I was trying to setup a backup server with Ubuntu 18.04 Server
user@host:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
but I ran into a dependency error even thou the dependencies that fail are installed.
user@host:~$ sudo apt-get install amanda-server amanda-common xinetd gawk gnuplot readline-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
readline-common is already the newest version (7.0-3).
gawk is already the newest version (1:4.1.4+dfsg-1build1).
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
amanda-common : Depends: adduser but it is not going to be installed
Depends: debconf (>= 0.5) but it is not going to be installed or
debconf-2.0
Depends: update-inetd but it is not going to be installed
Depends: perl (>= 5.22.1-3) but it is not going to be installed
Depends: perlapi-5.22.1
Depends: libcurl3 (>= 7.16.2) but it is not going to be installed
amanda-server : Depends: libcurl3 (>= 7.16.2) but it is not going to be installed
cron : Depends: adduser but it is not going to be installed
Depends: libpam-runtime (>= 1.0.1-11) but it is not going to be installed
gnuplot : Depends: gnuplot5-qt but it is not going to be installed or
gnuplot5-x11 but it is not going to be installed or
gnuplot5-nox
init-system-helpers : Depends: perl-base (>= 5.20.1-3) but it is not going to be installed
libgd3 : Depends: libfontconfig1 (>= 2.11.94) but it is not going to be installed
libpam0g : Depends: debconf (>= 0.5) but it is not going to be installed or
debconf-2.0
libssl1.0.0 : Depends: debconf (>= 0.5) but it is not going to be installed or
debconf-2.0
nginx-common : Depends: debconf (>= 0.5) but it is not going to be installed or
debconf-2.0
python3 : PreDepends: python3-minimal (= 3.6.5-3ubuntu1) but it is not going to be installed
Depends: python3.6 (>= 3.6.5-2~) but it is not going to be installed
Depends: libpython3-stdlib (= 3.6.5-3ubuntu1) but it is not going to be installed
python3-service-identity : Depends: python3-openssl but it is not going to be installed
wireless-crda : Depends: crda (>= 1.1.1-1ubuntu2)
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
I did notice missing packages: update-inetd, perlapi, gnuplot5-qt. But I'm not sure if installing them will fix the missing dependency error on the installed packages too.
How can I install it on Ubuntu Server 18.04?
