該死的 NanoPi 安裝 OpenWrt 後，主分區空間極其有限(≈100MB)，基本上裝不了幾個軟件包。儘管你的 eMMC / SD 容量很大，但是刷入 OpenWrt 後，系統只能利用到其中不到 2GB 的空間，其餘容量都被摒棄。

expand-root-partition-of-openwrt.md

Log into your OpenWrt instance via SSH and install these prerequisites:

opkg update
opkg install parted losetup resize2fs

Now you can download and execute a helper script which will add the expansion to 100% free space on next boot:

wget -U "" -O expand-root.sh "https://openwrt.org/_export/code/docs/guide-user/advanced/expand_root?codeblock=0"
. ./expand-root.sh

Now reboot the device whenever convenient and afterwards you should see tons of new space using df -h command:

Filesystem                Size      Used Available Use% Mounted on
/dev/root                13.7G     52.0M     13.6G   0% /
tmpfs                   994.3M    200.0K    994.1M   0% /tmp
tmpfs                   512.0K         0    512.0K   0% /dev

source: Benjamin Höglinger-Stelzer