I can not install nor upgrade anything  'can not get lock var/lib/dpkg/lock-frontend. it is held by the process 2469 ...'  could you suggest what to do to ?
5068
I'm trying to run this command in the terminal:  sudo apt install software-properties-common   This is the error message I get:  E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)   E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend),     is another process using it?
68758
I am getting error while using sudo apt-get upgrade stating:  dpkg: error processing libgfortran3:amd64 (--configure):   package libgfortran3:amd64 is not ready for configuration   cannot configure (current status `half-installed') Errors were encountered while processing:   libgfortran3:amd64 E: Sub-process /usr/bin/dpkg returned an error code (1)   It does not seem to block the installation/upgrade other applications. I believe this problem arose due to direct shutting down of my PC while the application was being upgraded.  How can I fix this?
38406
Whenever I try to update an app, I get the error in the question title. I am also unable to view my installed apps. I've already tried wiping the store's data and cache, and removing and readding my account. Nothing helps.   I'm using a Droid Turbo running 4.4.4. Anyone know what the problem is?
29916
My software center in Ubuntu 14:04 wont start anymore. Error that I received is below in screen shot. I'm new in Ubuntu. So, somebody can give me step by step instructions to solve the issues that you would be much more appreciated. Thank you in advance.. :)
107115
Yesterday I had some problem with /var/lib/dpkg/lock during update. I knew that in such cases removing lock file could solve problem. So I tried to do it, but by mistake I removed all DPKG directory. So now I cannot do any update, install, upgrade and so on.  I try via Software Center, Terminal, Qapt, Synaptic. None of these work because all of them do such operations via dpkg. And as my dpkg is corrupted, so I have problem.   How can I completely restore DPKG? I have downloaded dpkg_1.16.1.2ubuntu7_amd64.deb (I use 64bit Ubuntu 12.04) file, but what to do with it in terminal? Simple double-clicking on .deb opens Software Center and you already know, it doesn't work.  P.S. Terminal gives such error:   dpkg: error: cannot read info directory: No such file or directory E: Sub-process /usr/bin/dpkg returned an error code (2)
9300
On googling this error it seems that a lot of people are having this issue.  apt-get upgrade hangs at 0% [waiting for headers] apt-get install apache2 hangs at 0% [waiting for headers]. Some apt-get commands are working, but only certain packages.  Any ideas? I don't think this is an issue with slow repos because I've had it up for a long while and it hasn't budged from 0%. I have edited sources.list but I removed the lines I added when this issue presented itself and it hasn't made a difference.  Any clues would be really useful.
45597
I just installed Ubuntu 12.10 (amd64), and want to install a recent version of MySQL 5.6.  If possible, I would like to install (not upgrade) it the "Debian Way' (i.e., using apt-get or dpkg).
114855
I tried to install jdk/jre:  ben@ubuntu:~$ sudo apt-get install openjdk-7-jre-headless   However, I got this message:   E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?   I cannot get git to install either, so I don't think it is a problem with the specific package I selected. What that error means, and how to deal with it?
34343
When trying to update I get an error message   E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.    But when I try to run this command the screen goes completely black and nothing happens.  From what I can tell it is trying to install Linux headers when this happens.  This is a fresh install of less than a week old. At this time I can not install anything new or update anything. How do I solve this issue?  Log File:  12:50:16 systemd-journal: Journal stopped 12:50:16 kernel: Sending SIGTERM to remaining processes... 12:50:16 kernel: Syncing filesystems and block devices. 12:50:16 kernel: printk: systemd-shutdow: 78 output lines suppressed due to ratelimiting 12:50:16 systemd: Shutting down. 12:50:15 NetworkManager: &lt;info&gt;  [1565373015.4510] exiting (success) 12:50:15 systemd: Stopped Raise network interfaces. 12:50:15 NetworkManager: &lt;info&gt;  [1565373015.4124] caught SIGTERM, shutting down normally. 12:50:15 systemd: Stopping Network Manager... 12:50:15 pulseaudio: E: [alsa-sink-HDMI 1] alsa-sink.c: Error opening PCM device hdmi:0,1: No such file or directory 12:50:15 systemd: Stopped D-Bus User Message Bus. 12:50:15 systemd-logind: Removed session 2. 12:50:15 systemd: Stopping D-Bus User Message Bus... 12:50:15 gdm-x-session: (II) Server terminated successfully (0). Closing log file. 12:50:14 systemd: Stopped ACPI event daemon. 12:50:14 (sd-pam): pam_unix(systemd-user:session): session closed for user gdm 12:50:14 systemd: gdm.service: Succeeded. 12:50:14 gdm3: Child process -1517 was already dead. 12:50:14 systemd: Started Exit the Session. 12:50:14 gdm3: Child process -1517 was already dead. 12:50:14 systemd: systemd-exit.service: Succeeded. 12:50:14 gdm-x-session: (II) systemd-logind: releasing fd for 13:65 12:50:14 systemd: Stopped sandboxed app permission store. 12:50:14 systemd-logind: Removed session c2. 12:50:14 gdm-x-session: (II) systemd-logind: releasing fd for 13:64 12:50:14 systemd: Stopping User Manager for UID 123... 