root@OpenWrt:/# cat /proc/mtd
dev: size erasesize name
mtd0: 00040000 00020000 "Bootloader"
mtd1: 00040000 00020000 "Config"
mtd2: 00040000 00020000 "Bdata"
mtd3: 00040000 00020000 "factory"
mtd4: 00040000 00020000 "crash"
mtd5: 00080000 00020000 "crash_syslog"
mtd6: 00040000 00020000 "reserved0"
mtd7: 00400000 00020000 "kernel_stock"
mtd8: 00400000 00020000 "kernel"
mtd9: 0f580000 00020000 "ubi"
root@OpenWrt:/# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 3.8M 3.8M 0 100% /rom
tmpfs 249.7M 248.0K 249.4M 0% /tmp
tmpfs 249.7M 76.0K 249.6M 0% /tmp/root
overlayfs:/tmp/root 249.7M 76.0K 249.6M 0% /
tmpfs 512.0K 40.0K 472.0K 8% /dev
root@OpenWrt:/# ubus call system board
{
"kernel": "5.4.188",
"hostname": "OpenWrt",
"system": "MediaTek MT7621 ver:1 eco:3",
"model": "Xiaomi Mi Router 3 Pro",
"board_name": "xiaomi,mi-router-3-pro",
"release": {
"distribution": "OpenWrt",
"version": "21.02.3",
"revision": "r16554-1d4dea6d4f",
"target": "ramips/mt7621",
"description": "OpenWrt 21.02.3 r16554-1d4dea6d4f"
}
}
i'v follow this step by step, manytimes, still can not save changes after reboot. anyone can help? many thanx!