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.
2
votes
1answer
32 views
How can I set up a usb printer as a network printer using a linux server?
Basically right now I have a USB only printer, it's very nice. There are 5 people in my household and we all are constantly wanting to use the printer. Windows has a built in way to share the printer, ...
0
votes
0answers
9 views
My APC opcode cache stopped working without a clearly identifiable cause
My APC 3.1.13 had been running fine for weeks, and today, it stopped working after I restarted PHP5-FPM. If I check out my apc.php it shows it caches some files, and then it just stops caching. I ...
2
votes
0answers
14 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 ...
1
vote
0answers
39 views
Why does this code work on Linux but not on SunOS? [migrated]
#include <stdio.h>
int main() {
char *str = "11111111-22222222 r-xp 00000000 00:0e 1843624 /lib/libdl.so.0";
unsigned long long start_addr, stop_addr, offset;
char* access = NULL;
...
2
votes
0answers
22 views
Fedora 18 guest in VirtualBox 4.2: How to assign static IPv4 address to guest regardless of active ethernet interface on host
I have a Ubuntu 13.04 host running VirtualBox 4.2.12. This host has both a wired and a wireless network interface, but only one of which would usually be active at any given time. For example, at home ...
2
votes
0answers
18 views
Alt+tab key not working in NX client for linux
I am using NX clinet-3.5.0-7 version running on ubuntu 12.04. I am trying to use Alt+Tab key to switch between different terminals on my NX client but I am unable to do so. When ever I use Alt+Tab, it ...
0
votes
0answers
23 views
How to install gnome-shell for ubuntu 12.10 without error [closed]
kanha@kanha-Aspire-5580:~$ sudo apt-get install ubuntu-gnome-desktop ubuntu-gnome-default-settings
[sudo] password for kanha:
Reading package lists... Done
Building dependency tree
Reading ...
0
votes
0answers
12 views
Can't download Gnome 3 for Ubuntu 12.10 [migrated]
How can I install Gnome 3 on Ubuntu 12.10? I tried to apt-get install gnome-panel, but it errors out because of unmet dependencies, even if I pass -f:
kanha@kanha-Aspire-5580:~$ sudo apt-get -f ...
2
votes
2answers
32 views
A secure way to confine FTP login users to a single directory
I needed to provide multiple users FTP logins, some able to write, some only to read, to a single FTP root directory. I very much wanted that they not see of the file system anything above that ...
1
vote
2answers
32 views
SSH agent loses keys after logging out
I added my SSH key having typed
ssh-add ~/.ssh/id_rsa
and ssh-add -l printed my key. But after logging out and logging in again I see
The agent has no identities.
I've tried setting a very ...
0
votes
1answer
85 views
Unable to set hostname for use within network
I am having a lot of trouble setting up a hostname for my home server for use within my home network. My home server is running Ubuntu 12.04 LTS and all packages are up to date. Management of this ...
0
votes
0answers
12 views
init:network-interface (lo) pre-start proc (664) terminated with status 1
Ubuntu server 10.04. I modified the file /etc/network/interfaces. Restarted the system.
system startup errors：
init:network-interface (lo) pre-start proc (664) terminated with status 1.
...
1
vote
1answer
30 views
upgraded to Ubuntu 13.04 Server, do-release-upgrade still shows
I upgraded my server to Ubuntu 13.04 Server a while ago. However, the notice that tells me there's a New Release '13.04' available. Run 'do-release-upgrade' to upgrade to it. still shows. Obviously, ...
-1
votes
0answers
14 views
Sierra wireless aircard 890 (Mobile broadband/ express card), how to either recharge and check balance of money
I'm using a mobile broadband, the Sierra wireless aircard 890 (express card) for 3G mobile connection. Everything is ok, the card's automatically recognized. But one thing that I can neither recharge ...
1
vote
1answer
44 views
How to find speed of wlan interface?
I'm trying to find speed of network interface using file-descriptor. It's easy to do it for ethX, just calling cat /sys/class/net/eth0/speed. Unfortunately this method doesn't work with wireless ...
1
vote
1answer
43 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 ...
3
votes
2answers
37 views
How do I detect wheter the audio cable is connected?
I'm using Ubuntu Lucid (10.04). In my shell script running as root I want to detect whether an audio cable (analog jack) is connected to the laptop or not. How do I do that? I don't need a portable ...
