1

I installed some packages, to see a list of the installed packages see here. I walked away from my desk, locked the computer and returned to a black screen, before logging in.

I searched Google and found this telling ,me to restart a service, so I ran sudo service lightdm --full-restart it opened to my login screen, input my password, and logged into a black screen with a Komodo icon on it and my mouse cursor. So I searched some more and found this and this. Tried both of those and nothing happened.

So I'm assuming that I'm going to have to reinstall the Ubuntu desktop, or run from a backup. Only issue I'm having when running sudo apt-get install ubuntu-desktop --reinstall is a bunch of unable to correct problems, you have held broken packages:

The following packages have unmet dependencies:
  ubuntu-desktop : Depends: software-center but it is not going to be installed
                   Depends: ubuntu-sso-client but it is not going to be installed
                   Depends: unity but it is not going to be installed
                   Recommends: bluez-alsa but it is not going to be installed
                   Recommends: empathy but it is not going to be installed
                   Recommends: firefox but it is not going to be installed
                   Recommends: gnome-disk-utility but it is not going to be installed
                   Recommends: gnome-orca but it is not going to be installed
                   Recommends: landscape-client-ui-install but it is not going to be installed
                   Recommends: pulse-audio-module-x11 but it is not going to be installed
                   Recommends: python3-aptdaemon.pkcompat but it is not going to be installed
                   Recommends: totem-mozilla but it is not going to be installed
                   Recommends: ttf-punjabi-fonts but it is not going to be installed
                   Recommends: vino but it is not going to be installed
E: Unable to correct problems, you have held broken packages

These all sound pretty important, and like they should probably be installed already, so my question is pretty simple, what in the heck am I suppose to do now? How can I fix this successfully?

13aal
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  • Wow what a mess, not really sure why you thought reinstalling the desktop would be of any help. At any rate run sudo apt-get update && sudo apt-get install -f If you still have problems post any error messages. – Panther Jul 12 '17 at 19:18
  • @bodhi.zazen I was out of ideas lol – 13aal Jul 12 '17 at 19:23
  • @bodhi.zazen dpkg: error processing package send snapd (--configure) also subprocess installed post-installation script returned error exit status 1 next line Errors were encountered while processing: snapd – 13aal Jul 12 '17 at 19:25

3 Answers3

3

First clear cache by sudo apt-get autoremove && sudo apt-get clear cache and then type sudo apt-get update && sudo apt-get upgrade. I think this will definitely gonna work.

Dev
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  • I'll give it a shot here in a few minutes, thank you. – 13aal Jul 12 '17 at 20:04
  • apt-get upgrade is, like the name suggests, for upgrading installed packages. It will not effect the troubleshooting of these dpkg installing errors. Also someone already suggested apt-get update in the comments of the question. – ADDB Jul 12 '17 at 20:34
  • First command errors were encountered while processing snapd sub-process /usr/bin/dpkg returned error code (1) second command dpkg: error processing package send snapd (--configure) also subprocess installed post-installation script returned error exit status 1 next line Errors were encountered while processing: snapd – 13aal Jul 12 '17 at 20:34
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    I think you have problem with package snapd. I will also faced same problem but with postfix package. At that time i removed the package postfix and this will helped for me. – Dev Jul 12 '17 at 20:51
  • I don't think that's it especially since it's literally telling me that dpkg is failing with error code 1 – 13aal Jul 12 '17 at 21:54
  • First you have to look at your both errors. They are encountered because of snapd package. So you have to do something about snapd. – Dev Jul 13 '17 at 07:06
  • I think removing or reinstalling will be the best option. You can follow this https://askubuntu.com/questions/877543/snapd-package-manager-problem-in-ubuntu-16-04-how-to-resolve – Dev Jul 13 '17 at 07:18
  • @IamDev That's what I ended up doing, it's installing right now – 13aal Jul 13 '17 at 11:13
0

For anyone who finds this thread and is having a similar problem. I ended up just rebooting into the Linux installer from a USB and reinstalling Ubuntu over the top of the corrupted installation. I still am not sure why this happened, what caused it, or how to fix it. I will update this answer if I happen to find any more information on it.

13aal
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-2

Replaced the sources.list with new one

apt-get dist-upgrade

and then

apt-get install ubuntu-desktop

now it works fine

Hareesh Kumar
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  • What is new one? What did you replace it with? Please use proper formatting (comment again if you want to know more) – Pandian Le Oct 05 '20 at 18:16