Originally Posted by Gergith
Do I have to use PC?
No, there are other methods for doing this from Linux, which SHOULD also work from OS X seeing as it’s *nix based.
Yes, works on OS X. You might have to install a Linux file system tool though. You can use the Terminal, but there are also disk cloning softwares available. Mac's native DiskUtility software can expand partitions (and can probably also do the cloning once you have the Linux files system tool).