0
votes
0answers
21 views
How to use nVIDIA drivers on Ubuntu 12.04?
I am using Ubuntu 12.04 x64 on my ASUS G75-VW with nVIDIA GTX670M. I have installed nvidia drivers via terminal and additional drivers, terminal says nothing to upgrade, additional drivers shows that ...
2
votes
1answer
31 views
Add Ubuntu to list of Grub boot options
I have an old laptop with an old version of Debian. I would like to install Ubuntu as well. Is it possible to install Ubuntu from the HD (not a rescue CD or flash-drive) and have it reside as a Grub ...
2
votes
1answer
42 views
How to set-up a online SVN server on my laptop
I had created a local SVN server on my laptop running Ubuntu 12.04 and its working perfectly fine. Now I want to make my laptop as server for some valid users who can access my SVN server though ...
0
votes
1answer
32 views
Triple Booting; Windows, Ubuntu, Linux Mint by Windows Installer
I wanted to install Linux Mint 14.1 using the Windows Installer (mint4win.exe). I
copied mint4win.exe to HDD, and when I running it, it prompts me to uninstall Ubuntu. Previously I installed Ubuntu ...
0
votes
1answer
21 views
Half screen appears to have film on it. Acer C7 Chromebook running 13.04
Right side of the screen is not processing colors properly. Does not show up in white space but when colors deep colors occur the right side is lighter and it seems to be a bit blurry as well.
I ...
0
votes
1answer
44 views
building/compiling kernel headers
I am compiling kernel 3.4 and 3.8 for different target devices. I would like to install compat wireless driver which requires kernel header. Could anyone tell me how I can compile/build the kernel ...
1
vote
1answer
25 views
UART0 Access in AM1808 using Embedded Linux
I am trying to interface GSM module with my AM1808 processor.
I am using gcc compiler as well as UBUNTU 10.04 Lucid.
I have configured the TXD and RXD pins of UART0 but i can not access the RTS and ...
3
votes
1answer
28 views
Ubuntu filesystem buffers/cache always empty
I have a virtual server with ubuntu 10.04.4 LTS and plesk (preinstalled by hosting company).
Now i have seen that the buffers/cache are always empty.
Current uptime is 22 days. free and htop shows the ...
0
votes
0answers
17 views
keyserver timed out when trying to add a GPG public key
I am trying to add a public key for installing a program with CPG. But i am pretty new to this but every command i found gave me the same error:
gpg --keyserver keyserver.ubuntu.com --recv-keys ...
0
votes
0answers
7 views
Unexpected Output Running Semaphore [migrated]
I'm trying to write a program that forks another process and stays in sync so that the first process doesn't start its (i)th iteration until the second process has finished its (i-1)th iteration. Is ...
1
vote
2answers
65 views
How to monitor the last PID assigned by the kernel?
To monitor process creation I'd like to periodically write the last PID assigned by the kernel to any process on the system (not just processes created by the PID-monitoring program) with a time stamp ...
0
votes
1answer
49 views
Set up an email domain with Postfix and Dovecot
I am very new to the Linux world so please forgive me.
I have a VPS running Ubuntu 12.10 x86 and I have installed Rails3, Nginx, Mysql and Passenger. All are up and running.
I want to set up mail so ...
17
votes
4answers
855 views
What doesn't need defragmentation? Linux or the ext2 ext3 FS?
Why don't you have to defrag a Linux system? Because it's using the ext2/ext3 file system or because it's Linux?
That's relevant, because a have a double boot system (W7 / Ubuntu) and a common ...
0
votes
0answers
39 views
Tracing system call on Ubuntu 12.04
The main task I have to carry out, is to trace the system call of processes in ubuntu 12.04 LTS.
Problem is, I am unable to trace them continuously, i.e. as soon as they are added to the system, they ...
0
votes
0answers
38 views
I need a step by step guide to build kernel modules in ChrUbuntu
I don't have experience building kernel modules. And worse, I'm trying to do it on ChrUbuntu, so it seems that I cannot follow the existing Ubuntu guides. For example, this command fails:
# apt-get ...
1
vote
1answer
85 views
Ubuntu make fails with No such file or directory /lib/modules/3.4.0/build
I am trying to build the CP210x driver for the 3.x.x kernel on ChrUbuntu.
