私はUbuntu OSが初めてです。バージョン14.04から16.04にアップグレードしようとしています。しかし、最新版をアップグレードすることはできません。
以下はアップグレード中にメッセージが表示されたので、sources.listに変更を加えました。 http://repogen.simplylinux.ch 。
Could not calculate the 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
しかしsources.listファイルは正しく更新されていません。ファイルは次のようになります。
###### Ubuntu Main Repos
deb http://in.archive.ubuntu.com/ubuntu/ xenial main
deb-src http://in.archive.ubuntu.com/ubuntu/ xenial main
###### Ubuntu Update Repos
deb http://in.archive.ubuntu.com/ubuntu/ xenial-updates main
deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-updates main
:wq
:wq!
:wq
そして私のオリジナルのsources.listファイルはこんな感じでした:
# deb cdrom:[Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.2)]/ trusty main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://in.archive.ubuntu.com/ubuntu/ trusty main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse #Added by software-properties
## Major bug fix updates produced after the final release of the
## distribution.
deb http://in.archive.ubuntu.com/ubuntu/ trusty-updates main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse #Added by software-properties
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ trusty universe
deb http://in.archive.ubuntu.com/ubuntu/ trusty-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://in.archive.ubuntu.com/ubuntu/ trusty multiverse
deb http://in.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse #Added by software-properties
deb http://in.archive.ubuntu.com/ubuntu/ trusty-security main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse #Added by software-properties
deb http://in.archive.ubuntu.com/ubuntu/ trusty-security universe
deb http://in.archive.ubuntu.com/ubuntu/ trusty-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu trusty partner
deb-src http://archive.canonical.com/ubuntu trusty partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu trusty main
deb-src http://extras.ubuntu.com/ubuntu trusty main
# deb http://www.rabbitmq.com/debian/ stable main
# deb http://downloads.sourceforge.net/project/sonar-pkg/deb trusty main
deb http://in.archive.ubuntu.com/ubuntu/ trusty-proposed restricted main universe multiverse
アップグレード時および不正請求に対する問題
また、あなたのソースリストを完全に変更するような外部のスクリプトは避けてください。そのジェネレータは、Ubuntuの異なるバージョン用のものかもしれません。あなたの情報源を決して上書きせず、現在のリストに追加するだけです。
—
xR34P3Rx
sudo apt-get dist-upgrade