Unable to update FTL with pihole -up; sudo apt-get update also did not resolve it

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1

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Expected Behaviour:

Attempted to update the pihole with pihole -up

normally it updates well; I have tried updating pihole multiple time already but the FTL update kept on failing.

Actual Behaviour:

  [i] Checking for updates...
  [i] Pi-hole Core:	up to date
  [i] Web Interface:	up to date
  [i] FTL:		update available

  [i] FTL out of date, it will be updated by the installer.

  [✓] Root user check

        .;;,.
        .ccccc:,.
         :cccclll:.      ..,,
          :ccccclll.   ;ooodc
           'ccll:;ll .oooodc
             .;cll.;;looo:.
                 .. ','.
                .',,,,,,'.
              .',,,,,,,,,,.
            .',,,,,,,,,,,,....
          ....''',,,,,,,'.......
        .........  ....  .........
        ..........      ..........
        ..........      ..........
        .........  ....  .........
          ........,,,,,,,'......
            ....',,,,,,,,,,,,.
               .',,,,,,,,,'.
                .',,,,,,'.
                  ..'''.

  [✗] Update local cache of available packages
  Error: Unable to update package cache. Please try "sudo apt-get update"
  Unable to complete update, please contact Pi-hole Support

Debug Token:

https://tricorder.pi-hole.net/prj9UJdH/

2

What was the output of this command?

4

Get:1 http://deb.debian.org/debian buster-backports InRelease [46.7 kB]
Hit:2 http://archive.raspberrypi.org/debian buster InRelease
Hit:3 http://raspbian.raspberrypi.org/raspbian buster InRelease
Err:1 http://deb.debian.org/debian buster-backports InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 648ACFD622F3D138 NO_PUBKEY 0E98404D386FA1D9
Reading package lists... Done
W: GPG error: http://deb.debian.org/debian buster-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 648ACFD622F3D138 NO_PUBKEY 0E98404D386FA1D9
E: The repository 'http://deb.debian.org/debian buster-backports InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

5

See this post that provided a solution for what appears to be the same problem.

6

The solution works! Thank you very much.

Side note though in the command line I changed the keys in the "sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys _______" to the NO_PUBKEY's I had.

7

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