Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Enabling triple-head setup with two Nvidia GT730 (Ubuntu)

After installing a second Nvidia GeForce GT730 in the hope of overcoming a single card's limitation of only being able to support two monitors, I still cannot get a 3rd monitor working. I keep the ...
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79 views

Having trouble setting up an Ubuntu/Windows 8 dual boot

I hope I'm not posting this in the wrong place (and if I am, please direct me to where you think would be a better place to post it) as this doesn't relate entirely to Linux and is really more to do ...
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1answer
174 views

Setup server without keyboard, display, or usb

Is it possible to set up from scratch a Linux server (Ubuntu as I'm more comfortable with that) on laptop that has no keyboard, display, ethernet, or usb ports (all damaged) - without any hardware ...
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1answer
1k views

How to start 2FA-using OpenVPN with systemd?

I have openvpn config that users 2 factor authentication. If I start it manually, by running: /usr/sbin/openvpn --writepid /run/whatever --cd /etc/openvpn/ --config /etc/openvpn/work.conf it asks ...
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1answer
1k views

How do I run a service with numactl

I need to do something like this to run MongoDB $numactl --interleave=all /usr/bin/mongod --config /etc/mongod.conf & What should I change to be able to run the mongo daemon with the options ...
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1answer
819 views

Accessing Macintosh HD from Ubuntu

So after I upgraded my MBP to Yosemite, I have lost dualboot. After a long struggle, I finally reinstalled refind to work properly. Unfortuantelly, when I use Ubuntu, I cannot access Macintosh HD ...
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2answers
1k views

Elantech Mouse Touchpad not working well

I have a dual-boot Ubuntu/Debian (GNOME) machine: My mouse touchpad does not work correctly (right-click not recognized, cannot do 2 finger drag and drop/highlight) on Debian, but it does work ...
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1answer
120 views

How do I compile source into the kernel?

I want to add and compile my custom application code into my kernel. How should I add my .c and .o files into my kernel 'bin' directory and compile them? I made a hello.c and hello.o file and I want ...
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250 views

Problem in writing message from one terminal to another terminal

I have a user of name x in tty1 and y in tty2. x wants to write some message to y and vice-versa. When I typed write y tty2 in the tty1 terminal, it said: write:you have write permission turned off ...
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488 views

Can only initialize Ad-hoc mode after restarting iwlwifi mod and network manager

I am running Ubuntu 12.04.4 with network interface: *-network description: Wireless interface product: Centrino Advanced-N 6235 vendor: Intel Corporation ...
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1answer
260 views

Where is my tablet's memory card mounted on laptop?

I connected my Asus fonepad7 tablet to my laptop via usb. My laptop automatically detects it & opens. But I'm unable to find where the memory card of my tablet mounted on laptop. Just see below, ...
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2answers
1k views

Problem installing Okular from ppa under Ubuntu

Under Ubuntu 12.04, I installed Okular from a ppa. After I installed it, I ran into the following problem of opening a PDF file: $ okular my.pdf Got bus address: ...
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2answers
609 views

I can not log into Ubuntu 12.04

by ignorance and error I renamed the user_name of the directory /home/, called frank_account (home/frank_account) to sixven(/home/sixven) (using gksudo nautilus). Restarting Ubuntu, I get 3 users: ...
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2answers
369 views

Wi-Fi working on and off, mostly off on a HP laptop - take two

I have a HP laptop with Intel Centrino 2230 N card. The system is Xubuntu 13. Wi-Fi works on and off. When it's down, it still connects to the network and obtains an IP address, but ping to the ...
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2answers
1k views

Is a bad NFS mount preventing a clean boot?

I'm on Ubuntu server 11.10 (x86) and I basically ran into this problem as this: http://serverfault.com/questions/56588/unmount-a-nfs-mount-where-the-nfs-server-has-disappeared The umount command ...
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1answer
304 views

Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages

I had been trying to update my Ubuntu13.04 via 'software updater'. The updater messages that the following needs to be installed. Press continue to install When I press continue , a window appears as ...
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557 views

How to install Ubuntu in a netbook, but keeping the original win7 installation in storage

I have a Samsung N210 netbook. It has windows 7, starter edition. I´ve tried the latest Ubuntu version using a pendrive and loved it so far. I would like to install it in my netbook, but I would ...
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1answer
845 views

