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.

learn more… | top users | synonyms

2
votes
3answers
2k views

Ubuntu 11.10 freezes from time to time, don't know why

I installed Ubuntu as a second Operating System on my (Dell) laptop 2 days ago. Since then Ubuntu has frozen 4 seperate times. I have no idea why. The applicaitons that I have used during these ...
0
votes
0answers
26 views

FFmpeg: Unrecognized option preset

I'm using ffmpeg to convert yuv to mp4 losslesly in ubuntu 14.04. My code is (without line splitting): ffmpeg -f rawvideo -vcodec rawvideo -s 560x448 -r 40 -pix_fmt yuv420p -i ...
0
votes
1answer
21 views

Why the time displayed by OS is not the same with the time in UEFI?

I purchased a new notebook and installed several operating systems on it. I noticed that if I disabled time synchronization (or I was disconnected from Internet so time sync can't work), the time ...
0
votes
1answer
34 views

Run Windows app from Ubuntu on Windows

I'm using bash on Ubuntu on Windows. I navigate to a folder and from there I'd like to open a file in a Windows program. For example: After entering cd \mnt\c\Users\myusername\Desktop notepad index....
-2
votes
0answers
23 views

cant ssh with noip hostname from outside network

I tried to access ubuntu with SSH from outside network, but seem to be unsuccessful. I have installed - noip on my ubuntu server - ddclient - forward port 22 on my router as shown in picture. ...
0
votes
0answers
17 views

Is partition required for Samba if using entire disk

I have two hard drives on my PC, one of them /dev/sda is installed with Ubuntu, and the other one /dev/sdb will be used for storage only. I will run Samba to share the space. I tried to format the /...
0
votes
0answers
36 views

Installing Veil Evasion on Ubuntu 16.04

I have been trying to install Veil Evasion on Ubuntu but i get the below error. Any help would be appreciated. als@desktop:~/Veil-Evasion/setup$ sudo bash ./setup.sh -c id: ‘als\nals’: no such ...
0
votes
1answer
13 views

How to check AES speed on Ubuntu?

Is there any way to check how fast an Ubuntu 16.04 machine can do AES ciphering? I'm not interesting in comparing AES levels, but am just curious to see the cost quantified in some way. Since it's ...
-1
votes
0answers
29 views

Mulitple Ubuntu Subsystems on Windows 10

Is there any way to have multiple Linux Subsystems on Windows 10, each one separate from each other? Thanks
0
votes
0answers
17 views

Some NFS mounts from synology NAS lose execute permission after mounting

I am mounting 5 shares from my synology NAS on a ubuntu server. They are all identically shared on the NAS and identically mounted. The mount points before mounting are all drwxrwxrwx. After ...
0
votes
0answers
8 views

Editing a video

I used OpenShot Video Editor to concatenate a few videos of a vacation I recently went on. However, the first 18 seconds of the video is upside down; the rest of it is fine. Even though I am using ...
0
votes
0answers
25 views

How do I uninstall Ubuntu 16.04 LTS in a triple booted (with Windows 10 and Kali Linux 2) and reinstall it?

I have recently installed Ubuntu 16.04 alongside Windows 10 and Kali Linux 2. I have messed up a bit of Ubuntu by unpacking a lot of .deb files and now having problems with unmet dependencies, and I ...
2
votes
1answer
2k views

Why doesn't ls show the group name?

When I use ls -l, it does NOT show the group names in the listings. Only the user names. aj@host:/media/storage$ ll total 724 drwxrwxrwx 10 root 4096 Sep 17 18:23 . drwxr-xr-x 3 root ...
-1
votes
0answers
11 views

are SSH public keys automatically created and transferred with first contact?

so i just sent up an SSH server on my ubuntu server to transfer files between it and my other machines. now when i connected both ways, RSA public keys were created and stored it automatically. i ...
4
votes
3answers
2k views

To have Vim Psql's editor

I have a Fresh Ubuntu installation. I have no personal dot-files active. I run unsuccessfully \e file.sql in Psql, when I have the following in my .bashrc, since Nano opens instead of Vim export ...
0
votes
0answers
6 views

openVAS distributed architecture setup issues

Really hoping you can help as a college and I have spent over 2 days trying to work this out! We have a Ubuntu server with openVAS install using the guide on the ppa site. That works great. But I'd ...
4
votes
4answers
10k views

How to copy image to clipboard, to paste to another application?

