$ sudo do-release-upgrade -d
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [1 554 B]
Get:2 Upgrade tool [1 348 kB]
Fetched 1 350 kB in 0s (0 B/s)
authenticate 'focal.tar.gz' against 'focal.tar.gz.gpg'
extracting 'focal.tar.gz'
Reading cache
Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Hit http://se.archive.ubuntu.com/ubuntu bionic InRelease
Hit http://se.archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit http://se.archive.ubuntu.com/ubuntu bionic-backports InRelease
Hit http://security.ubuntu.com/ubuntu bionic-security InRelease
Fetched 0 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
Get:1 http://se.archive.ubuntu.com/ubuntu focal InRelease [265 kB]
Get:2 http://se.archive.ubuntu.com/ubuntu focal-updates InRelease [111 kB]
Get:3 http://se.archive.ubuntu.com/ubuntu focal-backports InRelease [98,3 kB]
Get:4 http://security.ubuntu.com/ubuntu focal-security InRelease [107 kB]
Get:5 http://se.archive.ubuntu.com/ubuntu focal/main i386 Packages [718 kB]
Get:6 http://se.archive.ubuntu.com/ubuntu focal/main amd64 Packages [970 kB]
Get:7 http://se.archive.ubuntu.com/ubuntu focal/main Translation-en [506 kB]
Get:8 http://se.archive.ubuntu.com/ubuntu focal/main amd64 DEP-11 Metadata [494 kB]
Get:9 http://se.archive.ubuntu.com/ubuntu focal/main DEP-11 48x48 Icons [98,4 kB]
Get:10 http://se.archive.ubuntu.com/ubuntu focal/main DEP-11 64x64 Icons [163 kB]
Get:11 http://se.archive.ubuntu.com/ubuntu focal/main amd64 c-n-f Metadata [29,5 kB]
Get:12 http://se.archive.ubuntu.com/ubuntu focal/restricted i386 Packages [8 112 B]
Get:13 http://se.archive.ubuntu.com/ubuntu focal/restricted amd64 Packages [22,0 kB]
Get:14 http://se.archive.ubuntu.com/ubuntu focal/restricted Translation-en [6 212 B]
Get:15 http://se.archive.ubuntu.com/ubuntu focal/restricted amd64 c-n-f Metadata [392 B]
Get:16 http://se.archive.ubuntu.com/ubuntu focal/universe amd64 Packages [8 628 kB]
Get:17 http://security.ubuntu.com/ubuntu focal-security/main i386 Packages [65,0 kB]
Get:18 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [163 kB]
Get:19 http://security.ubuntu.com/ubuntu focal-security/main Translation-en [60,1 kB]
Get:20 http://security.ubuntu.com/ubuntu focal-security/main amd64 DEP-11 Metadata [24,3 kB]
Get:21 http://security.ubuntu.com/ubuntu focal-security/main DEP-11 48x48 Icons [11,0 kB]
Get:22 http://security.ubuntu.com/ubuntu focal-security/main DEP-11 64x64 Icons [16,5 kB]
Get:23 http://security.ubuntu.com/ubuntu focal-security/main amd64 c-n-f Metadata [4 432 B]
Get:24 http://security.ubuntu.com/ubuntu focal-security/restricted i386 Packages [6 356 B]
Get:25 http://security.ubuntu.com/ubuntu focal-security/restricted amd64 Packages [29,2 kB]
Get:26 http://se.archive.ubuntu.com/ubuntu focal/universe i386 Packages [4 642 kB]
Get:27 http://security.ubuntu.com/ubuntu focal-security/restricted Translation-en [7 732 B]
Get:28 http://security.ubuntu.com/ubuntu focal-security/restricted amd64 c-n-f Metadata [324 B]
Get:29 http://security.ubuntu.com/ubuntu focal-security/universe i386 Packages [26,1 kB]
Get:30 http://security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [55,1 kB]
Get:31 http://security.ubuntu.com/ubuntu focal-security/universe Translation-en [28,4 kB]
Get:32 http://security.ubuntu.com/ubuntu focal-security/universe amd64 DEP-11 Metadata [52,3 kB]
Get:33 http://security.ubuntu.com/ubuntu focal-security/universe DEP-11 48x48 Icons [15,4 kB]
Get:34 http://security.ubuntu.com/ubuntu focal-security/universe DEP-11 64x64 Icons [22,5 kB]
Get:35 http://security.ubuntu.com/ubuntu focal-security/universe amd64 c-n-f Metadata [2 212 B]
Get:36 http://security.ubuntu.com/ubuntu focal-security/multiverse amd64 Packages [1 172 B]
Get:37 http://security.ubuntu.com/ubuntu focal-security/multiverse Translation-en [540 B]
Get:38 http://security.ubuntu.com/ubuntu focal-security/multiverse amd64 c-n-f Metadata [116 B]
Get:39 http://se.archive.ubuntu.com/ubuntu focal/universe Translation-en [5 124 kB]
Get:40 http://se.archive.ubuntu.com/ubuntu focal/universe amd64 DEP-11 Metadata [3 603 kB]
Get:41 http://se.archive.ubuntu.com/ubuntu focal/universe DEP-11 48x48 Icons [3 016 kB]
Get:42 http://se.archive.ubuntu.com/ubuntu focal/universe DEP-11 64x64 Icons [7 794 kB]
Get:43 http://se.archive.ubuntu.com/ubuntu focal/universe amd64 c-n-f Metadata [265 kB]
Get:44 http://se.archive.ubuntu.com/ubuntu focal/multiverse i386 Packages [74,7 kB]
