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Questions tagged [16.04]

Sixth LTS (Long Term Support) release of Ubuntu, code-named "Xenial Xerus". Released on 21st April, 2016. Reached End of Standard Support (ESM) on April 30, 2021. Questions specific to 16.04 are no longer supported here and are supposed to be closed as off-topic.

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1k views

Network not working - Ubuntu 16.04

I am on Ubuntu 16.04. I recently upgraded using these commands: sudo apt-get update sudo apt-get upgrade sudo apt-get autoremove sudo apt-get clean After that I just restarted my system. After ...
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0answers
26 views

How to upgrade Ubuntu 16.04.4 to a specific version of 18.04.x (not the latest)?

Currently running 16.04.4 LTS Want to upgrade to 18.04.3 LTS I haven't been able to find any good information on how to do this but I know others have either found the right way or installed using ISO ...
4
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1answer
9k views

Recovering a partition with no valid superblocks

My system had these partitions: DellUtility Windows 7 Ubuntu 14.04 (64bit) - extended /home - extended virtualbox - extended swap - extended (A Dell box with Ubuntu dual-boot and seperate home / "...
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2answers
2k views

No Vim Syntax Highlighting in Ubuntu 16

I just installed Ubuntu 16.04.2 and I'm not getting any syntax highlighting. I can turn syntax on/off via the :syntax command, but it has no effect on cpp and js files (haven't tested other files). ...
0
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1answer
5k views

upgrade ICU version ubuntu 16.04

I have a problem installing symfony3 in php7, nginx and ubuntu 16.04, i have this error: intl ICU version installed on your system is outdated (55.1) and does not match the ICU data bundled with ...
3
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1answer
3k views

Apache2 not able to restart in Ubuntu 16.04

I installed Apache2 on my Ubuntu machine. At first it was working fine as I started and restarted many times in the course. But now suddenly when I tried to restart it gave me this error message: [.......
4
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2answers
1k views

How do I enable window snapping in Ubuntu 16.04 Mate?

In the Cinnamon desktop, Super+left, for example, will snap the active window to the left side of the screen. Can the same behavior be enabled in Mate on Ubuntu 16.04? From searching, all I can find ...
4
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3answers
13k views

Ubuntu after upgrade - ssh exchange failed

I have a little bit problem after upgrading Ubuntu from 14.04 to 16.04. I've try to estabilish SSH connections with some servers trough SSH but after upgrade in some cases I have these output: Unable ...
23
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6answers
37k views

How to run openconnect with username and password in a line in the terminal?

I use openconnect in Ubuntu 16.04 terminally, when I want to run it, I need to enter three phases: "yes/no" "username" "password" How can I bypass above phases using openconnect in a line (e.g. ...
3
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1answer
10k views

Ubuntu 16.04 Dual monitor doesn't work after booting

I've done an Ubuntu 16.04 fresh installation and now my dual monitors don't work after booting. This is what happens during booting: When I boot, the main monitor works and asks for my HD password (I'...
6
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2answers
4k views

Problem with timedatectl and network time synchronisation in 16.04

I have a dual-boot machine with Windows and Xubuntu 16.04. Because of Windows, the hardware clock is set to local time, so I had to use timedatectl to make Xubuntu aware of that after the upgrade to ...
7
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3answers
6k views

How to delete logs automatically after a certain time and restart the process that fills up the log file?

Server is Ubuntu 16.04. I have a process running with nohup that logs into a local file. This file gets big enough to consume 100% disk space. To resolve this I have to kill the process first and then ...
1
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0answers
4k views

Slow boot, udisks2.service takes most of the time

So I recently installed ubuntu on one of my SSDs and the boot time is horrendous. So I look around at different threads and I find some people saying to checking "systemd-analyze blame" and well there'...
0
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1answer
241 views

Cannot boot Ubuntu 16.04 on a mining rig with 6 GPUs, AMD 970 motherboard

I can run 6+ GPUs mining rigs successfully on any Intel motherboard under Ubuntu 16.04, however with AMD 970 motherboards, only 5 GPUs work. If I install the 6th GPU, the system boots, then I can see ...
12
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5answers
9k views

Updating Zoom in the terminal

Like many people around the world, my life has moved entirely online through videocalling platforms like Zoom. Most of my software updates automatically through the terminal when I run $ sudo apt-get ...
0
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1answer
32 views

I removed ZSH and the HUD is disappeared

I uninstalled zsh on my Ubuntu 16.04 and I made the mistake of not changing the shell. I tried with: chsh -s /bin/bash to restore the default shell, because I cannot login in the root shell of the ...
6
votes
2answers
11k views

