I'd like to thank you for the guide.

I succesfully managed to boot into ArchLinux using multiboot, but it immediatly started throwing "udevd[XXX]: unable to receive ctrl connection: Function not implemented"-errors at me.

I had to do a reflash (no problem tho' - my phone was messed up), but I'll gladly try it out once again.

One question tho': What do you mean when you say "remember to sync" after having put all the files onto the partition?