Well, that installs maemo-optify-runonce (and I can see why seeing DEBIAN/preinst - no idea why it failed, though, as I have - I think - enough free space). After that, I can install mp-fremantle-community-pr, which pulls the csthumb version of zlibg1, which causes a reboot loop. Any idea why that might be? Is the only difference between stock version and csthumb version the compilation flag? Edit: Is zlib1g (which is a compression library) used during boot at all?