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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11
votes
1answer
2k views

What happens in each step of the Linux kernel-building process?

I've read many tutorials about how to build custom kernels and boot Ubuntu using those kernels, and successfully followed the guides and booted custom kernels, but I have no understanding about what ...
2
votes
1answer
249 views

Weird issue with unmet dependencies when cloning package states from earlier installation on same machine

I've been doing the usual routine of saving the package selections and also marking the packages as auto or manual as outlined in the question and answer here: Restoring all data from backup of dpkg ...
0
votes
3answers
246 views

Directory appears as file?

So we copied some photos in a directory across to a NTFS partition last night, and they were viewable from ubuntu. Today the directory is not accessible from Windows, and when we booted back into ...
6
votes
1answer
1k views

Creating UFW rule to allow application to use dynamic ports

I am currently trying to get a Google Chromecast device to work through my Ubuntu 13.04 based computer. Currently, the Google Chrome extension shows "no devices found" as long as my UFW firewall is ...
1
vote
1answer
60 views

How to check for a folder inside a particular folder in shell script?

I am working on a shell script and python script as well. Python script is passing certain parameters to my shell script and then I am using those parameters in my shell script. Below is my shell ...
2
votes
1answer
42 views

Why does fstrim trim all of the free space on my mdraid mirror after a reboot? [duplicate]

I have a server with 2 SSDs: Model Family: Intel 520 Series SSDs Device Model: INTEL SSDSC2BW240A3F Firmware Version: 400i User Capacity: 240,057,409,536 bytes [240 GB] Sector Size: ...
1
vote
0answers
54 views

Ubuntu recognize my hard drive as “ FREE Disk ”

I'm newbie in Linux world but I'm a big fan of Ubuntu. I've bought a new laptop ( TOSHIBA C55D-A-13Q ) and it had Windows 8 64-bit pre-installed . I tried to install Ubuntu alongside it but it ...
1
vote
2answers
937 views

Ubuntu Server: Already have LAMP installed, how do i install and set up Django?

Alright, so i've been struggling with installing and configuring Django for months now. I have reinstalled Ubuntu Server countless times because of my fails. I keep messing up some way every time. ...
2
votes
1answer
256 views

Low PPPoE speed in Linux (Ubuntu)

We have 2 PC with Ubuntu 12.04 and connect with 1000M/bit cable. We then start iperf on both PCs and get 900m/bit speed using the iftop tool. However, when we setup PPPoE server on the 1st PC, and ...
-1
votes
1answer
104 views

Difference between Ubuntu and Linux Mint

Can someone please tell me the differences between Ubuntu and Linux Mint ? I thought they were almost the same thing until I downloaded Ubuntu 13.10 versions of softwares for my Linux mint 16 ...
1
vote
1answer
15 views

How to stop many process like unicorn and sidekiq using single command in certain environment

I am using Ubuntu 12.04. I remotely access remotely EC2 instance, i will stop and start unicorn and sidekiq by following commands cap development unicorn:start cap development unicorn:stop cap ...
3
votes
1answer
234 views

Having trouble exporting FUSE via NFS

I've got a self-written FUSE file system I mount on my NFS server on mountpoint /export/example/mount. Then I export a parent directory of the FUSE via NFS. The /etc/exports contains the options ...
1
vote
1answer
208 views

Alternatives to Unity panel

Is there an alternative to Unity (top) panel that supports Mac style application menu integration? I'd like to have a Unity-like user experience on Debian.
1
vote
4answers
1k views

Crontab not working

I'm trying execute a basic shutdown crontab to run M-F at 10PM. So I did the following: sudo crontab -e Once inside of the crontab I added the following line: 0 22 * * 1-5 shutdown now The job ...
3
votes
1answer
422 views

Noninteractive script running over ssh is interrupted as apt-get finishes

When I run the following non interactive script on Ubuntu Server 13.04 it's interrupted when lxc-docker package finishes installation. Script : ssh -o StrictHostKeychecking=no -t -t -i $CERT ...
3
votes
1answer
57 views

Can't enable TRIM on SSD

I can't enable TRIM on my newly-installed SSD. Ubuntu Server 12.04, Linux 3.11.0-15-generic. I turned TRIM on through discard setting in /etc/fstab. Also TRIM doesn't work with fstrim command. Here ...
3
votes
1answer
385 views

“Live” Processor hang under Ubuntu 11.10, how to diagnose/fix?