I want to set the clipboard to file abc.jpg, in image format, so I can paste it to gpaint, etc. X11 applications, can I? I have enabled Screen snapshot feature in Compiz windows manager, and I need ...
-1
votes
0answers
30 views

Changed my hard disk to an SSD but not detected

I removed my old hard disk and put in a SSD in my laptop (Acer E-5 771). However on booting the EFI informed me that there was no bootable drive. Booting into Ubuntu on a USB, I couldn't see the SSD ...
0
votes
0answers
376 views

Broadcom BCM43142 802.11b/g/n not working with Ubuntu 15.04

I have a Dell laptop with the above WIFI chip. It's show as Dell wireless 1704 on Windows. So I have Ubuntu 15.04 USB drive prepared and boot into the live environment. But I don't see the WiFi as ...
0
votes
0answers
9 views

Why is this regex over /var/lib/dpkg/status showing non-installed packages

I have a script which is intended to list the largest installed packages on Ubuntu. I can't remember where I got it from and I don't understand it. sed -ne '/^Package: \(.*\)/{s//\1/;h;};/^Installed-...
2
votes
2answers
5k views

Dell Mini 10 with Ubuntu - touchpad issues

I just recently got a Dell Mini 10 (not a 10v) and I installed Ubuntu 9.04 (regular, not the netbook version) All works well except the touchpad is jumpy as all get out. It seems like the mouse is ...
5
votes
5answers
29k views

apt error: Could not perform immediate configuration on

I have issues running the following command: root@X100e:~# apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... ...
1
vote
3answers
563 views

Ideal business grade laptop/notebook for running recent Linux distros (Ubuntu Karmic etc)? [on hold]

I am looking for a robust business grade laptop/notebook with 3D capabilities and which can run recent Linux distributions and would be easily compatible with Ubuntu 10.10 when it comes out. Any ...
0
votes
0answers
11 views

Combining multiple WAV files into a single MP3

I'm trying to combine a number of wav files into a single mp3. The simplest command I can come up with is this: /usr/bin/avconv \ -y \ -i input1.wav \ -i input2.wav \ -i input3.wav \ -i input4.wav \ -...
0
votes
1answer
135 views

(Setting up SSL) invalid number of arguments in “ssl_certificate” directive in /etc/nginx/nginx.conf

I am trying to setup SSL on my server. I purchased my SSL certificate from Comodo. I am following the tutorial they have made here: https://support.comodo.com/index.php?/Default/Knowledgebase/Article/...
2
votes
3answers
508 views

“Input/output errors” using encfs folder inside Dropbox folder

I have a 200 gig Encfs encrypted file system living in my Dropbox and being accessed by multiple machines, and I've never had any problems with it until now. I moved about 10 gigs of data around on ...
1
vote
1answer
11 views

How do i update available versions for operating system types in virt-manager

How do i update available versions for operating system types in virt-manager? For example for Ubuntu, only up to Ubuntu 14.04 LTS is in the menu but I'm installing Ubuntu 16.04 LTS. Installation ...
0
votes
1answer
46 views

Touchpad unresponsive until X restart

I'm on a Netbook with Mint 13 (Ubuntu-based). It has a touchpad which gets stuck every now and then (it's quite rare actually, but it does happen -- a few times a day). Restarting X fixes the touchpad....
17
votes
2answers
44k views

VT-x error when setting up VirtualBox on Ubuntu

I have tried to setup VirtualBox on Ubuntu, but I get this error even though Intel virtualization technology (VT-x) is set to Yes in the BIOS: Failed to open a session for the virtual machine ...
0
votes
1answer
12 views

VM doesn't boot after drag and drop

After attempting to drag and drop a file from my Ubuntu host into my Windows 10 VM, (which crashed VirtualBox) the image seems to have become corrupted. On booting, I immediately get the dreaded "...
1
vote
0answers
10 views

how do I install more vpn plugins to ubuntu network?

The default PPTP is there but how do I get IPSEC in that dropdown?
38
votes
2answers
6k views

Why is it so hard to find a file in Ubuntu?

It's very hard to find files in Ubuntu. In Windows, you could just go to C:\Program Files and you would find what you need. In Ubuntu, you must use search to find something you need. Maybe I am ...
0
votes
0answers
18 views

Unable to connect to HostedNetwork which I had previously connected to

I have two laptops, one running windows 7 and the other running ubuntu. I am using company wifi which I can connect only one device at a time. I set up a hostednetwork on the windows laptop (using ...
0
votes
1answer
20 views

Can I create a Windows 7 recovery disk on a dual boot system?

