Here is what I did in a nutshell:
- Download openSUSE 12.1 64-bit ISO and verified integrity with md5sum
- Configured my Thinkpad, running openSUSE 11.4, as the network installation server.
- Boot up my home PC in PXE-boot mode and installed openSUSE 12.1 from my Thinkpad.
- Once my PC is installed and running openSUSE 12.1, I configured it as the network installation server and boot up my Thinkpad in PXE-boot mode and installed openSUSE 12.1 onto it.
For more details, please refer to my older posts: