Not necessarily asking for a solution but just the meaning of what I'm dealing with:admin@hostname:/etc/apache2/mods-available$ sudo apt-get install libapache2-mod-monoReading package lists... DoneBuilding dependency treeReading state information... Doneadmin@hostname:/etc/apache2/mods-available$ sudo apt-get remove libapache2-mod-monoReading package lists... DoneBuilding dependency treeReading state information... DonePackage 'libapache2-mod-mono' is not installed, so not removed0 upgraded, 0 newly installed, 0 to remove and 191 not upgraded.If the package isn't being installed why am I not receiving an error? If I do an apt-cache search the package name shows up and the apt logs don't even mention me trying to install this package.For more background I'm running debian 8.1 (Jessie) on AWS. I was following these instructions: http://www.mono-project.com/docs/getting-started/install/linux/I ran the following commands:sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EFecho deb http://download.mono-project.com/repo/debian wheezy main | sudo tee /etc/apt/sources.list.d/mono-xamarin.listecho deb http://download.mono-project.com/repo/debian wheezy-apache24-compat main | sudo tee -a /etc/apt/sources.list.d/mono-xamarin.listecho deb http://download.mono-project.com/repo/debian wheezy-libjpeg62-compat main | sudo tee -a /etc/apt/sources.list.d/mono-xamarin.listsudo apt-get updateWithout an error I'm not really sure what to do. I've never seen apt-get do this before. Help?EDIT:Here's the policy information:admin@hostname:~$ apt-cache policyPackage files: 100 /var/lib/dpkg/status     release a=now 500 http://download.mono-project.com/repo/debian/ wheezy-libjpeg62-compat/main amd64 Packages     release v=7.0,o=XamarinLibJpeg62Compat,a=stable-libjpeg62-compat,n=wheezy-libjpeg62-compat,l=Xamarin-Stable-libjpeg62-compat,c=main     origin download.mono-project.com 500 http://download.mono-project.com/repo/debian/ wheezy-apache24-compat/main amd64 Packages     release v=7.0,o=XamarinApache24Compat,a=stable-apache24-compat,n=wheezy-apache24-compat,l=Xamarin-Stable-apache24-compat,c=main     origin download.mono-project.com 500 http://download.mono-project.com/repo/debian/ wheezy/main amd64 Packages     release v=7.0,o=Xamarin,a=stable,n=wheezy,l=Xamarin-Stable,c=main     origin download.mono-project.com 500 http://cloudfront.debian.net/debian/ jessie-updates/main Translation-en 500 http://cloudfront.debian.net/debian/ jessie-updates/main amd64 Packages     release o=Debian,a=stable-updates,n=jessie-updates,l=Debian,c=main     origin cloudfront.debian.net 500 http://security.debian.org/ jessie/updates/main Translation-en 500 http://security.debian.org/ jessie/updates/main amd64 Packages     release v=8,o=Debian,a=stable,n=jessie,l=Debian-Security,c=main     origin security.debian.org 500 http://cloudfront.debian.net/debian/ jessie/main Translation-en 500 http://cloudfront.debian.net/debian/ jessie/main amd64 Packages     release v=8.2,o=Debian,a=stable,n=jessie,l=Debian,c=main     origin cloudfront.debian.netPinned packages:admin@hostname:~$ apt-cache policy libapache2-mod-monolibapache2-mod-mono:  Installed: (none)  Candidate: 3.12-0xamarin2+compat1  Version table:     3.12-0xamarin2+compat1 0        500 http://download.mono-project.com/repo/debian/ wheezy-apache24-compat/main amd64 Packages     3.12-0xamarin2 0        500 http://download.mono-project.com/repo/debian/ wheezy/main amd64 Packages
Linux Noob: apt-get not installing package but no error?
apt
I did some more digging and dmesg was reporting some segfaults coming from aptitude.[ 7384.810518] apt-get[6440]: segfault at 7f5adb08a648 ip 00007f5adb08a648 sp 00007ffdf4b9d618 error 15[ 7433.569688] apt-get[6450]: segfault at 7f153041d648 ip 00007f153041d648 sp 00007ffc6bfb29d8 error 15[ 7624.614647] apt-get[6493]: segfault at 7fae19437318 ip 00007fae19437318 sp 00007ffebd660c78 error 15[ 7647.248347] apt-get[6505]: segfault at 7fcbdedc2318 ip 00007fcbdedc2318 sp 00007ffef87ad688 error 15[ 7726.721028] apt-get[6539]: segfault at 7f0d0bc0b848 ip 00007f0d0bc0b848 sp 00007ffdb6f55588 error 15[ 7872.903745] apt-get[6547]: segfault at 7f69c0caf848 ip 00007f69c0caf848 sp 00007ffcc83296c8 error 15[ 8009.062830] apt-get[6561]: segfault at 7fe658208848 ip 00007fe658208848 sp 00007ffeeac5e398 error 15[ 8033.035303] apt-get[6567]: segfault at 7ff32b0fa848 ip 00007ff32b0fa848 sp 00007ffd55d04cd8 error 15[12626.030754] apt-get[6679]: segfault at 7faa21fa5848 ip 00007faa21fa5848 sp 00007fffb0badc28 error 15Faheem asked what happens if I try to install a package I've already installed so I tried mono-devel. I had already installed this package but I did so prior to adding some of the package sources I mentioned above. (I know, I know. I said I was a noob.)Anyway after mono-devel finished installing again I tried installing libapache2-mod-mono again and it worked as expected.