Просмотр кода страницы Ubuntu - Как обновиться с 20.04 до 22.04 (LTS) через ssh

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=== Ubuntu - Как обновиться с 20.04 до 22.04 (LTS) через ssh ===

Протестировано 02.05.2022:
 # apt update && apt upgrade -y
 # apt install update-manager-core
 # reboot

 # vi /etc/apt/sources.list
 deb http://de.archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
 #deb-src http://de.archive.ubuntu.com/ubuntu impish main restricted universe multiverse
 deb http://de.archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
 #deb-src http://de.archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
 deb http://de.archive.ubuntu.com/ubuntu jammy-security main restricted universe multiverse
 #deb-src http://de.archive.ubuntu.com/ubuntu jammy-security main restricted universe multiverse
 deb http://de.archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
 #deb-src http://de.archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse

 # do-release-upgrade
 # reboot

Опции
        -d, --devel-release
              If using the latest supported release, upgrade to the development release


Результат:
 # lsb_release -a
 No LSB modules are available.
 Distributor ID: Ubuntu
 Description:    Ubuntu 22.04 LTS
 Release:        22.04
 Codename:       jammy