Permissions Issue

[privateer]

I'm having some trouble, and I believe it is a permissions issue.

Summary:
The "ZM - Event" stream does not show any images.
When I click on video ->generate video I receive "Video Generation Failed!", but the error log is not outputted to the deep storage folder like zmvideo.log tells me it is.

I have a 2nd hard drive installed and mounted at /cameras

DIR_EVENTS /cameras/events
USE_DEEP_STORAGE checked
DIR_IMAGES images
DIR_SOUNDS sounds

The rest are default as far as I know


Thanks in advance.

Zoneminder is installed on the latest ubuntu server and is capturing properly on 7 cameras.

Edit: how should I set the mounted drive so that ffmpeg can write to it? Would a chmod 777 /cameras fix it(ugly fix)?