Upgrade Ubuntu to the last release

Currently the last release of Ubuntu is 19.10 (Eoan Ermine).

We can upgrade from the standard release, or from the LTS. To be sure to upgrade in the release-upgrades configuration file we must check the last line. This line must be:

Prompt=normal

We can update this file with the commands:

$ sudo su

# sed -i -E ‘s/Prompt=(never|lts)/Prompt=normal/g’ “/etc/update-manager/release-upgrades”

Alternatively you have to edit the release-upgrades file in the /etc/update-manager folder, adding the right line.

Then execute:

# apt-get update

# apt-get upgrade

# apt-get dist-upgrade

# do-release-upgrade

Answer yes to the request of upgrade. You will be informed with a prompt about the necessary time.

Voilà tout !

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