When upgrading kernel:How to reuse old .config?

cayenne · l33t Joined: 17 Oct 2002 Posts: 945 Location: New Orleans

Is there a good HOWTO on kernel upgrades describing how to 'reuse' your old config on the new kernel build?

I'm guessing it isn't really safe to just drop your previous .config file into the new directory as that some things change, etc.

Is there a way to change the new kernel's .config values that are the same as the old version's .config, and then go to make menuconfig and do changes to the new stuff as needed?

I know there are some kernel install docs out there, but, never seen anything in them about saving some steps on a UPGRADE by keeping what was in common with you previous kernel .config...

Thanks in advance,

cayenne
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hensan · l33t Joined: 26 Jun 2003 Posts: 868 Location: Sweden

make oldconfig will take your existing config and just ask you about any new options that may have been added.

cayenne · l33t Joined: 17 Oct 2002 Posts: 945 Location: New Orleans

hensan · l33t Joined: 26 Jun 2003 Posts: 868 Location: Sweden

It doesn't matter, all you have to do is to drop your old .config in there and run make oldconfig. It's just so that certain stuff like the nvidia drivers can find your kernel that the symlink should point to the right kernel.

drescherjm · Posted: Fri Sep 10, 2004 8:14 pm Post subject:

If you use genkernel copy your old .config to /usr/share/genkernel/x86/kernel-config-2.6

Tsonn · Guru Joined: 03 Jun 2004 Posts: 550

Wouldn't it make more sense to run 'genkernel --oldconfig'?

cayenne · l33t Joined: 17 Oct 2002 Posts: 945 Location: New Orleans

Rainmaker · Posted: Sat Sep 11, 2004 12:37 am Post subject:

tip, if you already removed your old sources, try