245 lines
6.1 KiB
Bash
Executable File
245 lines
6.1 KiB
Bash
Executable File
#!/bin/sh
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# Uncomment the following line to get debug info
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#set -x
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# This is to avoid expanding '*' in fdisk results
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set -f
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source /usr/local/lib/utils
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SELF=$(basename $0)
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# Find out the root partition number from the kernel command line
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root_part=$(cat /proc/cmdline | sed -n 's|^.*root=\([^ ]*\).*|\1|p')
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root_part_num=${root_part#/dev/mmcblk0p}
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if [ "${root_part_num}" -eq 1 ]; then
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die_notif 0 "recovery mode"
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elif [ "${root_part_num}" = "{$root_part}" ]; then
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die_notif 1 "${root_part} is not an SD card partition, aborting"
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elif [ "${root_part_num}" -ne 2 ]; then
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die_notif 2 "unknown partition layout, aborting"
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fi
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let swap_part_num=${root_part_num}+1
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swap_part=/dev/mmcblk0p${swap_part_num}
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let usb_part_num=${swap_part_num}+1
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usb_part=/dev/mmcblk0p${usb_part_num}
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check_root_id () {
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[ $(id -u) -ne 0 ] && die_notif 3 "this script must be run as root, aborting"
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return 0
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}
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resize_rootfs_partition () {
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# Check if root partition is already resized
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local rootfs_part_line=$(fdisk -l /dev/mmcblk0 2>/dev/null | grep ${root_part})
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set ${rootfs_part_line}
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local rootfs_part_size=${6}
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if [ "${rootfs_part_size}" = "1G" ]; then
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info "root partition is already resized"
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return 0
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fi
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# Check that the last partition is the rootfs partition
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local last_part_line=$(fdisk -l /dev/mmcblk0 2>/dev/null | tail -n 1)
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set ${last_part_line}
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local last_part_num=${1#/dev/mmcblk0p}
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local part_start=${3}
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if [ "${last_part_num}" != "${root_part_num}" ]; then
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die_notif 4 "rootfs is not the last partition. Don't know how to expand, aborting"
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fi
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# Remove (temporarily) the rootfs partition
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# Re-create the rootfs partition with a 1GB size
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fdisk /dev/mmcblk0 >/dev/null 2>&1 <<EOF
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d
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${root_part_num}
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n
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p
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${root_part_num}
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${part_start}
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+1G
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w
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EOF
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# Mark the rootfs partition as bootable
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sfdisk -A /dev/mmcblk0 ${root_part_num} >/dev/null 2>&1 || die_notif 7 "cannot make the rootfs partition bootable, aborting"
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# Reload the partition table
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partprobe /dev/mmcblk0 >/dev/null 2>&1 || die_notif 8 "cannot reload the partition table, aborting"
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return 0
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}
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resize_rootfs_filesystem () {
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local rootfs_line=$(df | grep /dev/root)
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set ${rootfs_line}
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local rootfs_size=${2}
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if [ ${rootfs_size} -gt 1000000 ]; then
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info "rootfs already resized"
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return 0
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fi
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rw
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resize2fs ${root_part} >/dev/null 2>&1 || die_notif 9 "cannot resize the root filesystem, aborting"
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ro
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return 0
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}
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create_swap () {
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# Check if swap partition already exists
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fdisk -l /dev/mmcblk0 2>/dev/null | grep "Linux swap" >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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info "swap partition already exists"
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else
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mount | grep -q ${usb_part}
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if [ $? -ne 0 ]; then
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# Check that the last partition is the rootfs partition
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local last_part_line=$(fdisk -l /dev/mmcblk0 2>/dev/null | tail -n 1)
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set ${last_part_line}
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local last_part_num=${1#/dev/mmcblk0p}
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if [ "$last_part_num" != "$root_part_num" ]; then
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die_notif 10 "rootfs is not the last partition. Don't know how to create the backing store partition"
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fi
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# Create an additional linux swap partition
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let swap_part_num=${last_part_num}+1
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swap_part=/dev/mmcblk0p${swap_part_num}
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fdisk /dev/mmcblk0 >/dev/null 2>&1 <<EOF
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n
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p
