It is impossible to install applications

Problem Description
it is impossible to install applications

Actual results
(I get an error with the following message:)

Error during installationE: The repository ‘http://security.debian.org/debian-security testing/updates Release’ no longer has a Release file.

Information

  • *FreedomBox version 19.1
  • Hardware: Raspberry Pi 3 b+
  • How did you install FreedomBox?: downloading testing images from https://freedombox.org

Looks like it’s now called testing-security
http://security-cdn.debian.org/debian-security/dists/

Replace testing with testing-security in all the security lines in /etc/apt/sources.list
You can also remove the lines. See FAQ

Thank you, Joseph! I will try.

Thank you again, Joseph! I corrected the lines in the sources.list. Now programs are installed! And what needs to be corrected that my Freedombox updated? (Post here: Freedombox is not updated)

The same correction might work for system updates too.
After making the above changes, did you try doing a manual update from the Update app under System?

No, I didn 't. But I can try

Three hours update via ssh - and version 20.1! :slight_smile:

1 Like

Applications are not installed again after the system upgrade. For example, when I try to install Storage, I get a message:
Error during installationE: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/

Written for Ubuntu users, but likely helpful here:

https://itsfoss.com/could-not-get-lock-error/

From the link:

You see this error because some other program is trying to update […]. When a command or application is updating the system or installing a new software, it locks the [Debian package manager] file […].

Write down what you try and if it doesn’t work, post back here.

@dgj Thank you for help! Yes, I receive a message on the Storage page that another installation or upgrade is in progress. But I 've been seeing this message for two days. If I reload the Install Storage page, it disappears. I start the installation and get a message again: Error during installationE: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/
I get similar messages when I try to install other programs.
Thanks for the link, I 'll study all the methods.