Question

3

Authentication error when trying to upgrade from 11.10 to 12.04

rated 0 times [ 3] [ 0] / answers: 1 / hits: 3374 / 2 Years ago, sun, august 21, 2022, 4:46:56

I wrote :

~$ do-release-upgrade

and the system says:

  Checking for a new ubuntu release   

   Get:1 Upgrade tool signature [198 B]                                              

   Get:2 Upgrade tool [1551 kB]                                                   

   Fetched 1551 kB in 6s (167 kB/s)                                                

   extracting 'precise.tar.gz'   

   authenticate 'precise.tar.gz' against 'precise.tar.gz.gpg'   

   exception from gpg: GnuPG exited non-zero, with code 2   

   Debug information: 



   gpg: Signature made Thu 11 Oct 2012 07:47:10 AM EET using DSA key ID 437D05B5  

   gpg: can't open `/etc/apt/trusted.gpg'  

   gpg: keydb_search failed: file open error       

   gpg: Can't check signature: public key not found



   Authentication failed   

   Authenticating the upgrade failed. There may be a problem with the network or with the server.

Please help me!

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epypian

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answered 2 Years ago irtuallyefu · Accepted Answer

When trying to do any administrative task like installing an application or upgrading the system, you will always need to have administrative rights. This can be achieved in several ways, 2 of them are:

To actually BE the root user (Not recommended. Too much power in your hands. /godmode 1)

Prefix any command line with the command sudo.

In your case I recommend doing the second option. And to be sure, do a clean upgrade like this (This way you have less chance to come up with a bug while doing the upgrade, before it or after the upgrade).

sudo apt-get update && sudo apt-get upgrade

After everything is done then execute the following:

sudo apt-get dist-upgrade

This way you can see if the system is ok before doing the version upgrade.