How to upgrade from ubuntu12.04 to ubuntu14.04?

Closed due to the fact that the issue is too common for participants ixSci , Barmaley Jul 3, 15 at 10:35 .

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  • What's the problem? - Regent

2 answers 2

standard procedure:

$ sudo apt-get update $ sudo apt-get upgrade $ sudo do-release-upgrade
  • An unresolvable problem occurred while calculating the upgrade. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu An unresolvable problem occurred while calculating the upgrade. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu - McMan am
  • as a result of the execution of which of the indicated commands did this message appear? - aleksandr barakin
  • if as a result of the third, then try to comment out the lines with ppa-repositories that are mentioned in /etc/apt/sources.list . Files with such references can be found using the following command: grep -ril ppa /etc/apt/sources.list* . - aleksandr barakin
  • ppa lines have already been commented out in /etc/apt/sources.list - McMan
  • and in the /etc/apt/sources.list.d directory? - aleksandr barakin

If you want to update from the console, using the command

 sudo do-release-upgrade.

Even in the section "Options - Programs and Updates" on the "Updates" tab, you can choose whether to update to a release with a long support period (LTS) or any.