Ubuntu is a free open source operating system based on the Debian GNU/Linux distribution. Consider using http://askubuntu.com/ to ask questions about it.

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10
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5answers
13k views

What does “sudo -s” actually do?

I am using ubuntu 10.04. I notice that after I run "sudo -s" in terminal, the prompt changed from "XXX@XXX" to "root@XXX", seems it changed to root privilege. But when I check the ...
1
vote
1answer
1k views

Ubuntu: window title bar with minimize,maximize,close button keeps disappearing

I am using Ubuntu 11.04 64bit, Radiance theme, nothing fancy. A couple of times a day my window title bar with minimize,maximize,close buttons is suddenly missing (is there a name for this title ...
0
votes
1answer
803 views

Linux LiveUSB for Both Mac and PC

Can I make a LiveUSB with persistance that can boot on a Mac or a PC? I have heard about GRUB2 but I have been having trouble installing it. rEFIt can be installed on the Mac and used to boot the USB ...
0
votes
1answer
605 views

How can i mount fakeraid in ubuntu server

I got gigabyte chipset with an raid support. Currently I have 2 hdd's running in raid 1. When I was first installing ubuntu 11.04 server my fakeraid was detected, and I assigned a name for it in the ...
0
votes
2answers
51 views

editing music authors in whole catalog

Is there any program that can change in custom catalogue every music file author to the name choosen before start? Something for ubuntu pls. I need it 'cause I have lot of author name variants in my ...
1
vote
0answers
709 views

CUPS install/reinstall causes Ubuntu 11 to hang

I'm having a terrible time with CUPS. I've read every thread about this issue that I can find and none seem to help in the slightest. ely@zaffpants:~$ sudo dpkg --configure -a ely@zaffpants:~$ sudo ...
1
vote
2answers
4k views

How can I run Ubuntu on VirtualBox in full screen on Windows 7?

I use Windows 7 and use VirtualBox to run Ubuntu Desktop 11.04. I would like to run Ubuntu in full screen. But when I switch to full screen in VirtualBox, a lot of space around Ubuntu isn't used. Is ...
1
vote
1answer
668 views

Problem with Grub on Ubuntu 11.04

I have installed Ubuntu 11.04 along with Windows XP. Grub is installed properly. When the grub menu loads I get a moving message window saying my monitor is not in the optimum resolution of 1280x1024 ...
1
vote
1answer
108 views

How does MySQL usually get started?

I'm trying to ensure an app starts on boot up but after MySQL has been started. I can't however locate where MySQL is being started. If I do a chkconfig, it says MySQL is off, yet I can readily ...
1
vote
5answers
515 views

Access Windows files from Ubuntu

I have Windows 7 64bit and Ubuntu 10.04 dual booting on one machine. I'd like to access my Windows 7 files from within Ubuntu (and preferably vice-versa). I've not been able to find any tutorials ...
1
vote
0answers
305 views

ubuntu11.04 blackscreen when external monitor connected

my thinkpad x201i has ubuntu 11.04 installed. i try to connect an external monitor(a HP LCD) to the laptop. it worked at first time, everything is fine. but when i connect the monitor the second time, ...
0
votes
1answer
1k views

grub rescue prompt

Had win7 and ubuntu installed on laptop and inadvertently selected the recovery option in boot menu - exited and now all I get is error: no such partition grub rescue> set returns: ...
0
votes
2answers
533 views

Extra memory on EC2 [closed]

So, i'm looking at amazons high-cpu on demand instances, they have an 8 virtual core extra large high-cpu instance, but it only has 8GB of RAM. http://aws.amazon.com/ec2/instance-types/ I'm trying ...
1
vote
2answers
6k views

chmod sudoers without using sudo

I have lubuntu installed with persistance on a large usb flash drive, and somehow, My /etc/sudoers file has file permissions 0664, when ever I try to use sudo, it says : sudo: /etc/sudoers is mode ...
1
vote
2answers
266 views

How to open file to edit tw.pol in Ubuntu?

How to open to in unknown encoding to edit (tw.pol) in Ubuntu?
2
votes
1answer
149 views

Tail keeps snapping to the bottom after i scroll up with mousewheel

I'm having a problem with tail in Xubuntu (Xfce 4). In my previous ubuntu install (Ubuntu 9.10), if i was tailing a file with tail -f myfile, i could scroll up with the mousewheel to look at an ...
0
votes
2answers
389 views

What is the command that executes when you save image as… on the internet?

