Public bug reported:

$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo do-release-upgrade
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [1,554 B]                                          
                                                     
Get:2 Upgrade tool [1,329 kB]                                                   
                                                     
Fetched 1,331 kB in 0s (0 B/s)                                                  
                                                     
authenticate 'eoan.tar.gz' against 'eoan.tar.gz.gpg' 
extracting 'eoan.tar.gz'

Reading cache

Checking package manager
Reading package lists... Done
Building dependency tree        
Reading state information... Done

Livepatch security updates are not available for Ubuntu 19.10. If you 
upgrade, Livepatch will turn off. 

Continue [yN] y
Hit http://download.opensuse.org/repositories/home:/strycore/xUbuntu_18.04 ./ 
InRelease                                              
Hit http://linux.teamviewer.com/deb stable InRelease                            
                                                     
Hit http://linux.avocode.com/apt all InRelease                                  
                                                     
Get:1 
http://download.opensuse.org/repositories/home:/CZ-NIC:/datovka-latest/xUbuntu_18.04
  InRelease [1,561 B]                      
Ign http://dl.google.com/linux/chrome/deb stable InRelease                      
                                                     
Hit http://ppa.launchpad.net/bluetooth/bluez/ubuntu bionic InRelease            
                                                     
Hit https://download.docker.com/linux/ubuntu bionic InRelease                   
                                                     
Hit https://download.mono-project.com/repo/ubuntu vs-bionic InRelease           
                                                     
Hit http://security.ubuntu.com/ubuntu bionic-security InRelease                 
                                                     
Get:2 https://dl.yarnpkg.com/debian stable InRelease [17.1 kB]                  
                                                     
Hit http://repository.spotify.com stable InRelease                              
                                                     
Hit https://packages.microsoft.com/repos/vscode stable InRelease                
                                                     
Hit http://dl.google.com/linux/chrome/deb stable Release                        
                                                     
Hit http://ppa.launchpad.net/fontforge/fontforge/ubuntu bionic InRelease        
                                                     
Hit http://cz.archive.ubuntu.com/ubuntu bionic InRelease                        
                                                     
Hit http://ppa.launchpad.net/gezakovacs/ppa/ubuntu bionic InRelease             
                                                     
Hit http://cz.archive.ubuntu.com/ubuntu bionic-updates InRelease                
                                                     
Hit http://ppa.launchpad.net/linrunner/tlp/ubuntu bionic InRelease              
                                                     
Hit http://cz.archive.ubuntu.com/ubuntu bionic-backports InRelease              
                                                     
Hit http://ppa.launchpad.net/openrazer/stable/ubuntu bionic InRelease           
                                                     
Hit https://download.sublimetext.com apt/stable/ InRelease                      
                                                     
Hit http://ppa.launchpad.net/paulo-miguel-dias/mesa/ubuntu bionic InRelease     
                                                     
Hit http://ppa.launchpad.net/polychromatic/stable/ubuntu xenial InRelease       
                                                     
Err 
http://download.opensuse.org/repositories/home:/CZ-NIC:/datovka-latest/xUbuntu_18.04
  InRelease                                  
  The following signatures couldn't be verified because the public key is not 
available: NO_PUBKEY 74062DB36A1F4009                  
Hit http://ppa.launchpad.net/teejee2008/ppa/ubuntu bionic InRelease             
                                                     
Hit http://ppa.launchpad.net/ultradvorka/ppa/ubuntu bionic InRelease            
                                                     
Hit https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease     
                                                     
Hit http://ppa.launchpad.net/yannubuntu/boot-repair/ubuntu bionic InRelease     
                                                     
Hit http://ppa.launchpad.net/yubico/stable/ubuntu bionic InRelease              
                                                     
Err https://dl.yarnpkg.com/debian stable InRelease                              
                                                     
  The following signatures were invalid: EXPKEYSIG 23E7166788B63E1E Yarn 
Packaging <[email protected]>                                     
Fetched 1,561 B in 0s (0 B/s)                                                   
                                                     
Reading package lists... Done    
Building dependency tree          
Reading state information... Done

Checking for installed snaps

Calculating snap size requirements

Updating repository information

Third party sources disabled

Some third party entries in your sources.list were disabled. You can 
re-enable them after the upgrade with the 'software-properties' tool 
or your package manager. 

