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.

learn more… | top users | synonyms (1)

1
vote
0answers
9 views

Files are opened by wrong applications if opened from a number of programs

History: I had problems with mime associations under Firefox. Firefox opened downloaded files with wrong programs. I deleted ~/.local/share/applications/mimeapps.list and now it works. Now I noticed ...
0
votes
0answers
7 views

uploaded file via filezilla to proftp server(on ubuntu 14.04 lts) but reported 550 error

uploaded file via filezilla to proftp server(on ubuntu 14.04 lts) but reported 550 error 550 download.html: Permission denied Error: Critical file transfer error I try to set the directory to ...
0
votes
0answers
5 views

Simple QoS configuration with PRIO Qdisc is not working

Im using Ubuntu 12.10 OS and i want to prioritize ICMP traffic over any other traffic in the egress queue of eth0 interface (as it is my default route to internet). By default this is the qdisc ...
0
votes
0answers
26 views

Wrong mount point for internal SSD

I am having a problem with mounting an internal SSD. For some reason The mounting point is chosen as /media/user/Data instead of, as specified in /etc/fstab, /mnt/Data. The according line in ...
1
vote
0answers
20 views

How to connect tata photon in X window manager in ubuntu 14.04 using command line

Due to some reason I had to shift from Gnome to X window manager. So here on the desktop nothing appears (no launcher, no menu bar, nothing) but we can open command line in it using Ctrl+Alt+Tab. (I ...
-1
votes
0answers
15 views

Switching between two ISP [on hold]

I am managing my college's server. We have two Internet Service Providers- BSNL(1 GBPS) and Reliance(75 MBPS).when BSNL line is slow than Reliance it should automatically switch from BSNL to Reliance ...
0
votes
0answers
7 views

HDA Realtek and Auto-Sensing Disable

I have a couple different devices using Realtek audio chipsets (one is ALC269VC, another is ALC262). On both devices (laptop/tablet type devices, with internal speakers and a headphone jack) when I ...
4
votes
1answer
85 views

Can We Use Linux Mint ISO To Repair Ubuntu's Grub?

One Of My Friend is Running Ubuntu And Got GRUB RESCUE So Can use Mint ISO to Repair his Grub ? As I don't Have Ubuntu ISO ?
1
vote
4answers
365 views

Why do we use double hyphen in “tar --anchored” and single hyphen in “tar -b”? [duplicate]

Why do we use double hyphen in tar --anchored and single hyphen in tar -b? I mean to say why some command line options have single hyphen (-) while some others have double (--)? Also a git example: ...
1
vote
2answers
29 views

Ubuntu: where add a script executing SQL on machine start?

Each time Ubuntu is starting I need to run a script, which is running some SQLs. So I need run it after MySQL already started. Where should I put such script?
1
vote
2answers
3k views

D-Link DWM-156 HSPA USB Modem doesn't work with SIM card inserted

I have a D-Link DWM-156 HSPA modem, that I bought just a few days ago. The modem has drivers in its internal storage. There are Debian packages (.deb) for both i386 and amd64, so obviously I installed ...
0
votes
0answers
11 views

Beaglebone: Backup image mounts root as Read-only

After I had completed creating applications for my BB white (running ubuntu), I created a backup of the SD card using-> sudo dd if=/dev/disk2 of=/Volumes/BONE/bone_custom.img Recently, I tried to ...
0
votes
0answers
38 views

Xlib error “extension ”GLX“ missing on display” on VirtualBox guest OS

I have a remote build-machine with Jenkins and I'm trying to run GUI application. In Jenkins I installed Xvnc plugin, which uses TightVNC Server, but each build has failed. Earlier, there was a ...
0
votes
1answer
22 views

Recover file from previous installation? [duplicate]

I recently wiped an old ubuntu server of mine and installed debian, but i forgot to backup a very important file. I know there is a chance that the computer has already wrote over the file, but what ...
1
vote
1answer
383 views

Make bluetooth device invisible / disable incoming pairing

I am using the bluez package for my bluetooth usb dongle on ubuntu server. I want to be able to initiate bluetooth connection from the dongle to a device, however a device itself shall not be able to ...
2
votes
2answers
826 views

No sound on Ubuntu 11.04

I have a problem on my notebook (MSI E-620) running Ubuntu Natty Narwhal x86. When I installed it there was just output, when I plugged my headphones in. The speakers in my notebook do not play ...
0
votes
0answers
27 views