XBMCbuntu freezes at random intervals

I have a Gateway GM5474 which is running XBMCbuntu on a 500GB Hard drive (the originial I believe or maybe slightly newer hard drive). Little background: The system is still stock, and I was having ...
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1answer
794 views

Broadcast port to other computers after SSH reverse tunnelling

I have been reading on how to reverse tunnel and I am using this command: ssh -f -N -T -R25565:localhost:25565 dns.mindfulhacker.tk To forward my Minecraft server. My other server can connect to my ...
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1answer
14k views

vsftpd: 550 Failed to change directory

I'm using ubuntu 12.04. and ftp service I've installed vsftpd and it's working fine. But may I'm facing some user complexity. My system directory like: -/ --/home ----/rony --/vol When I list ...
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1answer
6k views

NTP not syncing in a VM

I'm managing some VirtualBox developer environments. The time drifts out of sync when the box is suspended, so I want to use NTP to keep it in sync. NTP doesn't seem to be doing its job, though - the ...
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1answer
1k views

Binding a particular IP to a port in apache2

In How to set-up a online SVN server on my laptop I asked to give access to my SVN server installed on my laptop to some of my friends siting in another part of country.I set-up a SVN server.I was ...
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2answers
838 views

Migrate an entire volume group LVM2 to RAID5

I have a Virtual Host server build with Ubuntu and Xen SO Ubuntu 12.04.1 LTS 64Bits xen-hypervisor-4.1 Disk Hitachi SAS 15K 147GB (x2) in a Volume group sda1 1GB /boot sda2 146GB lvm sdb1 ...
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1answer
12k views

Wireless not working after update (Network Unclaimed)

I just installed backbox3, during the install im asked to connect to wireless, and it works like a charm, but after i update the system and reboot, i loose wireless... "sudo lshw -C network" gives ...
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1answer
1k views

How to recover grub after Windows installation

Usually when we install Windows after installing GNU/Linux, we usually lose the Grub. Which is the best way to recover grub when we lost grub or what are the possible different ways.
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576 views

Problem getting Fedora to run in VirtualBox

I'm using Ubuntu 12.04 64-bit, trying to get Fedora 18 64-bit to run in the Oracle VM VirtualBox. I've got VirtualBox installed (via the .deb package available from the official site,) and I got the ...
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2answers
1k views

Kernel module for Cisco VPN client doesn't compile under ubuntu 10.04 LTS?

I am trying to install a Cisco VPN client under Ubuntu 10.04 LTS. In the extracted folder I type: alex@alex-laptop:~/Downloads/cisco4.8/vpnclient$ sudo ./vpn_install and there is output of activity ...
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2answers
381 views

Copying linux install from non-RAID/x86 to RAID/x86-64

I'm copying an Ubuntu Server install from an x86 machine with a single hard disk to a new machine with x64 and two identical disks. Two partitions will span the new disks: One small-ish RAID1 for ...
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1answer
900 views

How to limit ftp access to multiple places for one user

I don't even know how to write the correct question since it is a little confusing to ask it. Here is the problem. User X would like FTP access to /user/x folder and to /var/www/x folder. How can I ...
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4answers
1k views

How to install Fedora&Ubuntu with encrypted VG's on one disk?

I installed Fedora 14 first, then Ubuntu 10.04. I installed them using dm_crypt/aes256/lvm, so I used encrypted VolumeGroups. At the end of the Ubuntu install it said it cannot install GRUB, so I had ...
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1answer
833 views

How to align applets on Gnome panel

Does anyone know how to align applets on Gnome panel? For example I add notification area and there's five icons (you see it on the left of processor icon). Then, I plug my BlueTooth adapter out of my ...
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1answer
46 views

How do I set up a udev rule to mount the SanDisk Cruzer USB upon insertion in order to eliminate an fstab entry?

