Docker is not installing

Container @ PLCnext Technology
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Hello, 
I'm trying to install docker following the PLCNext tutorials. However, I am getting this error. Can anybody help me? Please. Thank you very much.
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[https://forum.plcnext-community.net/uploads/6Y5WM069AUOD/image.png</a></p>

Hello, \nI'm trying to install docker following the PLCNext tutorials. However, I am getting this error. Can anybody help me? Please. Thank you very much.\n<\/pre>

I already have an SD card inside the PLC device.
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The PLC requires a connection to the internet in order to download the docket package.
Can you ping download.docker.com from the device?

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ping is ok, but the problem persists.
Does docker not work for this ARM version?
If so, how to solve this problem?

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You can see the wget command in the setup script. Please try executing that command on the command line of the device, separate to the script. Something like:

admin@axcf2152:~$ wget -S --spider https://download.docker.com/linux/static/stable/armhf/docker-19.03.8.tgz
Connecting to download.docker.com (3.162.140.87:443)
wget: note: TLS certificate validation not implemented
 HTTP/1.1 200 OK
 Content-Type: application/x-tar
 Content-Length: 58315969
 Connection: close
 Date: Mon, 27 May 2024 07:20:29 GMT
 Last-Modified: Wed, 26 Jul 2023 13:48:54 GMT
 ETag: "5ab8eedb2123b6595a5d2f6ce4a17d3e-7"
 Server: AmazonS3
 X-Cache: Miss from cloudfront
 Via: 1.1 7b540706cf1b282b4057541f2ba17f20.cloudfront.net (CloudFront)
 X-Amz-Cf-Pop: DUB56-P2
 X-Amz-Cf-Id: O3HV_i-dVrmYOBmDX7ijYJrZO2nsWjyqBVxHZzLaDH3hyL4C4NGxLQ==
remote file exists

(this shows the response I get from my device).

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Hi , Thank you for your contact. I ran this command, as shown in the figure below. But I still don’t understand how this can help me. How to install docker packages using linux commands for this PLC.

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Thanks for your help.

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The shell script simply executes a series of commands on the device.
The shell script is in plain text, so it’s possible to see the commands that are executed by the script.
If you execute each of those commands in turn, on the command line, it should be possible to see which command causes the problem.
The command I suggested is the one that usually causes problems, because it involves a downloading a file from the internet. But perhaps that isn’t the problem in your case.
If you can run the wget command without the two options, it should download the archive to the device. You should then be able to execute the remaining commands in the script file to install docker.