To continue please press [ENTER]

Get:1 http://security.ubuntu.com/ubuntu eoan-security InRelease [97.5 kB]       
                                                     
Get:2 http://cz.archive.ubuntu.com/ubuntu eoan InRelease [255 kB]               
                                                     
Get:3 http://cz.archive.ubuntu.com/ubuntu eoan-updates InRelease [97.5 kB]      
                                                     
Get:4 http://cz.archive.ubuntu.com/ubuntu eoan-backports InRelease [88.8 kB]    
                                                     
Get:5 http://security.ubuntu.com/ubuntu eoan-security/main i386 Packages [109 
kB]                                                    
Get:6 http://security.ubuntu.com/ubuntu eoan-security/main amd64 Packages [162 
kB]                                                   
Get:7 http://security.ubuntu.com/ubuntu eoan-security/main Translation-en [59.6 
kB]                                                  
Get:8 http://security.ubuntu.com/ubuntu eoan-security/main amd64 DEP-11 
Metadata [3,224 B]                                           
Get:9 http://security.ubuntu.com/ubuntu eoan-security/main DEP-11 48x48 Icons 
[584 B]                                                
Get:10 http://security.ubuntu.com/ubuntu eoan-security/main DEP-11 64x64 Icons 
[3,690 B]                                             
Get:11 http://security.ubuntu.com/ubuntu eoan-security/main amd64 c-n-f 
Metadata [1,940 B]                                           
Get:12 http://security.ubuntu.com/ubuntu eoan-security/restricted amd64 
Packages [11.7 kB]                                           
Get:13 http://security.ubuntu.com/ubuntu eoan-security/restricted 
Translation-en [1,740 B]                                           
Get:14 http://security.ubuntu.com/ubuntu eoan-security/restricted amd64 c-n-f 
Metadata [116 B]                                       
Get:15 http://security.ubuntu.com/ubuntu eoan-security/universe i386 Packages 
[92.5 kB]                                              
Get:16 http://cz.archive.ubuntu.com/ubuntu eoan/main i386 Packages [950 kB]     
                                                     
Get:17 http://security.ubuntu.com/ubuntu eoan-security/universe amd64 Packages 
[98.4 kB]                                             
Get:18 http://security.ubuntu.com/ubuntu eoan-security/universe Translation-en 
[46.3 kB]                                             
Get:19 http://security.ubuntu.com/ubuntu eoan-security/universe amd64 DEP-11 
Metadata [4,484 B]                                      
Get:20 http://security.ubuntu.com/ubuntu eoan-security/universe DEP-11 48x48 
Icons [7,588 B]                                         
Get:21 http://security.ubuntu.com/ubuntu eoan-security/universe DEP-11 64x64 
Icons [9,785 B]                                         
Get:22 http://security.ubuntu.com/ubuntu eoan-security/universe amd64 c-n-f 
Metadata [2,072 B]                                       
Get:23 http://security.ubuntu.com/ubuntu eoan-security/multiverse amd64 
Packages [1,172 B]                                           
Get:24 http://security.ubuntu.com/ubuntu eoan-security/multiverse i386 Packages 
[1,340 B]                                            
Get:25 http://security.ubuntu.com/ubuntu eoan-security/multiverse 
Translation-en [632 B]                                             
Get:26 http://security.ubuntu.com/ubuntu eoan-security/multiverse amd64 c-n-f 
Metadata [116 B]                                       
Get:27 http://cz.archive.ubuntu.com/ubuntu eoan/main amd64 Packages [969 kB]    
                                                     
Get:28 http://cz.archive.ubuntu.com/ubuntu eoan/main Translation-en [505 kB]    
                                                     