Suppose I run sudo mount -a after setting /etc/fstab to: /dev/usbhd1 /path/to/mount/point ntfs rw,auto,nofail 0 1 Yesterday, upon asking what steps our architect and I should do next after a ...
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1answer
35 views

Discrepancy between Ubuntu 16.10 System Monitor % CPU and ps pcpu, % CPU utilization with respect to the individual Firefox browser process

What is the reason for the following discrepancy between Ubuntu Linux 16.10 System Monitor % CPU utilization and ps pcpu, % CPU utilization with respect to the individual Firefox browser process? For ...
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1answer
36 views

Process login vs user login

In a Ubuntu 14.04 system, who has the following output: user1 :0 2016-05-02 14:49 (:0) user1 pts/4 2016-05-02 15:10 (:0) So apparently just the pts/4 is used. But, for example, ...
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59 views

Macbook pro sd card reader doesn't work on Ubuntu 14.01

I have a macbook pro retina, the newest model. I used rEFind to dual-boot Ubuntu 14.01, but the sd card reader doesn't recognize the card. Is there a fix for that? Thanks.
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1answer
63 views

udev doesn't apply changes recursively

I'm working with a beaglebone black board (ubuntu release for ARM architecture), which has some general purpose input/output (GPIO) interface to read sensors/drive motors etc.. which are configurable ...
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30 views

mount namespace not work in ubuntu whether 15.04 or 14.04

NOTE: Referencing this Q&A: Why is my bind mount visible outside its mount namespace? It gave an unshare example, but it did not work in Ubuntu. I tried on Ubuntu 15.04, with util-linux 2.25. I ...
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2answers
109 views

Warning while Booting into Ubuntu

Recently, I installed Kali Linux 2.0 as a third OS on my Dell Latitude E7240. I used Unetbootin to make a bootable USB of Kali Linux. When I booted from it, it gave me options I wasn't used to. I ...
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338 views

Fine tuning Network manager in AP mode

Ubuntu Network-manager graphical front end only allows creating a Hotspot in ad-hoc mode, but does not allow setting a Hotspot in Infrastructure mode. So I have setup a Wifi AP in infrastructure mode ...
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1answer
414 views

Can't connect to the Internet

I turned on the machine one day and some websites would load others not. SSH wouldn't work, gmail wouldn't work. So I opened the my ftp client and tried to upload something and it stopped at 0.1 ...
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2answers
54 views

How to change ThisName@HostName ~ $

I am quite new to Linux and I was wondering how to change the following when in terminal permanently. When I set up my computer I used a name that I now want to change: In terminal, the name I want ...
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41 views

Nvidia bumblebee problems with xubuntu 12.04.5

When I upgrade from ubuntu 12.04.4 to 12.04.5 I can not start my computer on battery power. I can start it with it plugged in then unplug it and run for hours. The only thing I can think of is that ...
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32 views

X stopped working after a kernel update

My system is a laptop with Ubuntu 14.04, with an Intel CPU and Intel + Nvidia GPU combo. After one automatic kernel update, the GUI stopped working. It shows a blue loading screen with a spinner, up ...
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55 views

My ext4 partition is corruption-prone possibly because of suspend

I'm using an encrypted ext4 main partition on a Lenovo i7 laptop running Ubuntu 14.04 LTS, currently using the 3.13.0-53-generic x86_64 kernel. After running for multiple weeks without shutting down ...
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1answer
444 views

Problem with touch pad in linux

I have a Lenovo g500 laptop and I recently installed Ubuntu 14.04 in it. The problem is that the touchpad in not being dectected. I ran Ubuntu in live mode before installation and the touchpad worked ...
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1answer
156 views

Problems setting up Ubuntu Machine as a router

I have been at this for over 24 hours, here is what I have so far. -I have an Ubuntu Server running version 14.04.2.amd64, called SV-01 -SV-01 has two NICs. ETH1 is for the external network (goes to ...
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1answer
695 views

Find out what caused my Ubuntu rebooting?

My Ubuntu 14.04 on Thinkpad T400 just rebooted automatically. Before that, my screen just became unresponsive. My memory and swap were mostly used, mainly by webpages opened in Chrome and some ...
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69 views

Turn .vmwarevm into .iso

I was wondering if anyone knows how to take the .vmwarevm and the files inside it and turn it into an .iso. I searched on Google but haven't found anything. It would be amazing if the .iso can ...
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1answer
99 views

Setting ServerName to suppress Apache warning message with multiple domains

When I restart/reload/whatever apache2 (2.4) on Ubuntu Server 14.10, I get the error message that the server could not determine the FQDN. I had this set previously, no big deal, but I now have two ...
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2answers
796 views

VirtualHost with mod rewrite pointing at tomcat application

I am setting up a server running on Ubuntu 14.04. I have apache and tomcat installed with the rewrite module for apache and mod_jk enabled. I have mod_jk properly configured so apache is forwarding ...