Migrating Gitlab-ce 10.4.2 on CentOS 7.4 to CentOS 8.2

There is no migration/upgrade path for CentÓS 7 to CentOS 8 so CentOS 8 was installed on an alternate server. Restore of Gitlab backup can only be performed on the same Gitlab Version/release. Upgrade to later version of Gitlab is planned after restore.

I added Gitlab repos on CentOS 8.2 as shown below but I am not able to install gitlab-ce-10.4.2-ce.0.el7.x86_64…

[root@ictgitt ~]# dnf repolist
repo id repo name
AppStream CentOS-8 - AppStream
BaseOS CentOS-8 - Base
extras CentOS-8 - Extras
gitlab_gitlab-ce gitlab_gitlab-ce
gitlab_gitlab-ce-source gitlab_gitlab-ce-source
gitlab_gitlab-ee gitlab_gitlab-ee
gitlab_gitlab-ee-source gitlab_gitlab-ee-source
[root@ictgitt ~]# dnf install gitlab-ce-10.4.2-ce.0.el7.x86_64 -y
gitlab_gitlab-ce 484 B/s | 862 B 00:01
gitlab_gitlab-ce-source 425 B/s | 862 B 00:02
gitlab_gitlab-ee 372 B/s | 862 B 00:02
gitlab_gitlab-ee-source 375 B/s | 862 B 00:02
No match for argument: gitlab-ce-10.4.2-ce.0.el7.x86_64
Error: Unable to find a match: gitlab-ce-10.4.2-ce.0.el7.x86_64

Any suggestions ?

Also ist it ok to follow the example steps mentioned in:

Just Found this on CentOS forum:

Can somebody verify that gitlab-ce-10.4.2-ce.0.el7.x86_64. can’t be installed
on CentOS 8.2 and if yes, how to migrate to latest Gitlab version/release to
later OS version/release when Gitlab backups can only be restored on same
Gitlab version ?