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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Backup and Restore list of installed packages and APT sources

I commonly reinstall Ubuntu and back up my APT stuff [sources, keys and installed package lists] using the tutorial at http://askubuntu.com/a/99151/371765. However I commonly also remove software such ...
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1answer
46 views

cron/ bash is not working via scripting, scoping issue?

I'm trying to schedule a task to run ever minute using cron: * * * * * /home/yzm/simple.sh >> /var/log/cron.log and this returns: bash: yzm: command not found cd-ing out of that folder: cd ...
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0answers
34 views

Enlightenment E19 Screen Magnifier

I'm looking for a solution for accessibility in the Enlightenment E19 WM. I am using Bodhi Linux 3.0.0, returning from a long hiatus of Linux. Last time I used Linux in a desktop environment was ...
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1answer
70 views

IPv4 goes offline several times per hour on headless remote server, IPv6 unaffected

On my Ubuntu 14.04.2 server IPv4 goes offline several times per hour (one to four times I've seen, but at no particular minute per hour or so). My hoster insists that the problem is on the ...
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1answer
59 views

btrfs: mounting a subvolume in a different path does not work - No such file or directory

I want to mount the subvolume in a different directory on the @ subvolume... should be possible or did I miss something? # btrfs subvolume create /foo # mkdir -p /mnt/storage1/foo # mount -t btrfs ...
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1answer
59 views

How to get the http dump of a website and the header both from a single curl command?

I have to fetch a website (multiple redirections possible using -L) and save the html content in a file named as [HTTP_Status_code]_[Website_name].html Currently I am using two curl calls one for the ...
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1answer
30 views

Is there a command that outputs ONLY the packages explicitly installed by the user? (ubuntu/debian)

I have tried searching for this but there seems to be no command that can output a list of packages (ideally in Ubuntu) that I have installed, not including any dependencies.
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31 views

Mounting nfs4 partition over ssh tunel

I am following this manual on how to mount an nfs port over an ssh tunnel: https://blogs.oracle.com/shepler/entry/tunneling_nfs_traffic_via_ssh I need this because I want to mount an nfs partition ...
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1answer
30 views

Need help creating a Live SD card

I'm having a bit of of a nightmare. I'm trying to create a bootable SD with Arch on it after failing miserably earlier today in VirtualBox fdisk output : Disk /dev/mmcblk0: 32.0 GB, 32010928128 ...
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2answers
54 views

Relations between Linux distributions releases and updates [closed]

I can't explain the relations between updates for every release and the release itself. Let's make an example. Ubuntu has 14.04 LTS and 14.10. Both of them are still supported, so what is the ...
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1answer
72 views

Error while installing Apache; error is “E: Sub-process /usr/bin/dpkg returned an error code (1)”

I followed an online article to remove my Apache from my system. I removed Apache through these commands sudo apt-get purge apache2 apache2-utils sudo rm -rf /etc/apache2-bin sudo apt-get autoremove ...
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2answers
58 views

Cannot access internet through OpenVPN

I have set up an openvpn server, generated a certificate and downloaded it to my client machine. After importing the client.ovpn file in the network manager, I can still ssh into the server itself, ...
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1answer
180 views

Reading the contents of an ELF file (programmatically) [closed]

I am trying to retrieve the contents of an additional section within an ELF binary. At this point, I'm using the following code to retrieve the name of each section: #include <stdio.h> #include ...
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1answer
67 views

HDD Won't connect / system won't read it. Not sure what dmesg output means`

I have a hdd that I pulled from an old windows laptop, I don't think there's any information on it that I want to keep. I was going to format it to ext4 or something. Yesterday when I connected and ...
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1answer
813 views

Software center not working on kali linux?

