Free, open-source operating system based on Debian GNU/Linux. Ubuntu questions are on topic here, but if you prefer an Ubuntu-only audience there is AskUbuntu.com.

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QEMU with GPA pass through won't start

I'm running Ubuntu and trying to configure QEMU with a GPA pass through. I was following those guides: https://www.youtube.com/watch?v=w-hOr44oBAI ...
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is there any benchmark c program for chrt command to test?

is there any benchmark c program for chrt command to test? which policy is the fastest real time policy for user process and module process? and which priority is the fastest? SCHED_OTHER min/max ...
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Gnome music pop-up window on Ubuntu 14.04

I recently installed Gnome music on a Ubuntu 14.04 system with Unity desktop. However, there is a peculiar issue. Every time I play a song several windows pop up (six same windows for each song). So ...
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Alternatives to save PowerPoint slide with high resolution (300dpi) in Ubuntu

I need to export a Power Point slide as a image (.png) with 300 dpi of resolution. I found this guide and this microsoft page with the way to do it. Both recommend a approach that change the ...
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1answer
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apt-get install libphp-phpmailer not including class.phpmailer.php

I am installing PHPMailer on a Ubuntu 14.04 LTS server. I ran the command apt-get install libphp-phpmailer. It installed the files under usr/share/doc/libphp-phpmailer as expected. However, it is ...
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1answer
15 views

Opening encrypted pdfs in Ubuntu firefox

I am trying to open an encrypted pdf file in the ubuntu version of firefox. I am offered gedit as a default option, which doesn't work - i just get a stream of incomprehensible characters. I usually ...
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14 views

An unexpected TLS packet was received setting up VSFTPD - Filezilla

I'm setting up an FTPS server under linux Ubuntu 14.04.01 i installed VSFTPD using apt-get install vsftpd then generated an openssl Key using: openssl req -x509 -nodes -days 730 -newkey rsa:2048 ...
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1answer
45 views

Ubuntu 14.04 no internet access with my laptop

I have looked at askubuntu for answer but still I cannot resolve my problem.My ifconfig eth0 Link encap:Ethernet HWaddr 00:25:b3:42:05:5c BROADCAST MULTICAST MTU:1500 Metric:1 ...
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12 views

Bumblebee In Linux not working (Nvidia 970M)

I'm new to Linux system here, I run Ubuntu 15.10, and have Bumblebeed and bumblebee installed. However, every time I try to run Optirum (e.g optirun firefox), this error comes up. [ 2137.822002] ...
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how to scan in ubuntu in inside of firewall to check which ports are blocked by ASA or Juniper

how to scan in ubuntu in inside of firewall to check which ports are blocked by hardware firewall such as ASA or Juniper or switch's access list ? if can not install any software but can upload a ...
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Send UTF-8 characters to Ubuntu over SSH via Windows CMD.exe

I'm on Windows, using cmd.exe and ssh (installed with Git for Windows) to connect to an Ubuntu box. I want to issue a command with a UTF-8 character in the name, e.g. mid3v2 -t "Hamārā" my.mp3 Is ...
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7 views

Use Different Dropbox Account On Linux (Ubuntu)

I installed the Dropbox application / service on my Ubuntu (2015/v15.04) installation. I logged in at the time to one Dropbox account. I have another that I share, now. Ideally I could use both at ...
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1answer
20 views

Can't boot windows. Is cloning the HD and restoring after a Windows 7 reinstall a good solution

Can't get past the black screen with cursor in Windows 7 when I start my laptop. I've tried many solutions but I think it's not fixable. If I clone this drive and then reinstall windows, will I be ...
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9 views

Ubuntu 15.10 resets xkb settings on layout switch

I want to swap my CTRL and ALT. To do that I've done the following: setxkbmap -print | xkbcomp -xkb -o original.xkb - then swapped lctrl and lalt codes and executed xkbcomp swap-ctrl-alt.xkb :0 ...
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Can't start Ubuntu VM's on VirtualBox 5.0.14

I've been trying to spin up Ubuntu and Xubuntu (14.04.3) VM's on VirtualBox installed on my Windows 7 laptop. For reference, I tried running an older Ubuntu VM (with Spark installed, that worked ...
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12 views