12:50:14 gdm-x-session: (II) Server terminated successfully (0). Closing log file. 12:50:13 gdm3: Freeing conversation 'gdm-launch-environment' with active job 12:50:13 systemd: Stopped Network Manager Wait Online. 12:50:13 dbus-daemon: [system] Activation via systemd failed for unit 'accounts-daemon.service': Refusing activation, D-Bus is shutting down. 12:50:13 systemd: Stopped target Network is Online. 12:50:13 gdm3: Tried to look up non-existent conversation gdm-launch-environment 12:50:13 gdm-x-session: (II) systemd-logind: releasing fd for 13:68 12:50:13 avahi-daemon: avahi-daemon 0.7 exiting. 12:50:13 dbus-daemon: [system] Activating via systemd: service name='org.freedesktop.Accounts' unit='accounts-daemon.service' requested by ':1.478' (uid=0 pid=3680 comm="gdm-session-worker [pam/gdm-launch-environment] " label="unconfined") 12:50:13 systemd: Stopped CUPS Scheduler. 12:50:13 gdm3: Failed to list cached users: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name :1.7 was not provided by any .service files 12:50:13 systemd: Stopped PackageKit Daemon. 12:50:13 udisksd: udisks daemon version 2.8.2 exiting 12:50:13 systemd: Stopped Accounts Service. 12:50:13 apport:    ...done. 12:50:13 systemd: Stopped LSB: Record successful boot for GRUB. 12:50:13 dbus-daemon: [session uid=1000 pid=3647] AppArmor D-Bus mediation is enabled 12:50:13 systemd: Stopping Authorization Manager... 12:50:13 avahi-daemon: Leaving mDNS multicast group on interface lo.IPv4 with address 127.0.0.1. 12:50:13 systemd: Stopped target Host and Network Name Lookups. 12:50:13 avahi-daemon: Leaving mDNS multicast group on interface enp7s0.IPv4 with address 192.58.0.150. 12:50:13 systemd-logind: Session c2 logged out. Waiting for processes to exit. 12:50:13 systemd: Stopping CUPS Scheduler... 12:50:13 avahi-daemon: Leaving mDNS multicast group on interface enp7s0.IPv6 with address fe80::fd7:6a47:d5ba:6c3c. 12:50:13 systemd-logind: Session 2 logged out. Waiting for processes to exit.
121855
When I try to install I get this error:  dpkg: unrecoverable fatal error, aborting:  files list file for package `fonts-tlwg-kinnari' contains empty filename E: Sub-process /usr/bin/dpkg returned an error code (2)   And the installation is aborted.  I'm using Ubuntu 14.04
82717
Not a problem, but have been seeing questions recently of people not being offered upgrade from 18.04 to 20.04.  I thought these upgrades were offered back in June.  I upgraded to 20.04 from 19.10 and this was offered back in May.  Imagine that different versions paths have different schedules, but google does not help explaining(that I found).  Does someone know the schedules?
41245
I haven't seen this message from Update Manager before, and I have not been able to google up any info.  What will be installed when I click Install?  (Clicking "Description of Update" got me nothing...)
18593
This is exact content from my sources.list:  #  # deb cdrom:[Debian GNU/Linux 2016.1 _Kali-rolling_ - Official Snapshot amd64 LIVE/INSTALL Binary 20160830-11:29]/ kali-rolling contrib main non-free #deb cdrom:[Debian GNU/Linux 2016.1 _Kali-rolling_ - Official Snapshot amd64 LIVE/INSTALL Binary 20160830-11:29]/ kali-rolling contrib main non-free   I couldn't install the Synaptic package manager and was told to modify sources.list.  I googled a lot and added some repos into it and ran update and upgrade command only to see Kali crash... I had to recover it.  Please mention the exact content that should be there to ensure that Kali Linux works.
49774
This is the error I get when I open the software center. I've tried rebooting and running sudo apt-get update but I see no improvement. It worked earlier but I don't know what went wrong since then. I'm using Ubuntu 16.04 final release on a Dell Inspiron 15R. Any advice will be appreciated. Thanks in advance.  EDIT: The problem magically solved itself without me doing anything special (or maybe inadvertently doing something, I don't know). So I'd still like to get to the root of this.
47033
I want to know the exact process that is using the lock file. I don't want to fix it, but just to know what is my system doing. How can I find out?  For example, this message:  E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?   Again, I just want to identify the process using it, not how to fix it.
12852
After doing a man apt-get and cursory Google search it's not clear how I find new programs to install (from the internet) using apt-get (which is amazingly powerful and simple coming from another Linux distro).  I'm using Ubuntu Server 8.04 LTS (an inherited system used for some random work), so no GUI.  Anyone have quick advice here?
50553
I use Ubuntu Studio 16.04 LTS, 64 bit, into 3 desktop PC (Intel i5 and i7) and 4 laptops (Intel Pentium). All with 8 GB of RAM.  Since about a week ago, I've been getting the following message each time I try to update/upgrade the system:  https://download.01.org/gfx/ubuntu/16.04/main xenial InRelease" has no Public Key. It isn't safe to use this kind of repository.   I tried to remove that repository (which I don't remember adding) with the terminal command:  sudo add-apt-repository -r &lt;repository to  remove&gt;   But, even though the system seems to perform that action, the repository is used next time I type:  sudo apt-get update   This repository isn't visible in Synaptic Software Manager and/or Ubuntu Software Center.  How can I fix it?