Get:29 http://cz.archive.ubuntu.com/ubuntu eoan/main amd64 DEP-11 Metadata [510 
kB]                                                  
Get:30 http://cz.archive.ubuntu.com/ubuntu eoan/main DEP-11 48x48 Icons [95.4 
kB]                                                    
Get:31 http://cz.archive.ubuntu.com/ubuntu eoan/main DEP-11 64x64 Icons [173 
kB]                                                     
Get:32 http://cz.archive.ubuntu.com/ubuntu eoan/main amd64 c-n-f Metadata [29.7 
kB]                                                  
Get:33 http://cz.archive.ubuntu.com/ubuntu eoan/restricted i386 Packages [9,904 
B]                                                   
Get:34 http://cz.archive.ubuntu.com/ubuntu eoan/restricted amd64 Packages [16.3 
kB]                                                  
Get:35 http://cz.archive.ubuntu.com/ubuntu eoan/restricted Translation-en 
[5,196 B]                                                  
Get:36 http://cz.archive.ubuntu.com/ubuntu eoan/restricted amd64 c-n-f Metadata 
[364 B]                                              
Get:37 http://cz.archive.ubuntu.com/ubuntu eoan/universe amd64 Packages [8,798 
kB]                                                   
Get:38 http://cz.archive.ubuntu.com/ubuntu eoan/universe i386 Packages [8,686 
kB]                                                    
Get:39 http://cz.archive.ubuntu.com/ubuntu eoan/universe Translation-en [5,198 
kB]                                                   
Get:40 http://cz.archive.ubuntu.com/ubuntu eoan/universe amd64 DEP-11 Metadata 
[3,587 kB]                                            
Get:41 http://cz.archive.ubuntu.com/ubuntu eoan/universe DEP-11 48x48 Icons 
[2,843 kB]                                               
Get:42 http://cz.archive.ubuntu.com/ubuntu eoan/universe DEP-11 64x64 Icons 
[8,121 kB]                                               
Get:43 http://cz.archive.ubuntu.com/ubuntu eoan/universe amd64 c-n-f Metadata 
[271 kB]                                               
Get:44 http://cz.archive.ubuntu.com/ubuntu eoan/multiverse i386 Packages [141 
kB]                                                    
Get:45 http://cz.archive.ubuntu.com/ubuntu eoan/multiverse amd64 Packages [153 
kB]                                                   
Get:46 http://cz.archive.ubuntu.com/ubuntu eoan/multiverse Translation-en [111 
kB]                                                   
Get:47 http://cz.archive.ubuntu.com/ubuntu eoan/multiverse amd64 DEP-11 
Metadata [51.1 kB]                                           
Get:48 http://cz.archive.ubuntu.com/ubuntu eoan/multiverse DEP-11 48x48 Icons 
[7,665 B]                                              
Get:49 http://cz.archive.ubuntu.com/ubuntu eoan/multiverse DEP-11 64x64 Icons 
[229 kB]                                               
Get:50 http://cz.archive.ubuntu.com/ubuntu eoan/multiverse amd64 c-n-f Metadata 
[9,424 B]                                            
Get:51 http://cz.archive.ubuntu.com/ubuntu eoan-updates/main i386 Packages [184 
kB]                                                  
Get:52 http://cz.archive.ubuntu.com/ubuntu eoan-updates/main amd64 Packages 
[238 kB]                                                 
Get:53 http://cz.archive.ubuntu.com/ubuntu eoan-updates/main Translation-en 
[90.6 kB]                                                
Get:54 http://cz.archive.ubuntu.com/ubuntu eoan-updates/main amd64 DEP-11 
Metadata [75.3 kB]                                         
Get:55 http://cz.archive.ubuntu.com/ubuntu eoan-updates/main DEP-11 48x48 Icons 
[10.4 kB]                                            
Get:56 http://cz.archive.ubuntu.com/ubuntu eoan-updates/main DEP-11 64x64 Icons 
[18.7 kB]                                            
Get:57 http://cz.archive.ubuntu.com/ubuntu eoan-updates/main amd64 c-n-f 
Metadata [2,932 B]                                          
Get:58 http://cz.archive.ubuntu.com/ubuntu eoan-updates/restricted amd64 
Packages [11.7 kB]                                          
Get:59 http://cz.archive.ubuntu.com/ubuntu eoan-updates/restricted 
Translation-en [1,740 B]                                          
Get:60 http://cz.archive.ubuntu.com/ubuntu eoan-updates/restricted amd64 c-n-f 
Metadata [112 B]                                      
Get:61 http://cz.archive.ubuntu.com/ubuntu eoan-updates/universe amd64 Packages 
[138 kB]                                             