I'm trying to see if i can set up a command through compiz to where I attach a super+right click hotkey to auto pull up the save image as screen quicker or even eliminate the need to rename the image, ...
3
votes
1answer
542 views

PDT/PHP plugin in Eclipse in Ubuntu not working - “page not found” error

I am not having success getting the PDT (PHP Development Tools, SDK 2.0.2 and 2.1.2) plugin to work in Eclipse in Ubuntu 11.04. I encounter the following page when attempting to run a php file: Not ...
9
votes
4answers
10k views

Bash: lookup an IP for a host name, including /etc/hosts in search

Ubuntu 10.10+ In my script I need to lookup an IP for a given host name. If that name is listed in /etc/hosts, then command should print IP from /etc/hosts, not from DNS server. What commands I ...
0
votes
5answers
1k views

Is it possible to permanently disable internet access under Ubuntu?

I have to find a way to finish a horribly boring thesis and I'm a huge procrastinator and easily distracted. A very useful trick was going to the library with an old laptop of mine with Ubuntu 11.04, ...
3
votes
4answers
2k views

I have downloaded a Firefox 5 tar.gz package under linux. How can I install it properly?

How can I install the Firefox 5 tar.gz properly under an Ubuntu and Fedora Linux environment? Which folders should I put in? /usr/local or /opt/ Also, for those plugin .so files, where should I ...
0
votes
1answer
275 views

Ubuntu 10.04.2 - PATH not working in desktop environment, working in terminals

I need to add a directory entry to PATH env. var. I added at the end of both of my ~/.bashrc and ~/.bash_profile the line export PATH=$PATH:/home/user/apps/.... The change is working for terminal ...
2
votes
1answer
237 views

What to look for when investigating problems with horrible battery life (Ubuntu Linux)

I've got an Ubuntu 11.04 installation on a brand new HP dv6t laptop. When I pull the charger plug, the system knows that it's on battery and seems to apply the power management rules I've got set up. ...
1
vote
1answer
181 views

versatile unzip utility

Is there a compression utility that will allow extracting a file while skipping the first (container) directory. My purpose is to create an automated install script that will download a specific ...
3
votes
1answer
2k views

Properly portforwarding the external IP with iptables

I am trying to forward all the incoming internet/LAN requests on port 80 to my local machine (running Apache), current iptables work (forward incoming internet traffic to my desktop, but if I try to ...
7
votes
5answers
5k views

Free Chroma key tools [closed]

I want to create an educational introductory video, where the tutor stands and explain a subject, and the background is an illustration of that subject. This is done using a technique called Chroma ...
0
votes
1answer
178 views

Can I install Ubuntu on a USB stick when running it in a virtual machine?

Can I create (for example) an Ubuntu virtual machine, plug in my USB stick and then install Ubuntu on the USB stick from the Ubuntu running in the virtual machine?
1
vote
2answers
698 views

Hardware wifi is diabled, but there is no disable button! How can I enable it?

My Thinkpad 410s laptop has been working fine, running Ubuntu for quite some time. Yesterday, my wifi stopped working out of the blue. I've ran rfkill list and it shows the wifi adapter as blocked ...
6
votes
1answer
1k views

Full Disk Encryption with Two-factor Authentication for Ubuntu: How?

Background Information I'm a Linux newbie recently weaned off Windows. I'm currently using Ubuntu 11.04 without full disk encryption. Only my home directory is encrypted, and with eCryptFS. Lately, ...
0
votes
2answers
232 views

LiveUSB operational issues

I'm running UNETBOOTIN on my USB stick. Ubuntu 10.04.02 is running OK, but I have two usability questions: 1) Is there a way to enlarge the persistent storage now that I've found need for more than ...
1
vote
1answer
316 views

Sending mail from virtual host fails “mail for domain.com loops back to myself”

I have two servers relavant here: mail.domain.com (1.1.1.1) - which is the nameserver and the mail server for domain.com. www.domain.com (2.2.2.2) - which is the www subdomain for domain.com ...
1
vote
0answers
43 views

Raise Windows after release mouse button

windows raise after press (before release) mouse button in ubuntu. For this reason we can not make drag & drop when two windows are overlap . Is there is any way to do that a window raise when ...
8
votes
3answers
1k views

Creating an OS X PKG file on Linux?

