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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Linux Ubuntu MATE 14.04.1 Connection Issues

I recently dual-booted Ubuntu MATE (14.04.1) alongside regular Ubuntu (14.04.1). Regular Ubuntu was able to connect to the Internet. Ubuntu MATE is having issues. It seems that the Wi-Fi is not on, at ...
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2answers
2k views

error.log for apache2 contains lots of “caught SIGTERM” notices

When I restart my apache services it generates the following log in /var/log/apache2/error.log – and it increases the size of error.log. Is that default behaviour or am I missing some configuration? ...
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2answers
1k views

VirtualBox's virtual machine refuses to shutdown

I am running Windows 7 64-bit and recently installed VirtualBox on which I installed Ubuntu 11.10 64-bit guest OS. Everything runs smoothly until I found that I am not able to shutdown or reboot the ...
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1answer
2k views

Can't get Gopro studio to work in a windows 7 guest on a Ubuntu 14.04 host

I am running windows 7 guest on a ubuntu 14.04 host and am having problems trying to get the latest version of gopro studio to run. It seems to install fine, but everytime I try execute it, it ...
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0answers
16 views

Process ID files missing from remote Ubuntu Linux PC?

I am running Ubuntu 12.0.4 LTS on a PC in my office and on a virtual machine hosted on Azure. For some reason, the remote PC is not creating a PID file for each process. Everything else seems to ...
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4 views

Convert existing partitions to LVM and boot

I've an Ubuntu PC with one of ext4 and swap, both physical partitions. I have seen this answer which talks about converting the partitions in place. That's all well and good except I don't know what ...
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1answer
18 views

Unable to mount ubuntu directory to Linux(SLES 11 SP2)

Trying to mount ubuntu directory:/home/suvasish/Downloads/SLES11_SP2/ to SLES(11 SP2) server. Tried like below: NFS mount In Ubuntu side edited the /etc/exports like below.. ...
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0answers
38 views

Can't write bluray disks

I'm trying to write my first Bluray on Ubuntu 14.10 since I bought my ASUS SBW-06D2X-U external USB unit. What happens is that it get exessively slow (0.2-0.3x) and it crashes when it reaches around ...
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0answers
18 views

How to Diagnose Firefox DNS Issues

I'm currently running Firefox 34.0 and Chrome 39.0 on Ubuntu 14.04. Firefox is presenting with extremely slow DNS look-ups that aren't occurring in Chrome. In order to repro, I've shut down both ...
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1answer
11 views

SNORT -Unknown command line checksum option: ascii

snort -vde -l /var/log/snort -k ascii when i tried this command it gives me the error Unknown command line checksum option: ascii. I don't know why,coz i hve installed snort successfully, and also ...
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1answer
32 views

PC starts to be noisy some time after Ubuntu is installed

I used to have this problem: http://unix.stackexchange.com/questions/174161/when-i-boot-linux-it-asks-for-password-pretends-to-proceed-but-then-returns-t. Before it arose, my PC was beeing noisy for a ...
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1answer
24 views

How can I view unformatted drives in Ubuntu?

Sorry if this question is a bit novice but I am still learning about linux based systems. Thanks in advance! So I have a computer I am doing some experimenting with. So to start, I Set up a USB stick ...
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2answers
71 views

Lenovo laptop doesn't go beyond boot screen, can't enter BIOS menu

My Lenovo U510 was originally installed with Windows 8, and I wanted to dual boot Ubuntu alongside it, so I shrunk the existing Windows volumes (there's an SSD and a HDD) slightly in order to make ...
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1answer
21 views

Shared folder Virtualbox Ubuntu / Lubuntu

I can see a lot of posts on this but they either don't cover what I'm trying, the OS's that I'm using or (most likely) I'm not understanding them. I'm using Ubuntu 14, and I have VirtualBox running ...
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2answers
25 views

INTEL UNDI PXE MESSAGE AT BOOT TIME- LENOVO LAPTOP

I have Lenovo G580 laptop. I have installed two operating systems, namely, Windows 7 and Fedora 20. When my laptop boots it shows a message as "Intel UNDI PXE-2.0 (build 083) and blah blah...". I ...
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1answer
3k views

Ubuntu 13.10 has no Suspend or Hibernate Options

I have a Lenova Yoga 2 Pro, and I have Ubuntu 13.10 installed. I am having some issues setting the power functions. At the moment I can not suspend or hibernate the laptop. So from Gnome 3.10 I have ...
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1answer
2k views

Any sound which is played from Google Chrome is very low pitch

Any sound which is played from Google Chrome is very low pitch, doesn't matter which website or source i.e. video from youtube, music from flash games and etc. However if I open same content in other ...
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1answer
258 views

How do I add icons to the hicolor icon theme manually?

I am running Ubuntu 12.04 32-bit. My problem: I'm trying to manually add an icon to hicolor (default) icon theme. The only icon I have a 32x32 version of this icon. I've tried going about this by ...
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1answer
3k views

ubuntu 13,10 “Failed to download repository information”

I have ubuntu 13.10- 64 bit version on my machine.recently i tried to install postgres for ROR development but i couldn't complete the postgres installation and found that my update manager always ...
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0answers
16 views

Crashing after sleep/hibernate/suspend on multiple OS

Custom-built desktop, running windows 7 64-bit SP1, Intel i7-2700k CPU, 8 GB RAM Since I first started using this machine it sometimes crashes to a bluescreen and has always had trouble booting up. ...
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2answers
42 views

What is the file “-”, and why can only stat see it?

