[elrepo] help with trying to make a 4.9 LT based on the 4.4LT spec file

[Pavlos Parissis]

On 13/06/2017 09:10 μμ, Jerry Scharf wrote:
> Hi,
> 
> I am hoping to get help with this. I have been using el-repo rpms to install the
> 4.4lt kernels.
> 
> 4.9 introduced BBF tcp congestion avoidance, which is a major improvement and will
> have a real positive impact on our traffic. The kernel.org folks have designated
> 4.9 as the next lt kernel after 4.4. So I want to get that running similar to
> el-repo 4.4 works now.
> 
> I copied the 4.4 spec file, modified it for 4.9. I grabbed 4.9.31 from kernel.org,
> unpacked it and built a new config file starting with the 4.4.71 config plus my
> few changes. On the same machine, 4.4.71 builds successfully.
> 
> I tried rpmbuild -bb and it made it most of the way through before dying.
> 
> It fails with:
> File not found:
> /root/rpmbuild/BUILDROOT/kernel-lt-4.9.31-1.el7.centos.x86_64/usr/lib64/libcpupower.so.0.0.0
> 

Alan Bartlett prepared kernel-lt packages with 4.9 but elrepo can only maintain
one LT kernel at the time, thus we don't have kernel-lt for 4.9[1]. Nevertheless,
Alan did most of the work for the spec and it has been working fine for me on
CentOS 7. I have attached the spec I have been using, I have only added the 1st
line to define the version I build. I think you can still find it in the archives
of the repo.

Cheers,
Pavlos

[1] search on ML archive for a mail from my about kernel-lt and 4.9 kernel.


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