AW: BusyBox 1.30.1 fstrim did not take effect

[Walter Harms]

fstrim <mountpoint>

check first with mount (or df or ..) what the mountpoints in your system are.
________________________________________
Von: busybox <busybox-bounces at busybox.net> im Auftrag von Tang Jiye <oktjwill at gmail.com>
Gesendet: Dienstag, 9. Juni 2020 04:40:24
An: busybox at busybox.net
Betreff: BusyBox 1.30.1 fstrim did not take effect

Hi,

I am using busybox 1.30.1 and yocto.

I enable the fstrim then I try this command on my machine

everytime I used fstrim -o

it does not do anything.

It only shows me :
BusyBox v1.30.1 (2020-06-02 20:35:41 UTC) multi-call binary.

Usage: fstrim [OPTIONS] MOUNTPOINT

nothing takes effect as well as other commands

Anyone knows how to trouble shoot this issue?