Default servercore:1809 image came with en-US.

- At this moment, for Server Core 2019, you have to install language pack by yourself: https://docs.microsoft.com/pt-br/windows-server/get-started-19/rel-notes-19.
- The way to do it, is using lpksetup: https://support.microsoft.com/en-us/help/4466511/cannot-configure-language-pack-for-windows-server-2019
- But lpksetup.exe crashes when running on container

I've described step by step how to reproduce lpksetup.exe error on container, **producing crash report logs** that I've extracted from container.
All here: https://github.com/sanguedemonstro/docker-playground/issues/1#issuecomment-453078549

With extra details here: https://github.com/sanguedemonstro/docker-playground/blob/master/langpack-on-servercore2019.md#why-am-i-playing-around-this-subject

But I'm not able to understand logs or fix windows base image. And I can't open support ticket once I'm not MS partner.

So if anyone could help I'm here to support.

Thanks!

Today's Windows Updates are horrible and very unreliable and Windows Updates are one of the most riskiest operations. Microsoft should take the inspiration from Linux environment as Linux implementation of OS updates is informative, transparent to administrators, it's very nice to work with and administrators have all relevant info in case of any issue or update management. And Linux updates are very reliable.

But in case of Windows Server updates they are a nightmare. Using sconfig provides only very basic information, when updates are downloaded with no information is provided about progress, about downloading process, details about downloaded packages etc. The installation is the same issue - black box hiding all info about the prrocess and it is very hard to work with as nobody knows if the system is stucked or what is happening inside and administrators must just guess what to do. No information is provided by Windows Server and admins can do just wait and pray.

And finally admins must pray if the updates will install correctly and not harming their production OSes as this is happening in Windows world frequently.

Microsoft must put Windows Updates as one of the top priorities as this is crucial functionality for every OS from point view as security, maintenance, reliability etc. Now this is a nightmare and one of the most unreliable services in Windows OS which makes Windows Server very risky environment to work with.

If you use Hyper V Live Migration from Server 2012 R2 (not sure if any other OS) to migrate to Server 2019. The migration works but as soon as you shut down the VM and try to start it again, will no longer boot. It turns on/off 3 times and remains off.

I also did cluster to cluster migration in VMM and this is the same behaviour.

It looks like it is due the migrated MAC address, if I set the VM to get a new dynamic mac address it seems to work. If I set it to it's original mac address as a static it will no longer boot.

It would appears I'm not the only one experiencing the issue, I did a fresh install promote it to a Windows Server 2016 Forest and Domain AD. After the reboot I realize the Start Menu settings cannot be changed, next I found that whole load of permission error whenever I try to launch anything that requires Administrator privilege including Server Manager, Settings and Control Panel. After that I went to check the permission settings of the C drive and Windows folder as compared to previous version of Windows Server, "Authenticated Users" is no longer part of the default permissions. This is a fresh install of various edition from VLSC to MSDN to retail to trial download every version media and edition use present the same issue.

Today (1/22 PST), Microsoft released two preview udpates for RS5 - KB4476976 and KB4481031. Thease updates are D release. But Preview of Cumulative Update for .NET Framework (KB4481031) was automatically installed to some Windows 10 ver 1809 and Windows Server 2019. This behavior is not assumed. I did not click "Check for updates". KB4481031 says

"Install this update
To download and install this update, go to Settings > Update & Security > Windows Update and select Check for updates.
This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website." (https://support.microsoft.com/ja-jp/help/4481031/)

Server Core's sconfig also detect KB4481031. (not detect 4476976)

The previous Preview CU for .Net Frameworks (KB4469041) was also the same behavior.