I partially figured out what's going on... the entire file system is read-only?!

How do I fix that? I assume that tar copied the file permissions from the read-only jjfs2 mount from the PC onto the "internal" SD card (mmc2).

The control-panel/memory says there's no virtual space and nothing in the GUI will find the "external" SD card (mmc1). Xterm will find /media/mmc1 but that's the only thing.

Of course, I can't install anything either.