Why there are two different shadow files preset in /etc [duplicate]

I am running ubuntu 12.04 on rackspace cloud. Somehow it has two shadow files /etc/shadow /etc/shadow- I know about the first being used for password protection but where second came from ? Can it ...
0
votes
1answer
17 views

Bridge internet connection from computer to ubuntu server [on hold]

I have a computer connected via wifi to the internet and the ethernet connection is now connected to my server. What I'd like to do is bridge the connection from my computer (wifi) to the ethernet ...
0
votes
1answer
9 views

FS wont mount at bootup and when using certian commands [on hold]

I am using this line below in my fstab file to mount sda2 but I am having some problems mounting it. At boot up it fails to mount. If I run mount -a it fails to mount. Says I need to be root, which is ...
3
votes
1answer
900 views

After installing a new Kernel in Ubuntu 14.04, rebooting takes me to busybox initramfs. How do I mount a filesystem after that?

I have a virtual machine with Ubuntu 14.04 in it. I recently built and installed linux-3.14.5 kernel on it, and tried to boot into it, but it drops me to BusyBox v1.21.1 built-in shell. Here's what I ...
0
votes
0answers
20 views

unable to run bash as new user on an ubuntu docker container

i have a docker container and i am trying to enable sshd and log in with a new user rag. it appears that as user 'rag' i am not able to execute /bin/bash. i am not sure why. i cannot figure out ...
0
votes
0answers
44 views

Grub: can't enter Windows 7

I want to install ubuntu using easyBCD and ubuntu ISO file, after some configuration, I set the default boot to Grub instead of windows7. But I forgot to run command sudo umount –l /isodevice to ...
2
votes
1answer
323 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 ...
0
votes
1answer
23 views

how to bootup/reboot in verbose mode?

I have Ubuntu 14.04TLS. How can I permanently change grub to switch to verbose mode on bootup/reboot so I can see the rolling text? I would like to make this change stick. Thanks!
2
votes
0answers
42 views

Why iperf still reports 1Gbps performance when using bonding over two 1Gbps adapters?

As I understand it, bonding brings among other benefits the ability to increase the network speed between two machines in a LAN. Bonding [...] means combining several network interfaces (NICs) to ...
2
votes
1answer
2k views

Linker error: /usr/bin/ld: cannot find -lgcc_s

I am trying to compile symlinks (tar.gz-file), which is a very small tool with one line for compilation: gcc -Wall -Wstrict-prototypes -O2 -N -s -o symlinks symlinks.c which gives the error .... ...
1
vote
0answers
18 views

Ubuntu: Restore not printed document from browser cache

I was at work today faced with a situation where I have to prove that I did not make a mistake. Without going into detail, yesterday I generated an important document which was to be printed. For ...
2
votes
3answers
76 views

Are there network connections that don't use the WiFii card or the Ethernet port?

I see many connections like when I use netstat, are they all to the internet? Are there any connections to the internet or other things that aren't forthcoming? I guess what I'm asking is what does ...
1
vote
1answer
2k views

How to fix unreliable Realtek Wireless card on Ubuntu 13.04

I have a Realtek RTL8188CE wireless card and it works fine when I have a strong signal, but if I get even slightly away from the wifi I lose connectivity even though there is a strong Rx signal. I ...
4
votes
1answer
3k views

Firefox: use system proxy settings, but where are these?

Running Ubuntu 13.10, Firefox is configured to use the system proxy settings, but it seems it fails to pick them up. The computer is connected to the network, and it's possible to establish a ...
3
votes
2answers
3k views

Ubuntu password policy

I want to set the system-wide password policy on an Ubuntu 12.04 LTS server. Googling around, a lot of people point to this (very old) document: ...
1
vote
1answer
308 views

How do I change file/directory permission of a nfs mounted directory, so I access files as user?

On a Ubuntu computer I mounted a directory from another computer using the following line in the fstab: 12.34.56.78:/space/Images /mnt/space/images nfs rsize=16384,wsize=16384,rw,auto,nolock 0 0 ...
0
votes
0answers
42 views

How to stream from router-connected USB NAS to latest Linux Mint laptop? [closed]

I started using Linux Mint on my laptop, I dumped Windows. I love it, found Cinnamon very easy to use. How do I stream movies from the USB NAS (WD passport) that's attached to my router to Mint? I ...
3
votes
0answers
38 views

Why doesn't Ubuntu use capabilities on ping?