We recently upgraded to Ubuntu 11.10 on a virtual server. Since the upgrade, the server will periodically "hang" with processor use at zero (according to monitoring). Monit is still running and ...
0
votes
2answers
370 views

Linux Permissions vsftpd

I have mybb installed and running in /var/www/forums. I have two users part of the www group, logan and www-data. I have the recursive permissions of forums directory set to: chmod -R 755 forums ...
0
votes
0answers
17 views

How to use UPSTART feature of ubuntu to restart the python script but not as root?

I am running my Python script using upstart feature of Ubuntu so that if for whatever reason my Python script dies or gets killed, it can be restarted automatically and everything is working fine - ...
0
votes
1answer
468 views

Enable wifi monitor mode on Samsung Chromebook

I want to buy the Samsung Chromebook and use it with Ubuntu (12.10). I also want to play around with airmon-ng and thus want to use the wifi card in monitor mode. I didn't find any information if ...
3
votes
1answer
45 views

How to limit a user's RAM on Ubuntu? [duplicate]

I currently have a "friend" that has an account on my dedicated server which is running Ubuntu. Not getting into specifics, but he said he will use ~2gb max and he's using ~10gb. On to the question. ...
7
votes
4answers
6k views

Why is this python error message generated whenever I type a nonsense command?

Whenever I type any "nonsense" command, this python error message is generated. Normal commands work fine. Any idea how to debug this? $ somenonexistingcommand Traceback (most recent call last): ...
0
votes
1answer
32 views

Which Desktop Linux version can run decently on For P4 & 750MB Ram

I just installed Ubunta 13.10 on an old P4 with 750MB Ram, but the system is running too slow to be used for anything. I had XP running on it and worked fast enough to use, but I decided I wanted to ...
1
vote
1answer
249 views

Kernel freezes on loading ramdisk. How to find out what's wrong?

I'm using an Ubuntu Server (13.04) Minimal installation (with the Xubuntu Metapackage as a desktop environment, if that matters) on x86_64 on my Samsung notebook. I'm currently forced to use the ...
1
vote
1answer
1k views

Windows Remote Desktop login failed with Ubuntu Server 12.4

So, I have a server that I have RDC (Remote Desktop Connection) set up on, and I am looking at making it globally available on the internet so that I can access it from anywhere. I am currently in the ...
1
vote
2answers
40 views

ubuntu + how to install the patch command

Please advice how to install the patch command on Ubuntu Linux I download the following file , patch_2.6-2ubuntu1_amd64.deb ( from site - http://packages.ubuntu.com/lucid/patch ) But not clearly ...
1
vote
2answers
45 views

Registering Ubuntu Client With Spacewalk

Right now I'm just testing the process for some desktop machines I'll be managing so I have a fresh install of Ubuntu 12.04.04 LTS. We have a non-satellite spacewalk server that I'd like to have ...
0
votes
3answers
291 views

Memory Mapping Linux 3+ kernel

Can some one help me understand how memory mapping is done Gone through this Why does Linux show both more and less memory than I physically have installed? but still i am not able to understand ...
0
votes
0answers
19 views

Ubuntu + CISCO VPNC CLIENT for my new ubuntu version (32 bit )

I have newest Ubuntu Linux version 10.04.4 (32 bit ) I want to install Cisco VPNC client on this linux machines in order to connect to other customers I little confuse , which VPNC cisco version ...
1
vote
1answer
36 views

Make a “java -jar file.jar” run at startup

Hello I am running a kubuntu 13.10 distro, but I guess my question is pretty general...how to make a .jar execute in background at system start?
2
votes
1answer
320 views

Wifi broadcom 4313 with proprietary driver (Ubuntu) randomly stops connecting to wireless networks

I have a laptop with Broadcom 4313 wireless module, using Ubuntu 13.10 and Windows 7 as OS When reconnecting to network or when waking laptop from suspend/rebooting it sometimes cannot connect to any ...
1
vote
0answers
20 views

pdf viewer for text documents saved as images — bad rendering

The situation I have in mind is a .pdf document obtained from a scan, so that many readers view it as an image (as opposed to text) and render it badly (see the screenshot below) My personal user ...
2
votes
2answers
34 views

Newly compiled kernel not booting up (vanilla kernel 3.12.14)

