Hi punk, I haven't digested all this yet, I am only going from #3, so see if the following helps, that I put together off-forum:
I'll throw you a few questions and observations and let us know if they help:
1 As Nick said “What OS?”
Is it under Rebecca KDE you are experiencing the problems? Or if not, what?
2 What version of gdebi are you running (check your Package Manager)? The version that shipped with my Mate Qiana 17 was 0.9.5.3, but https://launchpad.net/ubuntu/+source/gdebi have it that 0.9.5.5 is out now.
3 also note in that article that
gdebi: simple tool to view and install deb files - GNOME GUI
gdebi-core: simple tool to install deb files
gdebi-kde: simple tool to install deb files - KDE GUI
… there appear to be Gnome & KDE versions
My disclaimer here is that I have not (yet) used gdebi myself, so I am just “throwing it out there”.
4 ”Using "sudo" is running as root, right? and therefore I should be careful what I run with sudo?”
First part – No (well, sort of), 2nd part Yes!
At Terminal, Command
reveals the su manual (191 lines), and
reveals the sudo manual (a longer read at 553 lines). The su manual also has interesting links to other references such as
The use of sudo and su allow the user certain root privileges, and superuser privileges, but they do not actually put you completely at root.
One way of getting to root is as follows
sudo su -
… and in my case, this results as follows:
From then, until you type and enter Exit
...you reallyARE root.
I could say “Kids, don't try this at home”, but more appropriate might be “Exercise with caution”.
Hope this helps, and let us know how you fare.