Install openjdk 8 on Mint 17.3

I am trying to install openjdk 8 on my Mint 17.3 It is based on Ubuntu 14.04 which does not have openjdk 8 in its repositories. Although, I was able to find a link where someone just says that it is ...
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2answers
18 views

print lines containing limited words in the second field

I have a symbol table of the form M07UP49A0870I422.wav <s> haraa keelaa <bn> </s> M07UP49A0870I423.wav <s> <horn> jau <babble> </s> ...
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27 views

Allocate more RAM to VirtualBox VM on hard disk [on hold]

I downloaded VirtualBox on MacPro running El Capitan. My VM is a 64-bit Linux Ubuntu, which I recently copied to a hard disk with 32 GB memory. I want to give the VM all 32 GB of RAM, but VirtualBox ...
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12 views

Windows boot manager was destroyed after installing Ubuntu 14.04

I tried installing Ubuntu 14.04 in Lenovo G50 which runs on Pentium processor. The system already had Windows 8 (manually installed). I separated 50 GB from a partition and turned off Fast boot and ...
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1answer
12 views

Ubunut 14.04.3 LTS network stopped working on VMWare

After restart, networking suddenly stopped working and I'm unable to connect to internet. ifconfig -a eth0 Link encap:Ethernet HWaddr 00:0c:29:c9:1a:f3 inet6 addr: ...
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8 views

Update ubuntu's 'make'?

I am trying to update 'make' from 3.8.1 to the recent version. I have tried: sudo apt-get update sudo apt-get install make But I am told that 'make is already the newest version. What can I do? I ...
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20 views

List the monitors physically connected to remote computer (make/model details)

If I were sitting in front of the computer I could run xrandr --query in terminal but this doesnt tell me the make/model (at least i know something is connected) but while remote (using ssh) I receive ...
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2answers
36 views

How can I boot into Ubuntu where grub was removed?

Here's my situation: I installed Ubuntu on my work laptop on a partition before IT implemented whole hard drive encryption via bitlocker. I had to do some quick work when IT announced they were ...
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1answer
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Why can't Ubuntu read external volume files after I recursively { chmod +r and remove ACL }?

The commands I used are: sudo chmod -RN /volume and sudo chmod -R +r /volume The external volume is a backup of OSX home folders. The above made it only possible to read what contents is in the ...
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Track the calls of a command

To quickly explain the goal of my question, I use Ubuntu mate with an apple keyboard. To make the keyboard working properly, I had to remap some keys using xmodmap, such as interchanging the #/@ with ...
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1answer
23 views

Changed “path” variable in Ubuntu Linux and basic commands have stopped working

I'm using Ubunut 14.04 (as a virtual machine). I installed TeX Live system over the internet. Once the installation of TeX live finished, it said Most importantly, add ...
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11 views

Bitnami edx cypress ubuntu server ip address is not browsing in local host browser

I have install vmware workstation 10 and open virtual machine bitnami_edx_cypress -4r02-ubuntu-14.02. In ubuntu typed ifconfig, nothing is come then I changed network adaption as NAT then typed ...
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14 views

Show details on Windows and Ubuntu boot screens?

I want the boot screens (at 640x480 resolution) to show a scrolling list of startup events, along with: "per-event" and "total" progress bars, each with percentages and "number of drivers ...
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1answer
27 views

Why does Amazon Video works on Google Chrome but not on chromium (Ubuntu)?

I tried firefox, opera, chromium and google chrome. Why does amazon video only works with google chrome?
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How to create an ISO image of my VMware Fusion Ubuntu and install it on a desktop machine?

I am running VMWare Fusion on my Mac and have an Ubuntu virtual machine running in it. Now I would like to copy this virtual machine into a proper desktop machine. Is it possible? If yes any resources ...
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19 views

how to install ubuntu server on a new computer? [on hold]

I new to ubuntu linux and planning to set up home server using ubuntu. this home server will be used more like media storage, laptop backup, network print, file sharing and plex. Also I would like to ...
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1answer
40 views

Dell Inspiron R15 3521 BIOS doesn't show the option to boot from USB

Secure Boot is disabled and I'm on Legacy Boot right now. When I go to Boot settings there doesn't seem to be any option to boot from USB or even add that as an option. (I have tried two USB 2.0 and ...
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0answers
13 views

