So... I have a macbook, that crapped out on me and won't boot up but it will go to the menu to choose which volume to boot from. So I have a backed up dmg file of snow leopard (the highest os this macbook can boot) but I have no way to burn it as my desktop is a pc.
I go to a very large university with a big mac lab in the library so I decided to put the dmg file on a flash drive and bring it over to the library to burn a startup disk. Good idea except the dmg file is like 6.5GB and the biggest file that the fat32 filesystem on the flash drive can hold is like 2GB or something... Basically the entire dmg doesn't fit as a whole so I split it up into 4 parts using winrar.
I get over to the library only to find that the computers don't have unrarx or any other utility to deal with rar files. I went to download one and install it, but I am not an admin on the system so it says that I don't have the privileges to run the program.
I am stuck at the library with 4 rar files on a flash drive that I need to unpack without actually installing anything. Is there a way to do this natively in OS X or some trick that I could try? Any help would be greatly appreciated.