Determining the source of memory cache usage

I'm troubleshooting a machine with slow downs due to heavy swap usage after running for several days. The system has 16 GB of ram and should generally be fine, save that a large volume of the ram is ...
8
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1answer
55k views

Ubuntu 16.04 Realtek RTL8111/8168/8411 Ethernet driver is not maintaining a persistent connection

I am having a terrible week trying to resolve an issue with my ethernet connection. The ethernet works fine for 1 minute before I lose connection. The networks icon to the top constantly reads as ...
39
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12answers
178k views

vncserver grey screen ubuntu 16.04 LTS

Greeting. I am on ubuntu 16.04 LTS. It is an amazon EC2 instance I got grey screen upon installing and starting the vncserver I try many suggestion regarding this issue but still cant get it work.... ...
1
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1answer
176 views

Closing meld window in 16.04

In 14.04 I could close a meld window by pressing Ctrlq. But in 16.04 the behavior of that key combination has changed to terminate all currently open invocations of meld rather than just the one I ...
3
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2answers
497 views

Copy path from meld window

When viewing files in meld I sometimes need to copy the path of a file. In 14.04 and earlier the file names were shown as text fields where I could easily copy the path from. In 16.04 the text field ...
0
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0answers
13 views

Timestamp hotkey won't work

Problem My custom hotkey to insert a timestamp does nothing. Details I'm using xdotool for the command. My Ubuntu version is 16.04 LTS. The timestamp I want to produce is YearMonthDayHourMinuteSecond ...
0
votes
1answer
465 views

Error in opening png files crc error in chunk idat

I was copying a bunch of png files to a separate folder, which I was going to gzip and then move to a different system. I was able to do that, but all those png files that I transferred are giving a ...
2
votes
2answers
8k views

Screen needs mode 777 with systemd service

I am trying to set up Minecraft to run in a screen session on start-up. but with the following service file, bellow is my status of my service. I am new to using the Systemd way of boot services so ...
5
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2answers
12k views

How to completelly reinstall LibreOffice?

I recently installed Ubuntu 16.04 (fresh installation), but I have lot of problems with LibreOffice. I am not more specific, as these problems seems of various nature, with windows not updating, ...
3
votes
1answer
4k views

Ubuntu 16.04: NVIDIA drivers don't work for GTX 960M

UPDATE: It worked for a while with 375, I think. Then, it suddenly stopped working today. I've tried purging and reinstalling both 384 and 375, but had no luck. They still give me black screens, and ...
17
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9answers
22k views

Disable hyper threading in Ubuntu

I am running ubuntu 16.04 server. I can see that hype threading is enabled when I use the lscpu command. I want to disable it . I went through ubuntu forums and here and here. These are good ...
3
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3answers
4k views

Since 16.04, I don't have 'when the lid is closed' options in power settings

Old OS/kernels: Ubuntu 15.10 with 4.4 kernels manually installed. New OS/kernels: Ubuntu 16.04 (no custom kernels, so 4.4 in place). Since upgrading to 16.04 it doesn't suspend correctly. when I open ...
5
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3answers
7k views

Ubuntu 16.4 LTS cannot find openjdk-8-jdk

I had to rebuild a docker container this past week, and as part of a 16.04 container creation, it does an apt-get install openjdk-8-jdk which fails with a 404 error. Switching to apt-get install ...
8
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2answers
5k views

How do I play DVDs in Ubuntu 16.04?

I need to watch a DVD for school, but when I try to watch it in VLC, I get this error: Playback failure: VLC cannot set the DVD's title. It possibly cannot decrypt the entire disc. Playback failure: ...
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1answer
5k views

Custom Ubuntu 16.04 Installer with Pinguy Builder Cannot log in using Live CD

I have created an iso using Pinguy Builder and used both Startup Disk Creator and Etcher to create bootable usb external hard drive. No errors, boots ok, but cannot log in. My original Ubuntu ...
0
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1answer
5k views

unable install package via npm install

This are the errors npm ERR! code EAI_AGAIN npm ERR! errno EAI_AGAIN npm ERR! request to https://registry.npmjs.org/cordova failed, reason: getaddrinfo EAI_AGAIN registry.npmjs.org:443 npm ERR! code ...
6
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3answers
45k views

Ubuntu 16.04 fails to boot 'Loading initial ramdisk'

I have a MSI GS70 with Ubuntu 16.04 installed for a while (dual boot with Windows 10). Everything was working fine until this morning after doing: sudo apt-get update && sudo apt-get upgrade ...
-1
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1answer
52 views

how to copy a file to another file in separate directories?

