I'm trying to install Stardog on my linux system for some projects but curl isn't working and this is what happens with the documentation

FrostBite.

6/15/24, 9:37 PM

documentation: https://docs.stardog.com/install-stardog/linux-installation

$ curl http://packages.stardog.com/stardog.gpg.pub | apt-key add
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
E: This command can only be used by root.
100  1760  100  1760    0     0    581      0  0:00:03  0:00:03 --:--:--   581
curl: (23) Failed writing body
aliza@ingestrom:~$ sudo curl http://packages.stardog.com/stardog.gpg.pub | apt-key add
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
E: This command can only be used by root.
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1760  100  1760    0     0   1212      0  0:00:01  0:00:01 --:--:--  1212
curl: (23) Failed writing body

1 + 4

package-management

apt

repository

vmware

curl

waltinator

6/15/24, 9:54 PM

The "`E: This command can only be used by root.`" error lines show that you should `sudo apt-key add` instead of `apt-key add`. The other error "`curl: (23) Failed writing body`" is because `apt-key` has exited, and is no longer listening to the pipe, and `curl` noticed.

FrostBite.

6/16/24, 1:11 PM

Even if I use the sudo command I get the same error message

waltinator

6/16/24, 6:10 PM

Comments are designed for US to ask YOU questions about your Question. You should [Edit] your question to add information. By updating your Question, and using the formatting buttons, you make all the information available to new readers. People shouldn't have to read a long series of comments to get the whole story. AskUbuntu is a Question and Answer site, not a conversation site. If you have an update, [edit] your Question. If you have a new question, see [Ask].

waltinator

6/16/24, 6:55 PM

[Edit] your question and show us how you "use the sudo command".

Score:1

Ubuntu

vidarlo

6/16/24, 9:19 PM

aliza@ingestrom:~$ sudo curl http://packages.stardog.com/stardog.gpg.pub | apt-key add

This runs curl as root. But curl only connects to a website (http://packages.stardog.com/stardog.gpg.pub), and outputs the content of that URL to standard output (stdout). That doesn't require any special permissions.

However, the pipe is a separator - you're running two commands; not one. First curl is executed, and stdout of curl is piped to stdin (standard input) of apt-key. The latter command needs root privileges.

The command that complains it has to be ran as root (E: This command can only be used by root.) is apt-key.

Change your command to

curl http://packages.stardog.com/stardog.gpg.pub | sudo apt-key add

+ 0

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EN: I'm trying to install Stardog on my linux system for some projects but curl isn't working and this is what happens with the documentation

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