Get:45 http://se.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages [144 kB]
Get:46 http://se.archive.ubuntu.com/ubuntu focal/multiverse Translation-en [104 kB]
Get:47 http://se.archive.ubuntu.com/ubuntu focal/multiverse amd64 DEP-11 Metadata [48,4 kB]
Get:48 http://se.archive.ubuntu.com/ubuntu focal/multiverse DEP-11 48x48 Icons [23,1 kB]
Get:49 http://se.archive.ubuntu.com/ubuntu focal/multiverse DEP-11 64x64 Icons [192 kB]
Get:50 http://se.archive.ubuntu.com/ubuntu focal/multiverse amd64 c-n-f Metadata [9 136 B]
Get:51 http://se.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages [200 kB]
Get:52 http://se.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [332 kB]
Get:53 http://se.archive.ubuntu.com/ubuntu focal-updates/main Translation-en [127 kB]
Get:54 http://se.archive.ubuntu.com/ubuntu focal-updates/main amd64 DEP-11 Metadata [204 kB]
Get:55 http://se.archive.ubuntu.com/ubuntu focal-updates/main DEP-11 48x48 Icons [48,9 kB]
Get:56 http://se.archive.ubuntu.com/ubuntu focal-updates/main DEP-11 64x64 Icons [74,3 kB]
Get:57 http://se.archive.ubuntu.com/ubuntu focal-updates/main amd64 c-n-f Metadata [8 780 B]
Get:58 http://se.archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages [29,3 kB]
Get:59 http://se.archive.ubuntu.com/ubuntu focal-updates/restricted i386 Packages [6 356 B]
Get:60 http://se.archive.ubuntu.com/ubuntu focal-updates/restricted Translation-en [7 768 B]
Get:61 http://se.archive.ubuntu.com/ubuntu focal-updates/restricted amd64 c-n-f Metadata [324 B]
Get:62 http://se.archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [163 kB]
Get:63 http://se.archive.ubuntu.com/ubuntu focal-updates/universe i386 Packages [88,4 kB]
Get:64 http://se.archive.ubuntu.com/ubuntu focal-updates/universe Translation-en [81,7 kB]
Get:65 http://se.archive.ubuntu.com/ubuntu focal-updates/universe amd64 DEP-11 Metadata [184 kB]
Get:66 http://se.archive.ubuntu.com/ubuntu focal-updates/universe DEP-11 48x48 Icons [93,4 kB]
Get:67 http://se.archive.ubuntu.com/ubuntu focal-updates/universe DEP-11 64x64 Icons [161 kB]
Get:68 http://se.archive.ubuntu.com/ubuntu focal-updates/universe amd64 c-n-f Metadata [5 404 B]
Get:69 http://se.archive.ubuntu.com/ubuntu focal-updates/multiverse i386 Packages [3 312 B]
Get:70 http://se.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 Packages [11,6 kB]
Get:71 http://se.archive.ubuntu.com/ubuntu focal-updates/multiverse Translation-en [3 892 B]
Get:72 http://se.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 DEP-11 Metadata [2 468 B]
Get:73 http://se.archive.ubuntu.com/ubuntu focal-updates/multiverse DEP-11 48x48 Icons [29 B]
Get:74 http://se.archive.ubuntu.com/ubuntu focal-updates/multiverse DEP-11 64x64 Icons [2 638 B]
Get:75 http://se.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 c-n-f Metadata [480 B]
Get:76 http://se.archive.ubuntu.com/ubuntu focal-backports/main amd64 c-n-f Metadata [112 B]
Get:77 http://se.archive.ubuntu.com/ubuntu focal-backports/universe amd64 Packages [3 092 B]
Get:78 http://se.archive.ubuntu.com/ubuntu focal-backports/universe i386 Packages [2 264 B]
Get:79 http://se.archive.ubuntu.com/ubuntu focal-backports/universe Translation-en [1 448 B]
Get:80 http://se.archive.ubuntu.com/ubuntu focal-backports/universe amd64 DEP-11 Metadata [1 972 B]
Get:81 http://se.archive.ubuntu.com/ubuntu focal-backports/universe DEP-11 48x48 Icons [2 809 B]
Get:82 http://se.archive.ubuntu.com/ubuntu focal-backports/universe DEP-11 64x64 Icons [3 943 B]
Get:83 http://se.archive.ubuntu.com/ubuntu focal-backports/universe amd64 c-n-f Metadata [224 B]
Get:84 http://se.archive.ubuntu.com/ubuntu focal-backports/multiverse amd64 c-n-f Metadata [116 B]
Get:85 http://se.archive.ubuntu.com/ubuntu focal-backports/restricted amd64 c-n-f Metadata [116 B]
Fetched 39,7 MB in 6s (6 345 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 caused by:
* Upgrading to a pre-release version of Ubuntu
This is most likely a transient problem,
please try again later.
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
attaching /var/log/dist-upgrade/main.log
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.38
ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.17
Architecture: amd64
CrashDB: ubuntu
Date: Sat Aug 29 13:51:29 2020
InstallationDate: Installed on 2020-02-15 (195 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-08-29 (0 days ago)
