviceinfo_mesa_driver" ]; then
|
|
export SDL_VIDEODRIVER="kmsdrm"
|
|
fi
|
|
|
|
# shellcheck disable=SC2086
|
|
grep -Eq "$(echo $chargingmodes | tr ' ' '|')" /proc/cmdline || return
|
|
setup_directfb_tslib
|
|
# Get the font from osk-sdl config
|
|
fontpath=$(awk '/^keyboard-font\s=/{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
|
|
}
|
|
|
|
# $1: path to ppm.gz file
|
|
show_splash() {
|
|
# Skip for non-framebuffer devices
|
|
# shellcheck disable=SC2154
|
|
if [ "$deviceinfo_no_framebuffer" = "true" ]; then
|
|
echo "NOTE: Skipping framebuffer splashscreen (deviceinfo_no_framebuffer)"
|
|
return
|
|
fi
|
|
# Disable splash
|
|
if grep -q PMOS_NOSPLASH /proc/cmdline; then
|
|
return
|
|
fi
|
|
echo "IMG_ALIGN=CM" >>/tmp/fbsplash.cfg
|
|
gzip -c -d "$1" >/tmp/splash.ppm
|
|
fbsplash -s /tmp/splash.ppm -i /tmp/fbsplash.cfg
|
|
}
|
|
|
|
show_splash_loading() {
|
|
# Allow overriding the default loading splash screen with a
|
|
# "splash.ppm.gz" file on the boot partition
|
|
if [ -e /boot/splash.ppm.gz ]; then
|
|
show_splash /boot/splash.ppm.gz
|
|
else
|
|
show_splash /splash-loading.ppm.gz
|
|
fi
|
|
}
|
|
|
|
set_framebuffer_mode() {
|
|
[ -e "/sys/class/graphics/fb0/modes" ] || return
|
|
[ -z "$(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
|
|
}
|
|
|
|
setup_framebuffer() {
|
|
# Skip for non-framebuffer devices
|
|
# shellcheck disable=SC2154
|
|
if [ "$deviceinfo_no_framebuffer" = "true" ]; then
|
|
echo "NOTE: Skipping framebuffer setup (deviceinfo_no_framebuffer)"
|
|
return
|
|
fi
|
|
|
|
# Wait for /dev/fb0
|
|
echo "NOTE: Waiting 10 seconds for the framebuffer /dev/fb0."
|
|
echo "If your device does not have a framebuffer, disable this with:"
|
|
echo "no_framebuffer=true in <https://postmarketos.org/deviceinfo>"
|
|
for _ in $(seq 1 100); do
|
|
[ -e "/dev/fb0" ] && break
|
|
sleep 0.1
|
|
done
|
|
if ! [ -e "/dev/fb0" ]; then
|
|
echo "ERROR: /dev/fb0 did not appear!"
|
|
return
|
|
fi
|
|
|
|
set_framebuffer_mode
|
|
}
|
|
|
|
setup_bootchart2() {
|
|
if grep -q PMOS_BOOTCHART2 /proc/cmdline; then
|
|
if [ -f "/sysroot/sbin/bootchartd" ]; then
|
|
# shellcheck disable=SC2034
|
|
init="/sbin/bootchartd"
|
|
echo "remounting /sysroot as rw for /sbin/bootchartd"
|
|
mount -o remount, rw /sysroot
|
|
|
|
# /dev/null may not exist at the first boot after
|
|
# the root filesystem has been created.
|
|
[ -c /sysroot/dev/null ] && return
|
|
echo "creating /sysroot/dev/null for /sbin/bootchartd"
|
|
mknod -m 666 "/sysroot/dev/null" c 1 3
|
|
else
|
|
echo "WARNING: bootchart2 is not installed."
|
|
fi
|
|
fi
|
|
}
|
|
|
|
loop_forever() {
|
|
while true; do
|
|
sleep 1
|
|
done
|
|
}
|