Fixed upstream:
https://gitlab.com/libosinfo/osinfo-db/commit/4a45fde98cf2aa80fabd5a11c97a3f4e13d33d9c

Created attachment 1572787 [details]
screenshot of win2019 installation

Description of problem:
Incorrectly detecting the system version of win_2019 with microsoft windows 2016 on virt-manager install GUI.

Version-Release number of selected component (if applicable):
libosinfo-1.1.0-3.el7.x86_64
virt-manager-1.5.0-6.el7.noarch

How reproducible:
100%

Steps to reproduce:
1.Launch virt-manager.
2.Click 'create a new virtual machine' button-> choose 'local install media'-> 'forward'.
3.Choose a win_2019 iso for ISO image -> choose 'automatically detect operating system based on install media'.

Result:detect OS type with Windows and Version with Mircosoft Windows Server 2016.
4.Forward and make settings as default until step5 of 5.

Result:default name of new guest is win2k16 and storage is /var/lib/libvirt/images/win2k16.qcow2.
5.Check osinfo on host.
5.1 # osinfo-query os |grep win2k
 win2k                | Microsoft Windows 2000                             | 5.0      | http://microsoft.com/win/2k             
 win2k12              | Microsoft Windows Server 2012                      | 6.3      | http://microsoft.com/win/2k12           
 win2k12r2            | Microsoft Windows Server 2012 R2                   | 6.3      | http://microsoft.com/win/2k12r2         
 win2k16              | Microsoft Windows Server 2016                      | 10.0     | http://microsoft.com/win/2k16           
 win2k19              | Microsoft Windows Server 2019                      | 10.0     | http://microsoft.com/win/2k19           
 win2k3               | Microsoft Windows Server 2003                      | 5.2      | http://microsoft.com/win/2k3            
 win2k3r2             | Microsoft Windows Server 2003 R2                   | 5.2      | http://microsoft.com/win/2k3r2          
 win2k8               | Microsoft Windows Server 2008                      | 6.0      | http://microsoft.com/win/2k8            
 win2k8r2             | Microsoft Windows Server 2008 R2                   | 6.1      | http://microsoft.com/win/2k8r2          
5.2 #virt-manager --debug
[Fri, 24 May 2019 11:32:29 virt-manager 7756] DEBUG (create:2329) Starting OS detection thread for media=/root/Downloads/en_windows_server_2019_updated_march_2019_x64_dvd_2ae967ab.iso
[Fri, 24 May 2019 11:32:29 virt-manager 7756] DEBUG (storagebrowse:66) Closing storage browser
[Fri, 24 May 2019 11:32:29 virt-manager 7756] DEBUG (distroinstaller:283) installer.detect_distro returned=win2k16
[Fri, 24 May 2019 11:32:29 virt-manager 7756] DEBUG (create:2407) Finished UI OS detection.

Actual results:
win2019 is listed in osinfo-db but version of win_2019 is detecting incorrectly with Mircosoft Windows Server 2016/win2k16.

Expected results:
version of win_2019 should be detect as win2k19.

Additional info:
screenshot https://bugzilla.redhat.com/attachment.cgi?id=1572787

(In reply to ysu from comment #6)
> Description of problem:
> Incorrectly detecting the system version of win_2019 with microsoft windows
> 2016 on virt-manager install GUI.

There's absolutely nothing that could be done from libosinfo side to prevent this to happen.
Both Windows 2016 and 2019 ISOs have exactly the same volume-id. I've discussed this with Pino when he originally submitted the patch. One this that could be done would be to add the volume-size for *each* of the Windows 2k19 ISOs (including different languages), but this doesn't scale. :-/

In the end we agreed on having an "almost empty" entry for Windows 2019 as libguestfs would already benefit from that.

(In reply to Fabiano Fidêncio from comment #7)
> (In reply to ysu from comment #6)
> > Description of problem:
> > Incorrectly detecting the system version of win_2019 with microsoft windows
> > 2016 on virt-manager install GUI.
> 
> There's absolutely nothing that could be done from libosinfo side to prevent
> this to happen.
> Both Windows 2016 and 2019 ISOs have exactly the same volume-id. I've
> discussed this with Pino when he originally submitted the patch. One this
> that could be done would be to add the volume-size for *each* of the Windows
> 2k19 ISOs (including different languages), but this doesn't scale. :-/
> 
> In the end we agreed on having an "almost empty" entry for Windows 2019 as
> libguestfs would already benefit from that.

Btw, sorry, we should have made it clear in the BZ that this would happen (as we did in the commit message).
For historic purposes, here's the link for the commit: https://gitlab.com/libosinfo/osinfo-db/commit/4a45fde98cf2aa80fabd5a11c97a3f4e13d33d9c and it mentions:

"This new OS does not include any <media>, and this is done on purpose:
sadly, the ISOs have the same metadata (like Volume ID, etc) as win2k16
(Windows Server 2016), and thus it is not possible to distinguish them.
Theoretically, using the volume size can help with the detection;
however, the Windows ISOs have different supported languages, and there
is no way to specify the volume size for each language.

Regardless, having this OS is still useful for users to match an OS with
an osinfo ID."

I agree with you that nothing we can do about the same metadata between win2019 and win2016.But thank you so much for such a quick response!

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2019:2045