19.03.0-rc2 SHA256 Mismatch

[rcaunt]

I'm attempting to install Docker 19.03.0-rc2 on Window Server 2019 using:

Install-Package -Name docker -ProviderName DockerProvider -Verbose -RequiredVersion 19.03.0-rc2

This gives me an error:

WARNING: Cannot verify the file SHA256. Deleting the file.

I've downloaded the index file and can see the following:

 "19.03.0-rc2": {
            "date": "2019-06-06T22:48:55.696682",
            "notes": "Docker for Windows Server 2016",
            "sha256": "254378f7ac8c9277bce60952d61ea2714829331c2e73ab0abd9d962fda98ee7d",
            "size": 130197728,
            "url": "https://download.docker.com/components/engine/windows-server/19.03/docker-19.03.0-rc2.zip"
}

Following similar GitHub issues I did a BITS transfer:

Start-BitsTransfer https://download.docker.com/components/engine/windows-server/19.03/docker-19.03.0-rc2.zip -Destination C:\Source\

I then check the hash on the file and can see that it's different:

Get-FileHash -Path C:\source\docker-19.03.0-rc2.zip | Format-List


Algorithm : SHA256
Hash      : 572D7E7DC68044A85C13C46D3A5F81E7B677CC24C97524AE78F13BB03E86EC77
Path      : C:\source\docker-19.03.0-rc2.zip

I've tried copying the file into the Temp folders and installing but I get the same problem (which I expect):

Install-Package -Name docker -ProviderName DockerProvider -Verbose -RequiredVersion 19.03.0-rc2
VERBOSE: Using the provider 'DockerProvider' for searching packages.
VERBOSE: Download size: 0.04MB
VERBOSE: Free space on the drive: 40603.29MB
VERBOSE: Downloading https://download.docker.com/components/engine/windows-server/index.json to C:\Users\XXX\AppData\Local\Temp\DockerProvider\Docker_DockerSearchIndex.json
VERBOSE: About to download
VERBOSE: Finished downloading
VERBOSE: Downloaded in 0 hours, 0 minutes, 0 seconds.
VERBOSE: Performing the operation "Install Package" on target "Package 'Docker' version '19.03.0-rc2' from 'Docker'.".

The package(s) come(s) from a package source that is not marked as trusted.
Are you sure you want to install software from 'Docker'?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "N"): A
VERBOSE: Containers feature is already installed. Skipping the install.
VERBOSE: C:\Users\XXX\AppData\Local\Temp\DockerProvider\Docker-19-03-0-rc2.zip already exists. Skipping save. Use -Force to overwrite.
VERBOSE: Verifying Hash of the downloaded file.
WARNING: Cannot verify the file SHA256. Deleting the file.
VERBOSE: Hash verified!
WARNING: C:\Users\XXX\AppData\Local\Temp\DockerProvider\Docker-19-03-0-rc2.zip does not exist

[StefanScherer]

Should be fixed now. BTW: Docker 19.03.0 has been released today, so you can use the DockerMsftProvider again.

[peterlayke]

@StefanScherer Just tried this and still get the error. Server 2016 (not that it should matter).

Can confirm the version is 19.03.0

[StefanScherer]

I've tried the steps shown in https://docs.docker.com/install/windows/docker-ee/ (using the DockerMsftProvider) on a fresh Windows Server 2016 and there was no checksum mismatch. A docker info shows me the engine version 19.03.0

These are the steps I did:

PS C:\> Install-WindowsFeature Containers
PS C:\> Restart-Computer

then after the reboot

PS C:\> Install-Module DockerMsftProvider -Force
PS C:\> Find-Package docker -ProviderName DockerMsftProvider

Name                           Version          Source           Summary
----                           -------          ------           -------
Docker                         19.03.0          DockerDefault    Contains Docker EE for use with Windows Server.

PS C:\> Install-Package docker -ProviderName DockerMsftProvider
PS C:\> Start-Service docker
PS C:\> docker version
Client: Docker Engine - Enterprise
 Version:           19.03.0
 ...
Server: Docker Engine - Enterprise
 Engine:
  Version:          19.03.0
  ...

[peterlayke]

@StefanScherer thanks for looking into this but unfortunately not working for me. Anyone else confirm?

Server is brand new Core OS which hasn't been hardened yet.

[wisamaziz]

same issue here on windows 2019:

[wisamaziz]

[StefanScherer]

Well, I don't know all the details of the DockerMsftProvider, but it looks like it hasn't downloaded the zip file. When I run it with -Verbose I see the URL of the Docker-19-03-0.zip file.
Can you check the version of the package provider with Get-PackageProvider DockerMsftProvider ? I have 1.0.0.7 installed. If yours is older, try to update it.
You might check temporary files in $env:TEMP\DockerMsftProvider\ folder. Maybe there is a corrupt Docker-19-03-0.zip file in there.

Maybe adding -Force might help to force to download the zip again and then install it.

[clement-cln]

@StefanScherer I had the same issue on Windows Server 2016, and it does look like there is a corrupt file with a different SHA256 signature that's being downloaded even when using the DockerMsftProvider. The workaround I found was to:

1. Manually download the 19.03.0 version using Start-BitsTransfer -Source https://dockermsft.blob.core.windows.net/dockercontainer/docker-19-03-0.zip ( I found the url in the DockerDefault_DockerSearchIndex.json file).

2. I then checked it had the correct SHA256 signature using Get-FileHash -Path /docker-19-03-0.zip -Algorithm SHA256.

3. Next, I copied it in the C:\Users\YourUserName\AppData\Local\Temp\DockerMsftProvider folder, and renamed it to Docker-19-03-0.zip (It didn't worked with the lowercase d).

4. Finally, I ran the installation using Install-Package -Name docker -ProviderName DockerMsftProvider, and it was installed !
   I hope this works for you 😄

[StefanScherer]

Thanks @Deweytle for that detail.
This reminds me that I have to use Invoke-WebRequest -UseBasicParsing ... parameter to download files in provision scripts, containers, ...
Without this parameter Invoke-WebRequest sometimes complains with a warning and does not download the file.
So, maybe https://github.com/OneGet/MicrosoftDockerProvider/blob/developer/DockerMsftProvider.psm1#L1577 also needs this parameter?

Are you able to reproduce the problem after uninstalling the package again? Could you adjust C:\Program Files\WindowsPowerShell\Modules\DockerMsftProvider\1.0.0.7\DockerMsftProvider.psm1 and add -UseBasicParsing after Invoke-WebRequest? That would help to find a fix for the problem that many others have.

[rcaunt]

@StefanScherer Many thanks for this. I'll give your modified DockerMsftProvider a go shortly and report back.

[rcaunt]

@StefanScherer The install worked for us using 1.0.0.7 without the need for any modification.

[StefanScherer]

That's good to know @rcaunt

So the general fix is to update the package provider to the latest version available.
This can be done with this command:

Find-PackageProvider DockerMsftProvider | Install-PackageProvider

[rcaunt]

Closing now that 19.03 is GA.