CentOS - Nov 2018 - CentOS 7 package not present in Red Hat EL 7 - qt-assistant

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://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/package_manifest/chap-base-workstation-variant.
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

On Tue, Nov 27, 2018 at 5:47 AM Toralf Lund <toralf.lund at 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://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/package_manifest/chap-base-workstation-variant.
> 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

Akemi

On 28/11/18 01:24, Akemi Yagi wrote:
> On Tue, Nov 27, 2018 at 5:47 AM Toralf Lund <toralf.lund at 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_documentation_en-2Dus_red-5Fhat-5Fenterprise-5Flinux_7_html_package-5Fmanifest_chap-2Dbase-2Dworkstation-2Dvariant&d=DwICAg&c=KV_I7O14pmwRcmAVyJ1eg4Jwb8Y2JAxuL5YgMGHpjcQ&r=Q0oqxzgUp3xCCIiJDwS-RbNDndQ-KZDhj8wwveNoqU4&m=_4_0150hjtOLtAJXVP5zsLejT24DPdjAliL_UNY3-sM&s=y1xWd0RO1A06XoaFYkAGvj7ud88YK9MLgZY83UDe8Po&e=.
>> 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?

- Toralf
>
> Akemi
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