I followed the instructions for installing kali linux and put these commands into the terminal: apt-get update apt-get install software-center I also added: deb http://http.kali.org/ /kali main ...
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0answers
21 views

aufs fs is being mounted before component parts

I'm having issues at boot time. It fails to mount the aufs (and so suspends the boot asking if I want to continue... no good on a server) I thought I had set up my fstab to mount the aufs AFTER the ...
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0answers
68 views

Restrict the maximum number of independent IP connection on specific port at the same time

I set up a server as a socks5 proxy. I'd like restrict the maximum number(1 or 5 or 20) independent IP connection on specific port at the same time. I have searched on google, only see some articles ...
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0answers
45 views

Not able to boot into ubuntu or windows

prerequisites you will need to know regarding my problem earlier I had Ubuntu 13 version, due to some unknown reason, when I restarted my computer to enter into windows it went directly to grub ...
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0answers
32 views

Compiling a loadable kernel module(Debian/Ubuntu)

This question is a follow up of this one. I am trying to compile the ELF loader as an individual LKM and use it as a standalone application(replacing the original module within the base kernel sounds ...
2
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1answer
177 views

Installing MongoDB in Ubuntu LXC Container. Fails with 'invoke-rc.d: initscript mongod, action “start” failed.'

I can't manage to install mongodb in a Ubuntu LXC container. I've set-up the Ubuntu 14.10 host by following these instructions: https://linuxcontainers.org/lxc/getting-started/ lxc-create --version ...
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1answer
34 views

Unison on Ubuntu 14.04

Very simple task at hand here: using unison in a star topology in order to synchronize /home folders across multiple servers. So, for ~/.unison/default.prf on each box... Hub: root = root = ...
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4answers
58 views

RAID 1 on server - need file from mirrored drive

About 3yrs back I had setup an Ubuntu server for a medical clinic. I had set in 2 HDD's for the purpose of having RAID 1 (software RAID) Today suddenly they can't access a table on one of the mySQL ...
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2answers
40 views

Terminal Line not properly wrapping [duplicate]

I am having a weird issue with my terminal wrapping, and after reading online I have found out it is likely because of my PS1 setup, however, I looked at it, and it seems to match what people are ...
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1answer
84 views

I installed Ubuntu instead of Windows. Where are my files from D drive?

I'm quite new in Linux. I have had a Windows and two drives: C and D. Windows was on C. Then I installed Ubuntu instead of Windows, and I expected my files on D will stay. But I can't find it. As far ...
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1answer
33 views

Config iptables ssh over VPN

How can I define a rule that only allows ssh via VPN in iptables? My iptable Rule is following: #!/bin/sh IPT="/sbin/iptables" $IPT --flush $IPT --delete-chain $IPT -P INPUT DROP $IPT -P FORWARD DROP ...
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0answers
33 views

Error while setting up environment for running swift

I am getting the following error when running the script remakerings # remakerings Traceback (most recent call last): File "/usr/local/bin/swift-ring-builder", line 5, in <module> ...
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1answer
78 views

Realtek rtl8192cu-fixes issue elementary os

I asked this question here[http://askubuntu.com/questions/594760/realtek-rtl8192cu-fixes-issue-elementary-os] but was redirect to this site. Copy of original questions Has anyone had any luck with ...
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0answers
24 views

Stability of internal Wireless module or adpater in Ubuntu

This is an update to my previous problem with wireless adapter or module in Ubuntu 12.04 on Thinkpad T400. Now I have installed 14.04. Sometimes when I move my laptop around a little, the ...
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0answers
20 views

Ubuntu server install hangs at “retrieving grub-mount-udeb”

I am trying to install Ubuntu server on an HP Pavilion Media Center m8300f that I got from a friend, and it keeps hanging at retrieving grub-mount-udeb. I previously had Xubuntu on it, but now I just ...
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2answers
51 views

Learning resources for people interested in learning Linux [closed]

I am a B.Tech student and I would like to study Linux but don't know what I should study nor how to. The current priority of my college degree is C/C++, Java and .Net. They don't provide me with any ...
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3answers
927 views

Why does Debian bug-squashing take this much time compared to that of Ubuntu?

Reportedly, Debian devs need to squash 54 bugs more. These are termed as 'release critical bugs'. My question is, if this bug-squashing takes this much time, then how come Ubuntu releases each version ...
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1answer
36 views

Can tar discover the archive format when piping it in via wget?

When I have a tar archive of any format, I can use: tar xf archive.tar.xz tar xf anotherarchive.tar.gz as tar discovers the relevant format by itself. Now I want to download the archives and ...
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40 views

Setup public IP address on LXC container

Can anyone tell me how to setup a network interface for each LXC container so that each container can have its own dedicated IP address? Here's what the /etc/network/interfaces file on my host node ...
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1answer
86 views

PCI card reader stopped working after upgrading to Ubuntu 14.10

Here's my configuration: sudo lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06) 00:02.0 VGA compatible controller: Intel Corporation 4th Gen ...
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1answer
61 views

Kali For Music Production + Possible To Mix Distros?

