I encountered this problem, no matter how much I expand the / dev / sdd10,
my root directory is only 3.1G, you can see from the following
Any help would be very much appreciated.Thank you.
root@linaro-developer:~# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 3.1G 1.4G 1.8G 44% /
root@linaro-developer:~# mount -l
/dev/sdd10 on / type ext4 (rw,relatime,data=ordered) [rootfs]