[Q] Apps can't see mounted ext4 partition.

[replica9000]

On my previous HTC phones, I was able to mount an ext4 partition simply by doing:

mount -o remount,rw /
mkdir /storage/sdcard3
mount -o remount,ro /
mount -t ext4 /dev/block/mmcblk1p2 /storage/sdcard3

Problem is, I can only see the files in terminal. None of the other apps can see anything, even with root access. Anyone been able to do this successfully on this phone?

 

[replica9000]

Bump. From the terminal, I see no reason why this shouldn't work. I've mounted with the same options as other partitions, and even used chmod and chown to modify permissions to be identical to those in other mounts. I'm not sure if this is a KitKat issue, or something HTC has done to the ROM itself.

I've been able to do this on both my Incredible and Rezound, both with stock and AOSP ROMs. I'm really stumped why I can't get this working on my M8.