I have Debian / Ubuntu / Xubuntu. I'm trying to distribute and run a Python file with the least number of clicks for the end user. How do I create a PKG file for Mac OS X on Linux?
4
votes
2answers
5k views

Ubuntu 11.04 server iptables port forwarding

I'm pretty new to iptables. My server has two Ethernet cards (eth0, eth1) and an ADSL router that is in bridge mode connected to the eth0 which created ppp0 when dialed. I'm trying to forward ...
0
votes
2answers
250 views

Live Ubuntu boot from a CD/USB drive

I was wondering, If I boot by laptop, a Windows-7 x64, (present at my work place and which is connected to my work network which has internet connection) from a Live Ubuntu CD or a Live USB drive, ...
1
vote
0answers
219 views

Realvnc does not refresh Ubuntu

I used REAL VNC to connect to a ubuntu machine. I can get it to connect however my remote window does not refresh at all and does not respond to mouse clicks. After a bit of debugging I found that in ...
0
votes
1answer
767 views

Enter key does not work anymore. How do I assign a keyboard shortcut to the Enter key in Ubuntu?

My whole keyboard works except the Enter key (what I did to it was complicated to explain and stupid). I'm using Ubuntu 11.04. What can I do ?
0
votes
4answers
64 views

Ubuntu seperate user account internet conncetion

I have two user accounts on my ubuntu machine. I want to be able make downloads on one account, while I am working on my other user account. Is it possible ?
0
votes
2answers
157 views

Where can I find which motherboards which cooperate with linux

Where can I find motherboards (or chipsets) which works with linux (DDR2 & DDR3). Can ubuntu use whole 4GB of memory?
-2
votes
1answer
130 views

Dual screen eligiblity

Given I am running ubuntu 10.10 with the following configuration, do you think I am eligible for a dual screen setup? Intel Corporation 4 Series Chipset DRAM Controller (rev 03) 00:02.0 VGA ...
1
vote
3answers
692 views

GVim flickers where it would normally sound a bell

When I try to (for example) scroll down past the "end" of the file, using pageDown or the down arrow key, GVim would traditionally make a sound. I have disabled this, but another annoying thing it ...
0
votes
1answer
149 views

Am I taking a performance hit from virtualizing in an Ubuntu Host installed via wubi?

I decided recently that since I virtualize all my programming environments there is basically no reason for me to be running Windows as a host OS. So, to get me started I installed Ubuntu via wubi and ...
1
vote
1answer
1k views

Ubuntu Moving root folder to a new lvm partition

I began running out of space on my / partition*. So I decided to create a new lvm partition and move to that one instead. Now, I have created the lvm partition, mounted it, rsync folders from / to ...
0
votes
2answers
1k views

Send email about status of cron job completion

I have some scripts that do usual stuff like backing up MySql database, gz, tar some files and put them on FTP or sync with some other backup/mirror system. Some scripts are running quite frequently ...
4
votes
1answer
3k views

How to do a hexdump of first track of HDD?

How would i do a hexdump in Ubuntu for the first track of a HDD? I am looking for a winhex-esque output if that makes sense. The first track has 63 sectors, each 512 bytes long. I tried dd ...
6
votes
5answers
24k views

Does Office 365 work properly on Ubuntu & Chrome OS?

And so maybe I can finally get rid of Windows in our office.
4
votes
4answers
12k views

Ubuntu: default access mode (permissions) for users home dir (/home/user)

What is a default access mode (e.g. 0755) for users home dirs in Ubuntu (e.g. what is output of ls -ld /home/*)? In other major linux distribs (Debian, RedHat, Gentoo, Arch)? How can I change this ...
15
votes
10answers
2k views

Software to switch between OS

My question might sound too weired and tricky, but is there any way (software/hardware) that I can use to switch between 2 OS without restarting my PC? Actually I have Windows 7 and Ubuntu installed ...
1
vote
2answers
766 views

How create a new thumbnailer in Ubuntu?

For a reason I don't know my ubuntu doesn't show thumbnails for pdf. So, how can I create a thumbnailer in gnome? More specific - how to create a folder in gconf - /desktop/gnome/thumbnailers? UPD ...
0
votes
3answers
1k views

PATH is not permanently stored in file

I'm a newbie to Ubuntu. I want to add some variables to my PATH - I am using the following steps: Open a terminal window. Type the following commands: export GOROOT=/home/linux/go/hg export ...