I'm looking to install a Linux distro on my new computer. In the past I have had great experiences with Ubuntu Studio and Kali Linux, but had them both installed separately. I am wondering if it ...
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1answer
117 views

What exactly does logrotate do to apache log files? (apache 2.4 - ubuntu 14.04)

Other than a couple of basic VHOST's, I have default apache and apache logging configuration. Whenever I try to view my apache log files (error.log, access.log) I see that these files keep getting ...
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2answers
33 views

how to find URLs accessed by a process

Is there a way to monitor and get a listing of URLs accessed over HTTP by a process running in my local machine? Failing that, what would be closer to the above information? My use case is that I have ...
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0answers
301 views

Trying to install Ubuntu on MacBook Pro 5,3 - getting i8042 error

I'm a newbie to Linux trying to install Ubuntu via a USB stick on my 2009 MacBook Pro 5,3 currently running the latest version of Yosemite. Problem is, I'm getting a i8042: No controller found error ...
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0answers
15 views

Why APT shows inaccurate “Need to download” values?

Sometimes if I Ctrl+C during apt-get upgrade/install *** in terminal, or cancel Software Update UI in Ubuntu and resuming them later I see something like this (regardless the actual package) I ...
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2answers
38 views

grub partition error

This is the first time this has happened to me.I don't use linux on a regular basis, except for some project work. I had logged in today , finished my work and restarted it so I could go into windows ...
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1answer
101 views

hdmi not showing up in xrandr

Everything used to work until recently. Now, whenever I connect my HDMI monitor to my laptop nothing happens. Running xrandr doesn't show the HDMI output. Can anyone help out? I've been trying to fix ...
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0answers
37 views

Why does my SD card need authentication to access?

I'm running Ubuntu 14.04 on a Toshiba Chromebook 2 via crouton. I recently reformatted a 256GB SD card that I keep in my chromebook at all times. My problem is that every time I try to access my SD ...
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1answer
27 views

Need help selecting networking option in VMware workstation

I am a complete noob in this area, so I really need help and advice. I am trying to setup something like a VPS on my computer. What I will do is: 1) Install vmware workstation on my computer 2) ...
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1answer
46 views

Installing Node.js on a remote LAMP server with no internet connection

As a part of a student project, I am to host my Node.js-based server application on a server so that other people can try connecting to it and test the integrity of it's functions. The problem is that ...
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1answer
86 views

Unable to start ubuntu after installing updates - Stuck at 'Try (hd0,0)'

I've installed Ubuntu 14.04.2 LTS on the same hard drive as my Windows 8.1 OS, on its own partition. The installation went without any hickups. After that I used EasyBCD on my windows system to ...
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260 views

Linux Mint/Ubuntu - hybrid graphic card drivers (AMD® Radeon HD 8570 + Intel HD Graphics 4000)

I am always trying to find answers for my problems with Google, but this time I give up. I've read almost every topic on every discussion board, blog posts etc. about my problem. I've tried many tips, ...
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1answer
71 views

Can't run binary executable on Ubuntu 12.04

I get the following error: ./cataclysm: command not found when trying to run this executable on a Linux server over SSH. When I run ldd cataclysm, I get: linux-gate.so.1 => (0xf7759000) ...
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0answers
25 views

Cobbler+Ubuntu: Client can't find preconfiguration file

Trying to install an Ubuntu 14 host with cobbler. The host boots and configures the ethernet interface (I can ping it), then errors out with "Failed to retrieve the preconfiguration file \ The file ...
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1answer
24 views

unable to locate package software-centre on chromebook [closed]

I've just installed Ubuntu via crouton on my hp chromebook 14, but I need to install software centre as I can't do anything without it. I try to run apt-get install software-centre but it returns ...
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0answers
21 views

Thunderbird: server connection slow after restoring backup on Mint

I've made a copy of the .thunderbird folder in my home directory (on Ubuntu 12.04) and restored that backup on a freshly installed Mint 17.1 Cinnamon using the Profile Dialog of Thunderbird. ...