I posted my problem on January 11, 2017, with no response or solution. Updating problem seems only if you had encrypted your hard drive during the original installation. There hasn’t been any problem on some of my computers that was not encrypted. So I was wondering instead of normal updating via Discover, what if you be better off using the terminal and login as root, and then do a full update.
Example:
sudo -i
then
KDEneon:~# sudo apt full-upgrade

I wonder you there is a less chance of something breaking this way?

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sudo -i

you are root
no longer need to sudo
first

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apt update

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apt upgrade
apt full-upgrade or apt dist-upgrade

Which one is more safe for updating the system?
apt full-upgrade
or apt dist-upgrade?

fredhoud wrote:Which one is more safe for updating the system?
apt full-upgrade
or apt dist-upgrade?

apt-get dist-upgrade and apt full-upgrade perform the same function, the latter is just the updated form though either one can be used.

claydoh wrote:

fredhoud wrote:Which one is more safe for updating the system?
apt full-upgrade
or apt dist-upgrade?

apt-get dist-upgrade and apt full-upgrade perform the same function, the latter is just the updated form though either one can be used.

`apt dist-upgrade` is a valid command that does precisely the same as `apt full-upgrade`. Both `apt` and `apt-get` are the same thing under the hood.

`pkcon` is what you want to use on neon systems actually as plasma in parts uses packagekit, so using apt directly can in fact not work if packagekit is currently doing something.

I do not know what is better, I use dist-upgrade. We have two with the status of their upgrade, the situation is only the first upgrade of the same generation and the second is the upgrade to a new generation of LTS. I read in the local forum people had problems and lost data with the encrypted partition when they did upgrade to a new generation of LTS.