Build instructions: Ubuntu:
make ( your cp210x driver )
cp cp210x.ko ...
3
votes
1answer
69 views
USB to Serial in Chrubuntu - /dev/ttyUSB0 missing
The usbserial stuff has been working so well for me in Ubuntu for a number of years that I have almost forgotten how to troubleshoot it. I just installed Chrubuntu, however, and now my usbserial is ...
3
votes
1answer
24 views
Window contents disappear after maximizing
Window contents usually disappear after Maximizing them! Especially Firefox. I'm running Ubuntu 12.10 on a Vaio Z56 laptop (graphics card: nVidia GeForce 9300M GS). I've read this question before and ...
1
vote
0answers
46 views
unable to connect intex 3.5g modem in ubuntu 12.04
Can anyone help me out on connecting usb modem in ubuntu? Here are the steps i have followed, initially it is recognized as a storage device and the modprobe cmd does not create any impact on it
...
0
votes
1answer
20 views
Is there a clang-snapshot?
I've just discovered the wonderful gcc-snapshot package for Ubuntu. I don't see a clang-snapshot or llvm-snapshot package though. Is there an equivalent for clang?
1
vote
0answers
20 views
Install man pages in directory with update-alternatives
Using update-alternatives(8) on a Debian system it is possible to add man pages as slaves under some master alternative.
For example, the following command installs an alternative man page tclsh.1 ...
2
votes
2answers
55 views
Lenovo ThinkPad E430 - 32 or 64 bit?
I just bought a Lenovo Thinkpad E430 and want to install Ubuntu in it. But I don't know whether I should install 32 bit or 64 bit.
Its core i5 3rd generation and 6gb ram (2 + 4)
2
votes
1answer
60 views
Running Ubuntu of a USB stick. Can't install wireless driver
I've installed Ubuntu 12.04 on my 8 gb USB stick, and got it running. It seems like I don't have the full Ubuntu OS on the stick though, and that was my intention. Anyway, I can run a "demo" version ...
0
votes
1answer
28 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 ...
2
votes
2answers
45 views
Finding yum equivalents of apt repositories?
I have code to setup an Ubuntu server that relies on apt-get. It has lots of packages as documented on our project wiki, for example these: development environment and the ruby dependencies.
However, ...
0
votes
0answers
17 views
Unable to connect Intex 3.5g modem in Ubuntu 11.04 [duplicate]
When I try to connect Intex USB modem firstly it is not displayed as a USB modem in networking panel. Then afterwards wen I try to manually add it, I get errors I have tried gnome-ppp and ...
0
votes
1answer
44 views
How to remove a package for the current user?
How can I remove a package for a given user but leave it installed so that other users can still access it? I'm using Ubuntu 12.10.
0
votes
0answers
39 views
Networking not working on ubuntu server 12.10 on B75MA-P45 mobo
Just got some new parts to but together a local dev server with ubuntu server 12.10 and I can't get networking working.
I have an airport extreme for my router and it works find with centos boxes I ...
1
vote
1answer
21 views
HAProxy should not forward an incoming request to down instance
In my scenario, I have 2 servers, both are communicating with HAProxy. When a request comes in, HAProxy splits the request and sends it to both servers, following a round robin method. If in any case ...
1
vote
1answer
64 views
How can I test whether the output from a command is null or empty string? [closed]
I'm trying to get a pre-commit hook script to work on our old SVN box.
It's very old, running Ubuntu Server 8.04.
This script:
@echo off
::
:: Stops commits that have empty log messages.
...
1
vote
1answer
46 views
Power consumption monitoring problem
I used powertop v.2.1 under Ubuntu 12.04 but it missed the power est. column.It's the same situation as described https://bugzilla.redhat.com/show_bug.cgi?id=796068 and that bug is supposed to be ...
0
votes
0answers
16 views
Software-center crashes in Ubuntu 12.10 [migrated]
I'm having a problem with Ubuntu Software Center. When I open it, it closes automatically without any permissions. When I run it in a terminal I get this:
vangjush@vangjush:~$ software-center
...
1
vote
1answer
61 views
LAMP Server setup for personal development
I am setting up a LAMP server in VirtualBox for personal development. This will be an Ubuntu Server 12.04 install, and I will be using Virtual Hosts for Drupal, Yii, and other small PHP apps. Ideally ...