Going up a directory in Nautilus' location bar

I am trying to go up a directory in Nautilus' location bar. For example, I start here: I then give focus to the location bar, type .. and hit enter, but it brings me to the first folder in the ...
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24 views

avconv - Error for scale filter

I'm trying to rescale a video via avconv with the following command: /usr/bin/avconv -i /home/user/video.mp4 -filter:v crop=960:720:160:0,scale=h=498:w=-1 -an -y -frames:v 1 media/image.png But I'm ...
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0answers
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How do I install GRUB as a boot loader when I currently use Mac OS X (Yosemite)

I currently have a Hackintosh running Mac OS X Yosemite. I'm in the process of updating it to El Capitan any day now. I have an empty drive slot that I'd like to install Ubuntu onto. I'd like to use ...
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1answer
17 views

Unable to load nvm commands via SSH [Ubuntu 14]

I know there are quite a few similar questions around, but I am still unable to get this to work. If I try to run nvm install node, all starts to work again. ubuntu@*:~$ node The program 'node' can ...
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1answer
25 views

Dual boot Windows 10 / Debian 8

I messed up my Ubuntu installation, which is in dual boot with Windows 10, and I'd like to overwrite it with Debian 8. Should I just format the Ubuntu's partition and run the Debian's installer? And ...
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2answers
42 views

Cannot connect to local SSH server - bad file number

I have an Odroid XU4 with Ubuntu 14.04 server on it. I installed the ssh server with apt-get install openssh-server. I got the local IP with hostname -I, which is 192.168.0.186, I generated a random ...
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1answer
15 views

No boot menu for backbox

I have windows 10 installed on my C: drive which has 202 gb space. When I got my laptop it was mentioned with UEFI. I have a partition of 700 gb for F: drive from which I extracted 20 GB for backbox ...
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1answer
33 views

Ubuntu only uses 768 MB instead of 1 GB ram

The specs of my laptop and BIOS say that I have 1 GB (1024MB) of ram. But when I use Ubuntu it says that I have only 768 MB. Is there a way to use all the ram that I have? I have Asus K53U laptop ...
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0answers
14 views

Keyboard key presses showing up out of order (Ubuntu 15.04, Microsoft SideWinder keyboard)

I've noticed this for a while, but only recently tried to troubleshoot. Using the MS SideWinder keyboard on Ubuntu 15.04, which has n-key rollover, if I type words quickly I find that intermittently ...
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1answer
44 views

Can't dual-boot Windows 7/Linux Mint (UEFI)

This post is going to be kind of long because I've done a lot of testing. Until proven otherwise, I'm going to assume this incredibly bizarre issue is caused by my computer being haunted. I'm also ...
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6 views

Can't connect to wifi in both Windows and Ubuntu (but USB tethering works)

I just bought an ASUS K31AD desktop PC. I have both Windows 10 and Ubuntu 15. I can connect with my phone's USB tethering but not with its Portable Wi-Fi. What can be the cause of this? I used to be ...
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1answer
6 views

Cannot upgrade Python

I just recently tried using Let's Encrypt to generate free SSL certs for a small website I'm running on a personal server. When I ran the letsencrypt-auto tool everything seemed to work, although a ...
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Mdadm raid gone after reboot

Mdadm raid gone after reboot. Will gdisk work on 6TB HDD's? Will some describe how to use "parted" to write "fd00"? Rephrased better
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19 views

Play stream with VLC on Ubuntu 14.04

I have Ubuntu desktop 14.04 with two NIC, eth0 and eth1. One is just for internet and the other one is on local subnet where multicast UDP stream is coming. Default route is on eth0, and multicast ...
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Auto-unmount NTFS partition when hibernating Xubuntu

I use a dual-boot setup (Xubuntu & Windows). My Windows has Fastboot and Hibernation disabled and my main OS is Xubuntu which i hibernate almost every day. I always make sure no NTFS partition is ...
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36 views

Just Installed Virtualbox on Windows 10 host, Cannot Load Ubuntu

Just installed 4.3.12, build 9926. For reasons I won't go into right now (extensive), the newest builds of VBox crash immediately in Windows 10 Home Edition. Build 4.3.12 will actually start Vbox ...
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19 views

Web Server redirect to old IP address

I have EC 2 instance , configured has web server used wiki-media to create page, along with EC 2 I used RDS mysql database server. At first it works fine , but when I stop instance & start it it ...
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Home network ADSL Modem to Ubuntu Server to Wireless Router

I've got a D-Link DSL2544N in bridged mode connected to my Netgear R7000 wireless router, with an Ubuntu dev server hooked up to that through an ethernet port (I'd upgraded from the D-Link and didn't ...