After running, $ ls -l /bin/ping -rwsr-xr-x 1 root root 34740 Nov 5 2012 /bin/ping I wonder, why doesn't Ubuntu use capabilities (i.e. raw sockets) rather than setuid?
0
votes
0answers
35 views

USB drive stopped working

My USB pen drive (A-data UE700 64GB) suddenly stopped working. I tested it on few PCs (every one with Linux) and it doesn't work on any of them. The device isn't even mounted. It used to work alright ...
0
votes
2answers
270 views

nodm not working on bootup

I've setup and used nodm in the past (it is extremly simple and easy), but now cannot get it working. My base system is Ubuntu 13.04 server, but I have tried Debian and older Ubuntu servers as well. ...
18
votes
4answers
2k views

What makes CentOS “enterprisey” compared to “generic” distributions like Ubuntu?

What makes CentOS "enterprisey" compared to "generic" distributions like Ubuntu? When I say "enterprisey" I actually mean "better for server deployments". Just a general question, because I was ...
2
votes
1answer
41 views

Serving webpages with Apache on Ubuntu server

I've set up an old machine running Ubuntu server 13.1. I can access it remotely with webmin and I was able to install apache that way. What I would like to be able to do is to put web pages and be ...
5
votes
0answers
46 views
+50

How to write/edit/update the OsIndications efi variable from command line?

In the need to enter the UEFI firmware setup utility while using ultra fast boot (keyboard drivers are not loaded during POST), I wish to write to the "Os Indications" efi variable. My OS is Ubuntu ...
0
votes
1answer
93 views

How to install QGIS from source into user space?

I want to install QGIS from source on Ubuntu 13.10. (saucy). into ~/bin. There is Python 2.7.5+ installed. Therefore, I cloned the repository to my machine and checked out the master branch. First I ...
-2
votes
0answers
24 views

Failed to load session Ubuntu and to fetch .archive.ubuntu.com

was downloading some updates like almost every day and a message about some files to remove or replace I think (I'm not sure) that I've accepted to replace without knowing I confess what is it about, ...
0
votes
0answers
30 views

elementary os on ubuntu

I have installed Ubuntu 14.04 on my laptop I tried to install Pantheon desktop enviroment because I tried it on the elementary os before and I liked it but the last version of elementary os is ...
1
vote
1answer
36 views

Ubuntu How to re-install bootloader

I accidently altered my partition table. Somehow I wiped it out completely and changed the disk label. The system has not been rebooted yet and I managed to rebuild it the way it originally was using ...
3
votes
1answer
79 views

Set Ubuntu System Proxy Settings without Restart from commandline

I am using Ubuntu 14.04 . I want to change the http proxy settings from the command line. This should be equivalent to changing in the GUI(All Settings->Network->Network Proxy) and clicking the button ...
1
vote
1answer
124 views

Audio cuts in and out after upgrading from Ubuntu 12.10 -> 13.10

So my audio was working perfectly fine (XBMC, VLC, Flash in Chrome, etc) before the upgrade. Now that I've upgraded, I can still play audio, but it plays for a second or two at a time before cutting ...
1
vote
0answers
16 views

ActiveMQ doesn't start on Ubuntu 14.04

One of the packages which seems to be plagued with problems is activemq. After installing it, it's necessary to enable one of the queues with a simple symlink: sudo ln -s ...
1
vote
1answer
47 views

Using upstart with stop unknown instance

I'm just getting into upstart so i wrote a very basic script just to print to log file called: vm-service.conf that I put in /etc/init: description "Virtual Images" author "Me" start on ...
1
vote
1answer
20 views

How to set up Motion to access my copied config file?

As suggested in this tutorial I made a copy of the Motion configuration file in my home folder under ~/.motion/motion.conf . But Motion then still tries to access the config-file under ...
2
votes
1answer
357 views

Ubuntu - Booting black screen with purple border

After the installation of Ubuntu, when I try to boot a black screen with a purple box appears without let me see the GRUB menu. Then the screen becomes black and Ubuntu starts booting. Ubuntu is the ...
-3
votes
0answers
47 views

How to make a Linux Application? [closed]

I want to know how is an application developed in Linux doing Python Programming.. I have no idea about what tools are used to make a linux executable application. I am using Ubuntu14.04.