Where can I go to start learning what my terminal is trying to say to me

Question

this is an example that I'm running across trying to install sublime text 2

Err:7 https://download.sublimetext.com apt/stable/ InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F57D4F59BD3DF454

You could try copying and pasting that exact text into google — GammaGames, Nov 15 '19 at 21:51
Welcome to Ask Ubuntu. There is nothing in what you have posted that mentions your release of Ubuntu, and thus your question could be off-topic. — guiverc, Nov 15 '19 at 21:51
ps: I'd use the 571 upvoted answer. (upvote value may have changed when you see it) — guiverc, Nov 15 '19 at 21:52

score 3 · Answer 1 · answered Nov 15 '19 at 21:54

3

Generally, most of the time the messages in the terminal are pretty self explaining.

Except sometimes they are not. What I do is google for the message and pretty much every time there is a hit.

The problem you have above can be explained like that.

When you try to download a package, some mechanism has to make sure that you really got what you tried to download, and that the download is not tampered.

A way to do this is to sign a package with a cryptographic key. This is what was done with your package. In order to verify the download is correct, you need a public key - which is stated in the message.

You have to install the key on your machine.

For sublime it is listed on their site at: https://www.sublimetext.com/docs/3/linux_repositories.html

answered Nov 15 '19 at 21:54

Jürgen Gmach

695
5
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I normally do the same though sometimes I get a hit but for another installation. For example, I'm trying to install MicroStack. it says just to wait 15-20 minutes depending on internet speed. I've been waiting an hour and I use ethernet. So what is these numbers and why am I waiting so long? I couldn't find a hit on this. – Nobody Nov 15 '19 at 22:19
$ sudo microstack.init --auto
2019-11-15 17:13:47,003 - microstack_init - INFO - Setting up ipv4 forwarding... 2019-11-15 17:13:47,386 - microstack_init - INFO - Waiting for RabbitMQ to start ... Waiting for 10.20.20.1:5672 2019-11-15 17:13:47,411 - microstack_init - INFO - RabbitMQ started! 2019-11-15 17:13:47,412 - microstack_init - INFO - Configuring RabbitMQ ... 2019-11-15 17:13:54,781 - microstack_init - INFO - RabbitMQ Configured! 2019-11-15 17:13:55,002 - microstack_init - INFO - Waiting for MySQL server to start ... Waiting for 10.20.20.1:3306
– Nobody Nov 15 '19 at 22:20
@Nobody If you paste that text into your Question and on newlines above and below it put three backticks (to the left of 1 on a US keyboard) the formatting will make look MUCH more understandable. – K7AAY Nov 16 '19 at 00:58
Which one is a backtick a` or a~.....I'm thinking the first. – Nobody Nov 16 '19 at 04:35

Where can I go to start learning what my terminal is trying to say to me

1 Answers1