Hi
I've installed Debian stable, the kernel is 2.6.8.
Next, I download kernel headers and source for 2.6.8. I copy the
/boot/config... to /usr/src/kernel-source directory as .config.
I do a make menuconfig and exit with no changes.
Then I make a new kernel-image with:
make-kpkg --rootcmd fakeroot --append-to-version -jp --revision 01 kernel_image
This should make a kernel identical to the one installed.
I then install the kernel with:
dpkg -i kernel-image...deb
The new kernel cannot boot. The kernel installed can still boot.