File list (Check if you may need any files):
bin
...\ash
...\busybox
...\cat
...\chgrp
...\chmod
...\chown
...\cp
...\date
...\dd
...\df
...\dmesg
...\echo
...\egrep
...\false
...\fgrep
...\fsync
...\grep
...\gunzip
...\gzip
...\ipcalc.sh
...\kill
...\ln
...\lock
...\login
...\login.sh
...\ls
...\mkdir
...\mknod
...\mktemp
...\mount
...\mv
...\netmsg
...\netstat
...\nice
...\opkg
...\pidof
...\ping
...\ping6
...\ps
...\pwd
...\rm
...\rmdir
...\sed
...\sh
...\sleep
...\sync
...\tar
...\touch
...\true
...\ubus
...\umount
...\uname
...\vi
...\zcat
dev
...\console
etc
...\TZ
...\banner
...\config
...\......\dhcp
...\......\dropbear
...\......\firewall
...\......\ipqos
...\......\luci
...\......\osconfig
...\......\system
...\......\ucitrack
...\......\uhttpd
...\......\wifidog
...\crontabs
...\........\root
...\device_info
...\diag.sh
...\dnsmasq.conf
...\dropbear
...\........\dropbear_dss_host_key
...\........\dropbear_rsa_host_key
...\firewall.user
...\fstab
...\group
...\hosts
...\hotplug-preinit.json
...\hotplug.d
...\.........\firmware
...\.........\........\10-rt2x00-eeprom
...\.........\iface
...\.........\.....\00-netstate
...\.........\.....\15-teql
...\.........\.....\20-firewall
...\.........\.....\25-dnsmasq
...\.........\net
...\.........\...\00-sysctl
...\.........\usb
...\.........\...\10-motion
...\hotplug.json
...\init.d
...\......\boot
...\......\cron