I load the ext2-module and mount /media/mmc1 via the minircS and everything works fine after a fresh boot, but after using the usb-connection it fails to remount the card and complains about a damaged card/fs.

Jaffa from #maemo told me to "find the scripts which present /media/mmc1 to the USB host when the USB cable's plugged in, and disable them (or twiddle them, at least)", has anybody ever done that?