On 11/28/18 2:59 AM, Toralf Lund wrote:
On 28/11/18 01:24, Akemi Yagi wrote:
On Tue, Nov 27, 2018 at 5:47 AM Toralf Lund toralf.lund@pgs.com wrote:
I'm using CentOS 7 for development of software that is sometimes used on Red Hat Enterprise Linux 7. I conjunction with an update of one of the applications, I asked some Red Hat users to install the Qt 4 Assistant application via the qt-assistant package (which is used by a "help" function in our software.) It seemed like there was no such package in the Red Hat package set, however, and I also see no mention of it in "package manifests" like https://urldefense.proofpoint.com/v2/url?u=https-3A__access.redhat.com_docum....
Yet I can install the package from the "base" repository on my CentOS machine.
Questions: Isn't CentOS base supposed to contain exactly the same packages as Red Hat Enterprise, except in some special cases that relate to distribution information, installation sources etc.? Does anyone know what's going on with the specific package I mention above?
- Toralf
The qt-assistant package is available in RHEL-7:
$ sudo yum list qt-assistant
qt-assistant.x86_64 1:4.8.7-2.el7 rhel-7-server-optional-rpms
Right. I notice the word "optional" here - I guess this is where some of the confusion comes from, as the Red Hat doc mentioned above does not say anything about optional packages, it just mentions base and "supplementary" channels. Evidently, optional rpms are not enabled on the system mentioned earlier...
Also, this must mean that CentOS "base" is not the same as Red Hat "base". Right?
CentOS has no need for Workstation, Server, Client, Compute Node designations .. nor the need for optional branches.
Those are all things that are in place to create a different price point (Server vs. Client vs. Workstation vs. Computer Node .. those cost different amounts and contain different package sets of various sizes, more stuff costs more). CentOS is Free .. CentOS therefore contains all of those things.
The optional RPMs come with a different level of support .. CentOS has NO support .. so CentOS contains ALL optional RPMs.
So, in short .. the file manifest for CentOS contains all the RPMs from rebuild the RHEL source code that is included in the Workstation, Server, Client, Compute Node designations .. including the optional channels.