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${swap_part_num}
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+128M
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t
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${wap_part_num}
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82
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w
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EOF
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fi
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fi
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# Check if swap is enabled
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local swap_line=$(free | grep Swap)
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set ${swap_line}
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local swap_size=${2}
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if [ ${swap_size} -eq 0 ]; then
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mkswap ${swap_part} >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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die_notif 11 "cannot create swap file, aborting"
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fi
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# Enable swap
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swapon -a >/dev/null 2>&1 || die_notif 12 "cannot enable swap file, aborting"
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fi
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return 0
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}
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create_usb_partition () {
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# Check if the USB partition already exists
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fdisk -l /dev/mmcblk0 2>/dev/null | grep "W95 FAT32" >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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info "USB partition already exists"
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return 0
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fi
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mount | grep -q ${usb_part}
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if [ $? -ne 0 ]; then
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# Check that the last partition is the swap partition
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local last_part_line=$(fdisk -l /dev/mmcblk0 2>/dev/null | tail -n 1)
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set ${last_part_line}
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local last_part_num=${1#/dev/mmcblk0p}
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if [ "${last_part_num}" != "${swap_part_num}" ]; then
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die_notif 13 "rootfs is not the last partition. Don't know how to create the backing store partition"
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fi
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# Create an additional FAT32 USB partition that fills the disk
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let usb_part_num=${last_part_num}+1
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usb_part=/dev/mmcblk0p${usb_part_num}
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fdisk /dev/mmcblk0 >/dev/null 2>&1 <<EOF
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n
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p
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${usb_part_num}
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t
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${usb_part_num}
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c
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w
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EOF
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sync
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fi
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# Reload the partition table
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partprobe /dev/mmcblk0 >/dev/null 2>&1 || die_notif 14 "cannot reload the partition table, aborting"
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return 0
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}
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format_usb_partition () {
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# Check if the USB partition is already mounted
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mount | grep /mnt > /dev/null 2>&1
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if [ $? -eq 0 ]; then
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info "USB partition already mounted"
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return 0
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fi
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# Format the backing store as FAT32
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mkfs.vfat ${usb_part} >/dev/null 2>&1 || die_notif 15 "cannot format the backing store partition"
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return 0
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}
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copy_files_to_usb_partition () {
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# Check if the USB partition is already mounted
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mount | grep /mnt > /dev/null 2>&1
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if [ $? -ne 0 ]; then
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mount /mnt/ || die_notif 16 "Cannot mount /mnt"
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fi
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# Copy freware games and other necessary mnt files
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unzip -q -o /usr/local/share/mnt_files.zip -d /mnt/
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# Copy OPKs
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set +f
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cp -r /usr/local/share/OPKs/* /mnt
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set -f
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# Unmount USB partition
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umount /mnt/ || die_notif 17 "Cannot unmount /mnt"
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return 0
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}
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check_root_id
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notif set 0 " FIRST BOOT DETECTED"
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notif set 0 " 1/6 RESIZE ROOT PARTITION"
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resize_rootfs_partition
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notif set 0 " 2/6 RESIZE ROOT FILESYSTEM"
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resize_rootfs_filesystem
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notif set 0 " 3/6 CREATE SWAP"
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create_swap
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notif set 0 " 4/6 CREATE USB PARTITION"
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create_usb_partition
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notif set 0 " 5/6 FORMAT USB PARTITION"
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format_usb_partition
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notif set 0 " 6/6 COPY FILES TO ^ USB PARTITION"
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copy_files_to_usb_partition
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notif set 0 " FIRST BOOT SETUP FINISHED!"
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fw_setenv first_boot_ok 1
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sleep 1
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notif clear
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