[CentOS] Missing /etc/ld.so.conf.d/kernel-3.10.0-1127.19.1.el7.x86_64.conf

Mon Apr 12 14:56:23 UTC 2021
Valeri Galtsev <galtsev at kicp.uchicago.edu>

On 4/12/21 8:34 AM, Johnny Hughes wrote:
> On 4/11/21 11:32 AM, Kenneth Porter wrote:
>> I'm yum updating some CentOS 7 systems today and got this error. Two
>> systems (so far) seem to have rebooted fine. Should I worry?
>> error: file /etc/ld.so.conf.d/kernel-3.10.0-1127.19.1.el7.x86_64.conf:
>> No such file or directory
> The kernel does does contain that file.  In CentOS linux 7 (and 8), the
> file is actually blank .. well is has one comment line:
> # Placeholder file, no vDSO hwcap entries used in this kernel.
> If you want the error to go away, just as the root user, do:
> touch /etc/ld.so.conf.d/kernel-3.10.0-1127.19.1.el7.x86_64.conf
> chmod 444 /etc/ld.so.conf.d/kernel-3.10.0-1127.19.1.el7.x86_64.conf
> The above 2 commands should create a zero size file there and prevent
> the error.
> As to how you got the error .. it seems there is an issue with the
> kernel-3.10.0-1127.19.1.el7.x86_64 install on your machine, it is at
> least missing that file.  If you are using that kernel .. you might want
> to re-install it instead to make sure all the files are there.  There is
> a newer kernel released for EL7.
> As to the purpose of /etc/ld.so.conf.d/, info here:
> https://linux.101hacks.com/unix/ldconfig/

That is the general description of ldconfig, which is transparent and 
clear as to what ldconfig purpose is.

What is puzzling for me (I'm sure you are answering my question): why 
anything related to kernel package should be needed for automatically 
searching for shared libraries to be loaded (when one uses anything 
linked to shared libraries)? What kernel package brings that can have 
anything to do with that??!

Thanks for insights!


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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247