Hi, I have an up-to-date ~amd64 GenToo installation with has been built on a current AMD64 (Phenom II) machine where I used -mtune=native in etc/make.conf since I didn't think of the case that I would need to port this system to a somewhat older Opteron based machine (still AMD64)
But after cloning the system, some fundamental utilities die of an illegal instruction. So I have to rebuild GenToo nearly from scratch. emerge -e world doesn't work. So, what is a reasonably fast method? I'd like to keep /etc /usr/portage except /usr/portage/packages /var/lib/portage Is there a fast method e.g. by using the Gentoo based SystemRescueCD to reinstall a very basic system, such that I can do emerge -e world. It looks as if the gcc tool-chain is intact since I could compile a kernel without any problem. But some utilities, e.g. find, die of an illegal instruction. Many thanks for any hints saving me a couple of hours work, Helmut.
