Unfortunately, Linux OS are rarely used in these parts.
as for undelivered stuff, it is most probably your recent work. try to recover files from your sd card.
This would have been if I use a particular SD card. We've got over 5 SDcards at the studio and they change hands at different times. Some could be with my colleagues in other states. And after sometime is in my hand again. They are literally the same color and model. I can't tell which one is which one.
That's not even the major problem, the undelivered jobs are old stuff. The client has just refused to pay.