Pocket door

[Gemstone]

So, we are stopped for the night on the east side of the Sierras, on the way from Yuma to Oregon, not a bad road....open the rig and find that the pocket door has come loose from the flimsy ceiling mounting, track and all, and is wedged solid in between the shower and the kitchen cabinets....it won't budge. And of course there is no place to get any leverage to push it back in place....so it'll have to ride that way until we reach our summer destination. I may have to remove the cabinets piece by piece until I have room to facilitate a proper repair. Naturally there weren't enough screws holding the track in place, and those they did use are maybe 1/2" long....grrrr.
Anyone know what is in the ceiling that the track is fastened to ? It looks like a piece of 1/4" plywood is covering something, but I can't see up in there to get a good look. Anyone make this repair ?

Regards
Gemstone