Re: Replacing kernel-headers with custom compiled version (from kernel.org) - safe?

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On 26/06/19 23.51, Akemi Yagi wrote:
On Wed, Jun 26, 2019 at 5:20 AM Bagas Sanjaya <bagasdotme@xxxxxxxxx> wrote:
Hello CentOS users,

Currently I have compiled kernel version 4.19.37, which the source is from kernel.org. I compiled the kernel by following
steps:
- get the kernel tarball and unpack it
- install prerequisties as described in https://wiki.centos.org/HowTos/Custom_Kernel (in addition bc and openssl-devel)
- copy the kernel configuration:
    $ cp /boot/config-3.10.0-957.21.3.el7.x86_64 ~/linux-4.19.37/.config
- create configuration:
    $ cd ~/linux-4.19.37
    $ make olddefconfig
    $ make nconfig
- compile and create RPM package:
    $ make vmlinux
    $ make modules
    $ make rpm-pkg
- install kernel RPM:
    # yum install ~/rpmbuild/RPMS/x86_64/kernel-*.rpm

However, in the last step (installing kernel RPM), I got following notice:
================================================================================
   Package        Arch   Version
                           Repository                                        Size
================================================================================
Installing:
   kernel         x86_64 4.19.37_sentinel_custom-1
                           /kernel-4.19.37_sentinel_custom-1.x86_64         209 M
   kernel-devel   x86_64 4.19.37_sentinel_custom-1
                           /kernel-devel-4.19.37_sentinel_custom-1.x86_64   817 M
   kernel-headers x86_64 4.19.37_sentinel_custom-1
                           /kernel-headers-4.19.37_sentinel_custom-1.x86_64 4.6 M
       replacing  kernel-headers.x86_64 3.10.0-957.21.3.el7

Transaction Summary
================================================================================
Install  3 Packages

There, the compiled kernel-headers package (4.19.37_sentinel_custom-1) is about to replace stock version
(3.10.0-957.21.3.el7). Is it safe to continue installing from compiled RPM package above, or install kernel manually?
In general, you want to keep the distro's kernel-headers unless you
also plan to play with glibc. You may find the following article
useful:

https://kernelnewbies.org/KernelHeaders

Akemi
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So is it safe to install kernel RPMs generated by compilation from kernel.org tarball, or should I stick to manual
install?

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