Rebuild kernel package from src.rpm for Almalinux 10-beta

Support
1

Hello everyone,

I’m trying to build a kernel package from the src.rpm for Arm’s AlmaLinux 10-beta. I’m new to AlmaLinux and package systems, so I would like to ask where I should get the almalinux-10-aarch64.cfg for the mock command:

  $ mock -r almalinux-10-aarch64 --rebuild kernel-6.11.0-0.rc5.23.el10.src.rpm

This command finishes with the following error:

ERROR: Could not find required config file: /etc/mock/almalinux-10-aarch64.cfg
ERROR:   If you're trying to specify a path, include the .cfg extension, e.g. -r ./target.cfg
ERROR: Non-existing Mock config 'almalinux-10-aarch64'

I guess it won’t be enough just to copy the config for almalinux-9, as it will also be necessary to provide almalinux-10.tpl and so on, like in the example below:

[ok@pc-11278 kernel]$ cat /etc/mock/almalinux-9-aarch64.cfg 
include('templates/almalinux-9.tpl')

config_opts['root'] = 'almalinux-9-aarch64'
config_opts['description'] = 'AlmaLinux 9'
config_opts['target_arch'] = 'aarch64'
config_opts['legal_host_arches'] = ('aarch64',)

How should I build the kernel.src.rpm in this case?

I assume that I can do the following: “rpmbuild -ba ~/rpmbuild/SPECS/kernel.spec” but IIUC use mock is better, isn’t it?

Another question I have is if I want to update a config, which wiil be used for kernel compilation, which defconfig should I use:

ls -la ~/rpmbuild/SOURCES/kernel-aarch64-*.config 
-rw-r--r--. 1 ok ok 249242 Sep 23 02:00 /home/ok/rpmbuild/SOURCES/kernel-aarch64-64k-debug-rhel.config
-rw-r--r--. 1 ok ok 249675 Feb 17 12:12 /home/ok/rpmbuild/SOURCES/kernel-aarch64-64k-rhel.config
-rw-r--r--. 1 ok ok 249103 Sep 23 02:00 /home/ok/rpmbuild/SOURCES/kernel-aarch64-debug-rhel.config
-rw-r--r--. 1 ok ok 249547 Sep 23 02:00 /home/ok/rpmbuild/SOURCES/kernel-aarch64-rhel.config
-rw-r--r--. 1 ok ok 250914 Sep 23 02:00 /home/ok/rpmbuild/SOURCES/kernel-aarch64-rt-debug-rhel.config
-rw-r--r--. 1 ok ok 251358 Sep 23 02:00 /home/ok/rpmbuild/SOURCES/kernel-aarch64-rt-rhel.config

Thanks in advance.

2

You can find all the config files in the Alma kernel repo. rpms/kernel: The Linux kernel - kernel - AlmaLinux OS Foundation Git Server

3

The configs in the Alma kernel repo are related only to the kernel itself, aren’t they?

There are no mock configs that would be placed in /etc/mock, correct?

[ok@pc-11278 aarch64]$ ls -la /etc/mock/alma*
-rw-r--r--. 1 root root 251 Jan 16 01:00 /etc/mock/alma+epel-8-aarch64.cfg
-rw-r--r--. 1 root root 251 Jan 16 01:00 /etc/mock/alma+epel-8-ppc64le.cfg
-rw-r--r--. 1 root root 248 Jan 16 01:00 /etc/mock/alma+epel-8-x86_64.cfg
-rw-r--r--. 1 root root 172 Jan 16 01:00 /etc/mock/alma+epel-9-aarch64.cfg
-rw-r--r--. 1 root root 172 Jan 16 01:00 /etc/mock/alma+epel-9-ppc64le.cfg
-rw-r--r--. 1 root root 170 Jan 16 01:00 /etc/mock/alma+epel-9-s390x.cfg
-rw-r--r--. 1 root root 171 Jan 16 01:00 /etc/mock/alma+epel-9-x86_64.cfg
-rw-r--r--. 1 root root 212 Jan 16 01:00 /etc/mock/almalinux-8-aarch64.cfg
-rw-r--r--. 1 root root 212 Jan 16 01:00 /etc/mock/almalinux-8-ppc64le.cfg
-rw-r--r--. 1 root root 209 Jan 16 01:00 /etc/mock/almalinux-8-x86_64.cfg
-rw-r--r--. 1 root root 212 Jan 16 01:00 /etc/mock/almalinux-9-aarch64.cfg
-rw-r--r--. 1 root root 212 Jan 16 01:00 /etc/mock/almalinux-9-ppc64le.cfg
-rw-r--r--. 1 root root 206 Jan 16 01:00 /etc/mock/almalinux-9-s390x.cfg
-rw-r--r--. 1 root root 209 Jan 16 01:00 /etc/mock/almalinux-9-x86_64.cfg

If my understanding is correct, I need to use mock to build the src.rpm with the command:

mock -r almalinux-10-aarch64 --rebuild fullpackagename.src.rpm

and I need to obtain the almalinux-10-aarch64 config from somewhere