Ubuntu Upgrade – Fix ‘Please Install All Available Updates’ Error When Upgrading from 18.04 to 20.04

18.0420.04do-release-upgradeupdates

I've been trying to upgrade my version of Ubuntu 18.04 to 20.04. I've run all the steps from updating and upgrading both apt and apt-get, changing the settings in update manager and all of the steps described in this link. Yet I keep getting the error:

Please install all available updates for your release before upgrading.

Is there something special about trying to upgrade from 18.04 to 20.04 that's causing this error? Do I maybe need to update to 19.04 first?

EDIT: I just noticed something that might be important. When I run sudo apt-get update I get the following notice at the end of the output:

The following packages have been kept back:
  colord gimagereader python-sane sane simple-scan
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.

Might that be causing the issue?

Best Answer

sequence from 18.04 to 20.04

sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo apt autoremove
sudo do-release-upgrade -d -f DistUpgradeViewGtk3

Follow onscreen instruction. Good luck!

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