So I have created to vm's with the ubuntu 16.04 version. I'm trying to copy my public key into the authorized_keys file, how I have done this is with the command cp id_rsa.pub home/vagrant/.ssh/ I ...
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0answers
15 views

rtpulpfecenc & rtpulpfecdec missing fron gstreamer1.0-plugins-good

I am in trouble running streams with fec using rtpulpfecenc and rtpulpfecdec. They are missing from folder and other good-plugins are there, s0 running gst-inspect on these is useless. I have run ...
5
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2answers
7k views

authentication error ubuntu software center 16.04 LTS

Unable to install or uninstall apps in the Ubuntu software center. I get an authentication error, and then a popup says I cannot do this operation since I don't have permission. (Yet i'm administrator....
14
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5answers
4k views

Problem with USB mouse in Ubuntu 16.04

Since I have Ubuntu 16.04 have not had any problems with the PS2 mouse, but a week ago I placed a new mouse USB. This mouse freezes randomly (Sometimes while I am using the PC and sometimes this ...
63
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10answers
187k views

Cannot change brightness (Ubuntu 16.04 LTS, Unity)

I'm new to Linux systems in general (I'm using Ubuntu 16.04 LTS) and I'm having difficulty in changing the brightness of my notebook. When I use the Fn+F8 or Fn+F9 the brightness bar shows up but ...
7
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5answers
33k views

How to remove Wireshark from my Ubuntu 16.04 LTS?

I installed an application called Wireshark, using: sudo apt-get install wireshark I searched it and launched it. Then, I tried to uninstall it using GUI. But it is not removing. I tried using: ...
2
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2answers
3k views

No WiFi option in Ubuntu 16 in HP probook 450 G3

I have recently installed ubuntu 16.04 LTS on my new HP probook 450 G3, by dual boot. The wifi menu does not show any option to connect to wifi, I am using usb tethering. I ran this command from ...
0
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1answer
688 views

Photoshop on Ubuntu or DualBoot with Windows for it?

I am using Ubuntu 16.04. I must use Photoshop because of my job. I tried to use virtualbox but it's slower and there are some problems about shortkeys. I am thinking to use PlayOnLinux for photoshop ...
3
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2answers
915 views

How to get Extended Security Maintenance for Ubuntu 16.04

I am not ready to move on from Ubuntu 16.04 quite yet, However I want to keep my OS secure. How do I activate Extended Security Maintenance, (ESM)?
2
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2answers
5k views

confusion about cron and anacron (setting up backup schedule for rsnapshot)

I am trying to set up a not too complicated backup schedule with rsnapshot on a laptop running Ubuntu 16.04 LTS. The plan is to retain two daily backups and 24 hourly backups. I think this is the ...
1
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0answers
368 views

Ctrl + W not working

I'm using Ubuntu 16.04 and I cannot close tabs in Chrome/Ffirefox/gedit using the Ctrl+W shortcut. The Ctrl+T, Ctrl+N, Ctrl+Shift+W shortcuts work fine. I checked Gnome-tweak-tool → Theme → ...
1
vote
2answers
5k views

How to resize / and add another logical volume without data loss

Ubuntu 16.04 installed with these settings "Erase Disk and install Ubuntu" with "Use LVM with the new Ubuntu installation". Now have 3 partitions: /dev/sda1 mounted as /boot/efi /dev/sda2 Linux file ...
3
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0answers
440 views

Integrating “Phone Calls” and “SMS” with Google Voice

Recently (after a fun excursion with apt and the asterisk), a couple new menu items appeared in my Messages menu: Namely, the "Phone Calls" and "SMS" options. Now, these (just as they are) are ...
0
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1answer
1k views

Not able to create AD HOC network

I am trying to create an adhoc network with following command in ubuntu 16.04: sudo iwconfig wlan0 mode ad-hoc essid my-mesh-network ap 02:12:34:56:78:9A channel 1 however when I try to enable ...
0
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1answer
16k views

unit.service failed because the control process exited with error code. What does this error mean?

I am trying to start a script in /etc/init.d in ubuntu 16.04. but it gives me an error. I am able to execute each step in that (scheduler_slave) unit manually. However it fails while executing ...
6
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3answers
24k views

How to tweak Intel HD graphics on Ubuntu 16.04

On windows there's an Intel icon in the system tray that lets me drag a slider and switch between "performance" and "quality" graphics modes that automatically turns on and off certain features in ...
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0answers
33 views

apt-get install broken packages problem

I'm dealing with too many errors when I run apt-get install: . . . update-rc.d: error: insserv rejected the script header dpkg: error processing package python-gunicorn (--configure): subprocess ...

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