I downloaded, configured and installed kernel downloaded from kernel.org. While booting up this new kernel for the first time, this error screen shows which is pointing towards a missing or wrongly ...
1
vote
1answer
218 views

Trouble installing or booting into Ubuntu or Fedora using a live USB or DVD on a new Lenovo E31

I've tried a live USB with Ubuntu 12.04.1 (both i386 and AMD 64-bit) as well as 11.10, as well as Ubuntu 10.04 on a DVD and Fedora 17 on a live USB. In all cases, selecting the option to boot into ...
0
votes
2answers
37 views

Make Ubuntu acknowledge that a custom built version of PHP is installed

I'm trying to install PHP from source code on my Ubuntu 12.04 VPS. I'm installing PHP like this: Download the latest version from the php.net website. Configure it using the parameters below. ...
4
votes
1answer
64 views

Why is this static route not taking effect?

Original Question I am running Ubuntu and network manager. I have two different interfaces, eth0 and eth1. Network manager has (as far as I can tell) correctly added this manual route: ~$ ip route ...
3
votes
2answers
3k views

eth0 not being configured automatically

When I start an ubuntu 12.10 instance, eth0 is NOT getting configured. davidparks21@MySqlDB:~$ cat /run/network/ifstate lo=lo When I manually edit ifstate and add eth0=eth0 and service restart ...
3
votes
1answer
338 views

BCache and disk encryption

I recently bought a new laptop with a 16Gb mSATA SSD cache drive. I haven't used that one yet. I have, however, opted for Ubuntu 13.04 with "Full Disk Encryption" for the main partition (is that ...
-2
votes
0answers
13 views

Changed permissions on /usr/lib [duplicate]

I changed permission on /usr/lib by doing a recursive call to chown by using sudo. And after that, the system has just been weird. I don't have any network/audio interfaces working; pretty much the ...
2
votes
2answers
34 views

Different sites on different interfaces using link aggregation

I read about Ubuntu Bonding and how it allows to bond multiple connections to get several advantages. My requirements is this : I want two different interfaces at a time (A wifi and other Ethernet) ...
0
votes
0answers
25 views

How to uninstall xFreeRDP v1.2.0-beta1

I installed a new version of xFreeRDP (because new options are not available from the version in the default repositories) using the instructions here: https://ifconfig.dk/freerdp/ I want to ...
5
votes
2answers
461 views

No panels in Ubuntu? libcanberra-tk cannot open shared object file

I booted up Ubuntu and have a background but no panels. Everything else seems to work fine, I can get into terminal and run Firefox for instance. I can create folders on my desktop, etc. I'm new to ...
5
votes
2answers
274 views

Unable to login via ssh after several months

I have a Dell Poweredge running Ubuntu 13.04 in my office to serve up an interal web-app address system. It has been at least a 2 months possibly 3 since my last login. Everything is running great, ...
1
vote
2answers
65 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: ...
0
votes
1answer
238 views

Anti Aliased Fonts with NoMachine NX

I am running nx server on a headless ubuntu server. Its desktop is to Unix -> Custom -> Emacs which gives me an Emacs window on the local machine. The only thing that does not work as expected is the ...
0
votes
2answers
682 views

Linux Ubuntu / Mint Live CD user-home customization

I'm trying to customize Linux Mint Live CD with these instruction (uck doesn't work for me). What I want is to have more icons at its Live CD user (/home/mint/Desktop) but I can't find /home/mint on ...
2
votes
1answer
459 views

How do you fix apt-get update “Hash Sum mismatch”

I have an Ubuntu 12.04 virtual box vm that I instantiate using Vagrant. git clone https://github.com/spuder/puppet-gitlab vagrant up As soon as the vagrant box runs apt-get update, I get the ...
0
votes
2answers
2k views

can't start x11vnc without attached monitor

I'd like to setup x11vnc (or any other vnc server) to start at boot-time. The display manager is kdm, the distribution is Ubuntu 12.04.2 LTS. When I try to start x11vnc, I'm getting this errors: $ ...
0
votes
1answer
53 views

Recursively delete hidden directory & its files?

I want to delete all hidden directoris from a directory and its sub-directory. I also use rm -rf .directory_name this command is iterative command I want to a recursive command. Please anybody help ...
5
votes
4answers
6k views

FTP client with a good GUI?

I love linux because I get control over my system. But I do herald from the school of mac, where things are simple, beautiful, and powerful. I like it that way, as opposed to having lots of knobs and ...