84 lines
2.3 KiB
Bash
84 lines
2.3 KiB
Bash
#!/bin/busybox sh
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# Copyright 2015 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# To bootstrap the factory installer on rootfs. This file must be executed as
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# PID=1 (exec).
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# Note that this script uses the busybox shell (not bash, not dash).
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#original: https://chromium.googlesource.com/chromiumos/platform/initramfs/+/refs/heads/main/factory_shim/bootstrap.sh
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set +x
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invoke_terminal() {
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local tty="$1"
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local title="$2"
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shift
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shift
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# Copied from factory_installer/factory_shim_service.sh.
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echo "${title}" >>${tty}
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setsid sh -c "exec script -afqc '$*' /dev/null <${tty} >>${tty} 2>&1 &"
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}
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enable_debug_console() {
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local tty="$1"
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echo -e '\033[1;33m[cros_debug] enabled on '${tty}'.\033[m'
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invoke_terminal "${tty}" "[Bootstrap Debug Console]" "/bin/busybox sh"
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}
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find_rootfs_partitions() {
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local disks=$(fdisk -l | sed -n "s/Disk \(\/dev\/.*\):.*/\1/p")
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if [ ! "${disks}" ]; then
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return 1
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fi
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for disk in $disks; do
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local partitions=$(fdisk -l $disk | sed -n "s/^[ ]\+\([0-9]\+\).*shimboot_rootfs:\(.*\)$/\1:\2/p")
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if [ ! "${partitions}" ]; then
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continue
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fi
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echo "${disk}${partitions}"
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done
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}
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#from original bootstrap.sh
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move_mounts() {
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local base_mounts="/sys /proc /dev"
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local newroot_mnt="$1"
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for mnt in $base_mounts; do
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# $mnt is a full path (leading '/'), so no '/' joiner
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mkdir -p "$newroot_mnt$mnt"
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mount -n -o move "$mnt" "$newroot_mnt$mnt"
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done
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}
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main() {
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echo "...:::||| Bootstrapping ChromeOS Factory Shim |||:::..."
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echo "idk please work"
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enable_debug_console "/dev/pts/1"
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find_rootfs_partitions
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local rootfs_partitions=$(find_rootfs_partitions)
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for rootfs_partition in $rootfs_partitions; do
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local part_path=$(echo $rootfs_partition | cut -d ":" -f 1)
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local part_name=$(echo $rootfs_partition | cut -d ":" -f 2)
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echo "found bootable partition ${part_name} on ${part_path}"
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done
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echo "moving mounts to newroot"
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mkdir /newroot
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mount /dev/sda4 /newroot
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move_mounts /newroot
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echo "switching root"
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sleep 2
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mkdir -p /newroot/bootloader
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pivot_root /newroot /newroot/bootloader
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local tty="/dev/pts/0"
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exec /sbin/init < "$tty" >> "$tty" 2>&1
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}
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main "$@"
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sleep 1d |