Fix OpenRC boot hang in msm-modem-uim-selection, USB gadget UDC race/unbind, and SIM2 lock sync

overlay/rootfs/usr/share/initramfs/init.sh

@@ -0,0 +1,84 @@
+#!/bin/busybox ash
+# shellcheck disable=SC1091
+
+# Export all variables so they're available in /init_2nd.sh
+set -a
+
+IN_CI="false"
+LOG_PREFIX="[pmOS-rd]"
+
+# Handle halt/poweroff/reboot
+# Signals from busybox/halt.c
+trap 'halt -f' USR1
+trap 'poweroff -f' USR2
+trap 'reboot -f' TERM
+
+[ -e /hooks/10-verbose-initfs.sh ] && set -x
+
+[ -e /hooks/05-ci.sh ] && IN_CI="true"
+
+[ -e /etc/unudhcpd.conf ] && . /etc/unudhcpd.conf
+. ./init_functions.sh
+. /usr/share/misc/source_deviceinfo
+[ -e /etc/os-release ] && . /etc/os-release
+# provide a default for os-release's VERSION in case the file doesn't exist
+VERSION="${VERSION:-unknown}"
+
+# This is set during packaging and is used when triaging bug reports
+INITRAMFS_PKG_VERSION="3.11.0-r1"
+
+export PATH=/usr/bin:/bin:/usr/sbin:/sbin
+/bin/busybox --install -s
+/bin/busybox-extras --install -s
+
+# Mount everything, set up logging, modules, mdev
+mount_proc_sys_dev
+parse_cmdline < /proc/cmdline
+setup_log
+echo "  ❬❬ PMOS STAGE 1 ❭❭"
+echo "initramfs version: $INITRAMFS_PKG_VERSION"
+setup_firmware_path
+
+load_modules /usr/lib/modules/initramfs.load
+load_modules /lib/modules/initramfs.load
+
+# Jump straight to the 2nd stage init if available
+# (no separate -extra) or no-op otherwise
+jump_init_2nd
+
+echo "Loading initramfs-extra..."
+
+# We need mdev to find the boot partition
+setup_mdev
+
+load_modules /lib/modules/initramfs.load
+
+setup_usb_network
+start_unudhcpd
+
+if [ "$IN_CI" = "false" ]; then
+	setup_framebuffer
+fi
+
+# Discover the partitions if they're "subpartitions"
+# (where the whole disk image is flashed to a partition)
+mount_subpartitions
+
+# Poll for the boot partition to become available or crash
+wait_boot_partition
+mount_boot_partition /boot
+extract_initramfs_extra /boot/initramfs-extra
+# /boot is mounted later into the rootfs
+umount /boot
+
+# Kill mdev, since it's replaced by udev in the
+# second stage init
+kill mdev 2>/dev/null
+
+# Now we can jump to the 2nd stage init
+jump_init_2nd
+
+# Somehow init_2nd.sh is missing
+echo "$LOG_PREFIX ERROR: /init_2nd.sh not found!"
+echo "$LOG_PREFIX For more information, see <https://postmarketos.org/debug-shell>"
+fail_halt_boot