while trying to get modified red hat kernels to build for a project
mine, I came across something I did not completely understand. So I
backstepped and tried to build a general Red Hat kernel with no other
modifications than the red hat patches.
Did you remember to start out with a "make mrproper"? If you don't do
that, the kernel will *NOT* compile.
Attempt 2 consisted of downloading the kernel src.rpm, installing
then just building from the installed spec file. That seems to work a
That's a bit ambiguous to me. Did you install the src.rpm and then do a
rpmbuild -ba kernel-x.x-x.x
Otherwise, I'm not sure just from what you wrote how you used the spec
file to build a new kernel.
Now, my question. I was under the impression that the source tree
installed by the kernel-source rpm was the same source tree as the stock
kernel tree, with all the redhat patches applied. Is this not (or no
longer) the case ?
Nope. The only place you have the pristine kernel source is in the
.src.rpm. In the build process (as detailed in the spec file) a *TON* of
patches are applied.
Why would there be a difference ? Is it reasonable for me to expect
kernel-source to build out of the box ?
Yes. I'd guess you forgot the "make mrproper" part.
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