What does it suggest that a plan is "set to by hand mounted?"
It suggests that a plan was by hand picked and also not instantly by an additional plans or a meta - plans. The distinction it, that the latter can be vehicle - got rid of, when the plan that caused this install is not any longer existing (after an upgrade, or due to the fact that it was gotten rid of). A by hand picked plan needs to not be gotten rid of this way.
This has no influence on the capacity to update plan when such upgrades are readily available or the alerts thereof.
If you install a plan, all plans that that plan relies on are additionally mounted. As an example if you install the plan vlc, it will instantly install vlc - nox. The instantly mounted plans (in this instance, vlc - nox) are set as "instantly mounted" - - if you remove vlc, the plan supervisor will certainly recommend to remove vlc - nox too (capacity will certainly do this instantly, if you make use of apt - get you can remove all instantly mounted plans with
Currently, if you do
apt-get install vlc-nox you will certainly get the message that vlc - nox is currently readied to "by hand mounted", i.e. the plan supervisor currently assumes that you desire that plan especially and also not simply mounted it due to the fact that vlc required it. If you remove vlc, vlc - nox will certainly consequently not be instantly gotten rid of.
This does not influence updates at all.
You can make use of
sudo apt-mark auto $PACKAGES to mark plans as instantly being mounted once more, if you mistakenly note them as by hand mounted.
Instantly mounted plans can be gotten rid of making use of
apt-get autoremove (or making use of comparable procedures, as an example using Synaptic).