Ext4 support will be included in next build.First, thanks for maintaining this ROM, awesome work!
I have an issue where Android cannot mount my external SSD, be it in ext4, exFAT or NTFS, the device in the "storage" settings stays on "disk is safely ejected".
If I format the drive via the Android TV itself, it'll force FAT32, which is not viable for my use (4Gb limit and all).
After checking out the logcat, it seems ext4 isn't supported/enabled on the device, isn't it built into the LOS kernel?
Logcat available below;