openwrt extroot

extroot.sh

#!/bin/sh
# openwrt extroot /dev/sda1 ext4  /dev/sda2 swap
# latest version https://downloads.openwrt.org/releases/19.07-SNAPSHOT/targets/ar71xx/generic/

opkg update
opkg install kmod-usb-storage kmod-scsi-core block-mount kmod-fs-ext4 kmod-usb-uhci e2fsprogs fdisk

echo "
sysctl -w net.ipv6.conf.all.disable_ipv6=1
sysctl -w net.ipv6.conf.default.disable_ipv6=1

# https://forum.openwrt.org/t/fstools-extroot-may-have-a-bug/51743/2
export PREINIT=1
mount_root

exit 0
" > /etc/rc.local

modprobe sd_mod
modprobe usb-storage
modprobe ext4
lsmod | grep -Ei 'sd_mod|usb-storage|ext4'

# mkfs.ext4 -F /dev/sda1 #format ext4
mkswap /dev/sda2

mkdir -p /mnt/sda1
mount /dev/sda1 /mnt/sda1
mkdir -p /tmp/cproot
mount --bind / /tmp/cproot
tar -C /tmp/cproot -cvf - . | tar -C /mnt/sda1 -xf -
umount /tmp/cproot

echo "
config 'global'
	option	anon_swap	'0'
	option	anon_mount	'0'
	option	auto_swap	'1'
	option	auto_mount	'1'
	option	delay_root	'5'
	option	check_fs	'0'

config swap
	option device '/dev/sda2'
	option enabled '1'

config mount
	option target '/overlay'
	option device '/dev/sda1'
	option enabled '1'
" > /etc/config/fstab

/etc/init.d/fstab enable
readlink -f /etc/rc.d/*fstab


# reboot

# after extroot
opkg update
opkg install luci-app-https-dns-proxy luci-app-banip luci-app-qos wget uclient-fetch libustream-wolfssl20150806



# https://rc30-popo.hatenablog.com/entry/2019/05/15/232151
# https://codebeta.com/pentest-lab-part-1-openwrt-with-extroot-f00ba4b6ffd5
# https://www.pcsuggest.com/configuring-extroot-with-openwrt-on-tp-link-mr-3220/
# https://samhobbs.co.uk/2013/11/more-space-for-packages-with-extroot-on-your-openwrt-router
# https://phillymesh.net/2016/04/11/cjdns-on-openwrt-part-2-configuring-extroot-for-more-storage/

# Config Script
# https://github.com/valdi74/scripts/blob/master/ruter_config/make_config_script.sh
# https://github.com/wulfy23/files-postinstall/blob/master/0-basic/bin/opK
# sysupgrade -c -o -u -k -t -v openwrt-19.07-snapshot-r10841-594f731e04-ar71xx-generic-dir-825-b1-squashfs-sysupgrade.bin
# sysupgrade -c -o -u -v openwrt-19.07-snapshot-r10841-594f731e04-ar71xx-generic-dir-825-b1-squashfs-sysupgrade.bin