No problem. Happy to share any info :)
Though, I forgot to mention that Linux systems are case-sensitive. So if a file is named "Something.JPG" and it is used with different case in game (something.jpg, something.JPG, Something.jpg etc), then it won't work on Linux :/
So, while I do prefer the solution I explained above, to make it work, you will need to make sure that all uses of filenames are the same everywhere they are used. One way is to write some script (in Python or whatever) that renames all files to lower-case and looks for all of them in your game (non-case-sensitive search) to rename them to lower-case.