Hi! As you may have already guessed from the topic of my message, I'm quite a beginner in kernelprogramming. I downloaded the 2.5.69 kernel tree and unpacked it into my home directory. At the moment I'm using the 2.4.18 kernel, which is located as usual in /usr/src/linux-2.4.18. My question is: How can I compile and install the 2.5 kernel without overwriting the modules and bzimage of the current 2.4 one, so that I can switch back if something goes wrong with the 2.5? I guess the bzimage only needs to be copied to save it, but what about the modules? Just rename the directory recursively? And please excuse me if I asked for something that has been discussed here too much already, but I couldn't find an answer for my question anywhere else. TIA, Steffen Menne -- Steffen Menne Germany -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/