Normally to remove a custom kernel, you simply uninstall it from Preware.
I installed F15C-42 on Preware v1.7.5 a while ago.
The 3.0.4 update comes along, and I need to remove my F15C kernel. Except it disappeared from the Preware listing, presumably because of the reorganization of the testing feeds with the new Preware versions. Updating Preware and adding the new beta/alpha feeds makes the latest test kernels show up, but I still can't the old kernel that's currently installed.
What can I do? I guess i will have to doctor it, but I was surprised no one mentioned the issue. So I made this thread.