I want to uninstall Ubuntu from a computer running both Ubuntu and Windows 7. I understand that to do this, I need to delete the Ubuntu partitions on the computer and use a windows recovery disk. ...
0
votes
0answers
18 views

In Linux Ubuntu what does reset X mean?

I am new to ubuntu and I have version 14.04LTS and I am trying to overclock an AMD GPU. When I set the core and memory clocks with these instructions: --odsc, --od-setclocks={NewCoreClock|0,...
0
votes
0answers
42 views

Can't browse any web page without being verified

Every time I tried to browse a web page , there is a request for being verified whether I am a robot or not . After I check the mark , that I am not a robot , then a question is appeared like check ...
0
votes
1answer
406 views

How to install Arm 7 distribution of Nodejs

Nodejs provides pre-built binaries for ARM7: https://nodejs.org/dist/latest/ There's nothing in the readme about installation on ARM7. How can I ensure node and npm are installed globally. Is it ...
0
votes
2answers
29 views

Recommended setup with 2 hd and 2 os

I have a Thinkpad T420 laptop, with 2 hard drives: SSD drive, 128GB, GPT (disk1) normal HDD, 5400 rpm, 500GB, MBR (disk2) I need to run 2 OS in this laptop: Windows 10 + Ubuntu 16.04. So, I've ...
1
vote
1answer
490 views

ubuntu not detecting CDdrives

Ihave insatlled ubuntu 10.4 on my compuer with 6 cd drives. Now initiallyi had window server 2008 and i had to install marvel raid sata controller and then my window detected all 6 drives. Now ...
2
votes
5answers
671 views

Why do I need to use a command prompt in Ubuntu?

I wanted to try out a few Linux applications, so just installed Ubuntu as a VMware virtual machine within Windows. VMware prompted me to install the VMware tools, and put a virtual CD-rom on the ...
4
votes
2answers
1k views

Moving VMware OS image as primary OS on a system

How can you take a VMware image and place it onto other hardware systems as the default OS? I want to do this with my Ubuntu VM's
0
votes
1answer
19 views

why do i see a patchy screen while booting into windows 8 on a dual boot with ubuntu?

I recently installed ubuntu 16 on a dual boot with windows 8 on my lenovo g50-80. After completing the ubuntu installation and booting back to windows it shows a patchy screen as shown in the image.
1
vote
1answer
26 views

Purpose of /etc/X11/Xsession.d files

I'm with linux and have some questions about Xsession. As I understand /etc/X11/Xsession script is launched when X Window System session is begun. But as I was examining code in /etc/X11/Xsession.d I ...
6
votes
7answers
59k views

How to access a network folder in Ubuntu using the terminal

I am new to Ubuntu(and Linux for that matter) and I am trying to access files using the terminal. The network folder is on my Desktop, but when I go to the Desktop folder via the terminal, the ...
16
votes
3answers
12k views

Check number of pending security updates in Ubuntu

Let me start by saying I have been forbidden to enable automatic updates on our Ubuntu servers, for both security and regular packages. When I log into any of my four Ubuntu servers, the welcome ...
16
votes
1answer
3k views

How to remove/reset Windows Subsystem for Linux on Windows Insider Build 14316

I installed the Windows Subsystem for Linux on Windows 10 Insider Preview build 14316. Now I would like to remove it or, better, revert to its factory defaults i.e. as it was when just installed. I ...
1
vote
1answer
120 views

How do I configure ipv6 on a LXC configured bridge?

I am trying to figure out how I can add IPv6 to lxcbr0 that LXC creates. The IPv4 could be configured in /etc/default/lxc-net but I find nothing about IPv6. Can this be done? I am running Ubuntu 14.10
1
vote
0answers
25 views

Moving Windows 10 bootloader to another drive

Here's the situation. I have 2 SSD hard drives in my system, a 128GB and 500GB. Currently, my partition structure is this: 500GB - Ubuntu 16.04 Install Device Start End Sectors ...
1
vote
1answer
752 views

How to make Ubuntu VM in VirtualBox accessible from the internet?

I'm trying to set up an Ubuntu server in VirtualBox. The host is Windows 7 x64. The guest is Ubuntu 11.10 x64. I want to make this server accessible from the internet. How can I do it?
1
vote
1answer
5k views

Connect to external VPN from an Ubuntu Guest machine on VirtualBox

I have the folding VirtualBox setup: My host machine running a Kubuntu 14.04. My guest machine is running Kubuntu 14.04 as well. My host machine is connected to office A’s LAN and has access to ...