So I got one of those SD card flush mounts, but it occasionally self ejects. I'm trying to solve that via kextunload given on this [page](https://apple.stackexchange.com/questions/62478/re-mount-ejected-sd-card-without-reinserting)

Entering:

```
sudo kextunload -b /System/Library/Extensions/AppleSDXC.kext

```

Returns:

```
(kernel) Kext /System/Library/Extensions/AppleSDXC.kext not found for unload request.
Failed to unload /System/Library/Extensions/AppleSDXC.kext - (libkern/kext) not found.

```