Get:62 http://cz.archive.ubuntu.com/ubuntu eoan-updates/universe i386 Packages 
[132 kB]                                              
Get:63 http://cz.archive.ubuntu.com/ubuntu eoan-updates/universe Translation-en 
[65.2 kB]                                            
Get:64 http://cz.archive.ubuntu.com/ubuntu eoan-updates/universe amd64 DEP-11 
Metadata [30.0 kB]                                     
Get:65 http://cz.archive.ubuntu.com/ubuntu eoan-updates/universe DEP-11 48x48 
Icons [19.0 kB]                                        
Get:66 http://cz.archive.ubuntu.com/ubuntu eoan-updates/universe DEP-11 64x64 
Icons [36.9 kB]                                        
Get:67 http://cz.archive.ubuntu.com/ubuntu eoan-updates/universe amd64 c-n-f 
Metadata [2,556 B]                                      
Get:68 http://cz.archive.ubuntu.com/ubuntu eoan-updates/multiverse i386 
Packages [1,340 B]                                           
Get:69 http://cz.archive.ubuntu.com/ubuntu eoan-updates/multiverse amd64 
Packages [1,172 B]                                          
Get:70 http://cz.archive.ubuntu.com/ubuntu eoan-updates/multiverse 
Translation-en [632 B]                                            
Get:71 http://cz.archive.ubuntu.com/ubuntu eoan-updates/multiverse amd64 c-n-f 
Metadata [112 B]                                      
Get:72 http://cz.archive.ubuntu.com/ubuntu eoan-backports/main amd64 c-n-f 
Metadata [108 B]                                          
Get:73 http://cz.archive.ubuntu.com/ubuntu eoan-backports/restricted amd64 
c-n-f Metadata [116 B]                                    
Get:74 http://cz.archive.ubuntu.com/ubuntu eoan-backports/universe i386 
Packages [2,932 B]                                           
Get:75 http://cz.archive.ubuntu.com/ubuntu eoan-backports/universe amd64 
Packages [2,932 B]                                          
Get:76 http://cz.archive.ubuntu.com/ubuntu eoan-backports/universe 
Translation-en [1,324 B]                                          
Get:77 http://cz.archive.ubuntu.com/ubuntu eoan-backports/universe amd64 DEP-11 
Metadata [7,764 B]                                   
Get:78 http://cz.archive.ubuntu.com/ubuntu eoan-backports/universe DEP-11 48x48 
Icons [29 B]                                         
Get:79 http://cz.archive.ubuntu.com/ubuntu eoan-backports/universe DEP-11 64x64 
Icons [29 B]                                         
Get:80 http://cz.archive.ubuntu.com/ubuntu eoan-backports/universe amd64 c-n-f 
Metadata [188 B]                                      
Get:81 http://cz.archive.ubuntu.com/ubuntu eoan-backports/multiverse amd64 
c-n-f Metadata [116 B]                                    
Fetched 43.7 MB in 6s (7,223 kB/s)                                              
                                                     

Checking package manager
Reading package lists... Done    
Building dependency tree          
Reading state information... Done

Calculating the changes

Calculating the changes

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

This was likely caused by: 
* Unofficial software packages not provided by Ubuntu 
Please use the tool 'ppa-purge' from the ppa-purge 
package to remove software from a Launchpad PPA and 
try the upgrade again. 

If none of this applies, then please report this bug using the 
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If 
you want to investigate this yourself the log files in 
'/var/log/dist-upgrade' will contain details about the upgrade. 
Specifically, look at 'main.log' and 'apt.log'. 


Restoring original system state

Aborting
Reading package lists... Done    
Building dependency tree          
Reading state information... Done

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.37
ProcVersionSignature: Ubuntu 5.3.0-42.34~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.12
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Mon Mar 23 22:06:36 2020
InstallationDate: Installed on 2018-09-01 (569 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-03-23 (0 days ago)
mtime.conffile..etc.update-manager.release-upgrades: 2020-03-23T21:58:08.927429

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic dist-upgrade

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1868625

Title:
  can't upgrade from 18.04 to 19.10

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1868625/+subscriptions

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