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Wondering why I am getting Invalid operation install-noetic-desktop-full on my laptop

asked 2022-11-02 12:28:31 -0500

updated 2022-11-03 06:22:29 -0500

Mike Scheutzow gravatar image

I am running Ubuntu 20.04 focal 64bit on a Dell Precision 7510. Here is what I have done so far.

kbest@kbest-Precision-7510:~$ sudo apt install curl # if you haven't already installed curl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
Use 'sudo apt autoremove' to remove it.
The following additional packages will be installed:
The following NEW packages will be installed:
  curl libcurl4
0 upgraded, 2 newly installed, 0 to remove and 1 not upgraded.
Need to get 396 kB of archives.
After this operation, 1,123 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
kbest@kbest-Precision-7510:~$ sudo apt update
Hit:1 focal InRelease
Get:2 focal-updates InRelease [114 kB]                                                                                                                                
Get:3 focal-backports InRelease [108 kB]                                                                                                                              
Get:4 focal InRelease [4,679 B]                                                                                                                                        
Hit:5 xenial InRelease                                                                                                                       
Hit:6 focal InRelease                                                                                                   
Get:7 focal-security InRelease [114 kB]                             
Hit:8 focal InRelease   
Get:9 focal-updates/main Sources [528 kB]
Get:10 focal-updates/main amd64 Packages [2,196 kB]
Err:4 focal InRelease                                   
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F42ED6FBAB17C654
Get:11 focal-updates/main i386 Packages [745 kB]
Get:12 focal-updates/main amd64 DEP-11 Metadata [274 kB]
Get:13 focal-updates/main amd64 c-n-f Metadata [16.0 kB]
Get:14 focal-updates/universe amd64 DEP-11 Metadata [405 kB]
Get:15 focal-updates/multiverse amd64 DEP-11 Metadata [940 B]
Get:16 focal-backports/main amd64 DEP-11 Metadata [8,024 B]
Get:17 focal-backports/universe amd64 DEP-11 Metadata [30.5 kB]
Get:18 focal-security/main Sources [252 kB]
Get:19 focal-security/main amd64 Packages [1,821 kB]
Get:20 focal-security/main amd64 DEP-11 Metadata [40.7 kB]
Get:21 focal-security/main amd64 c-n-f Metadata [11.2 kB]
Get:22 focal-security/universe amd64 DEP-11 Metadata [92.9 kB]
Get:23 focal-security/multiverse amd64 DEP-11 Metadata [2,468 B]
Reading package lists... Done                    
W: GPG error: focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F42ED6FBAB17C654
E: The repository ' ...
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answered 2022-11-03 06:23:51 -0500

Mike Scheutzow gravatar image

updated 2022-11-03 06:25:22 -0500

Please follow the instructions provided on the wiki page:

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Asked: 2022-11-02 12:28:31 -0500

Seen: 49 times

Last updated: Nov 03 '22