I'm using Ubuntu 12. When I type into my terminal stat -, I get the following output: File: ‘-’ Size: 0 Blocks: 0 IO Block: 1024 character special file Device: ch/12d ...
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1answer
32 views

Installed Ubuntu 14.10 on MacBook Pro (5,5) without rEFIt or rEFInd, hangs on purple screen

I recently inherited a mid 2009 13" MacBook Pro. I wanted to install Ubuntu 14.10 on the machine rather than OS X. I've previously had success with Ubuntu 13.10 on a 2006 MacBook by booting to live ...
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0answers
44 views

USB HDD disk not recognized in BIOS Boot order

I installed Ubuntu 14.10 along with Windows 8.1. Obviously I used a USB drive to install Ubuntu. I made all changes to UEFI so I could boot from USB. I could see the USB in the Boot Menu and was able ...
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2answers
15 views

The “/etc/init.d/networking restart” fails to update eth0/eth1 at my Ubuntu 14.04 LTS

At my Ubuntu 14.04.1 LTS, "/etc/init.d/networking restart" doesn't seem to update eth0/eth1 interfaces. Network Manager has been turned off in last reboot and "/etc/network/interfaces" has been ...
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2answers
2k views

How to fix Truecrypt MBR using Command Prompt or Linux live USB?

I was playing with TrueCrypt and decided to make a fresh installation of Windows 7 from USB stick. Unfortunately Windows 7 installer: "setup was unable to create a new system partition" My entire ...
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5answers
3k views

How do I reset the factory capacity of harddisks on win7 or ubuntu

I have a 3TB Hitachi HD () which progressively 'lost' displayed capacity to currently just above 740 GB. Explorer, Installation-DVD and harddisk manager (win7) all agree on this size @ 1.5 billion ...
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0answers
14 views

Reorder the pages from scan two-sided of pages, by using one-sided scan only? [duplicate]

I am using Xerox WorkCentre 7830 to scan the pages of my small notebook. I have used a paper cutter to remove the bindings of the notebook, and feed the pages into the document feeder of Xerox ...
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1answer
34 views

Strange issue with Google

I have installed Ubuntu on my laptop. Now I have dual boot Windows 8.1 and Ubuntu 14.10 both of them are x64 bits. I have two problems: The first one is the I can't connect to their server from the ...
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0answers
1 views

How do I apply parts of a gconfd backup?

I have just re-installed a laptop and I want to have the same Compiz settings that was on the laptop before. According to ...
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0answers
30 views

Uninstall Ubuntu [duplicate]

I am trying to uninstall ubuntu and install windows 7. For this I change DVD drive as a first boot device but windows 7 DVD is not booting I tried to put windows 7 in USB but even that is not detected ...
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1answer
68 views

Unable to open github.com Error code: DNS_PROBE_FINISHED_NXDOMAIN

I am using Ubuntu 14.04 64 bit with a wired connection. For the last 7 days, I have been unable to open Github. It instead has an error. Is there anything wrong with my connection / hardware / ...
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2answers
4k views

Unable to execute binary file. Exec format error

I recently heard about Breach, a Node.js based browser. I was following the instructions on http://codeforgeek.com/2014/08/download-install-breach-browser-ubuntu-14-04/ to install it but got the ...
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1answer
29 views

Checking firefox version using cmd and gives error

On checking the version of firefox using firefox -v, I get the following error. (process:12746): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed Mozilla Firefox 31.0 I ...
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1answer
33 views

How do I burn the Ubuntu ISO to a CD-RW in Windows 7?

What should I choose if I want to burn a Ubuntu ISO to the CD so that I can boot Ubuntu from CD on start-up? Should I choose treat the CD like a USB which is save, edit, delete files at any time or ...
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0answers
29 views

How to reduce file size in swf files?

I'm trying to reduce the file size in a swf file that is 17 MB in Ubuntu 14.10. I tried using swftools and avconv. When I did swfcombine -dz file.swf -o file_new.swf swftools only managed to ...
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0answers
10 views

How do I go about geting synergy 100% operational with error in build process

During the install process I get the following snippet of an error When I get to the part about cryptopp: Scanning dependencies of target cryptopp [ 19%] Building CXX object ...
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2answers
47 views

Running Ubuntu in VirtualBox under Windows 8.1 doesn't use CPU on 100%

I am running Ubuntu 14.10 64 bit under Windows 8.1 64 bit using VirtualBox 4.3.10. I have an Intel Core i5-2410M CPU, with 2 physical cores and enabled HyperThreading and virtualization. I have set ...
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9answers
41k views

Mouse clicks suddenly stopped working in Ubuntu

This is a weird one. For some reason, last night my mouse partially stopped working. Movement is fine, but the mouse buttons don't work. Mainly it's the left button, but occasionally the right click ...
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1answer
19 views

What minimum'allows' should be used in iptables rules?

I have a Ubuntu 14.04 server which has two Ethernet ports: eth0 directly connects with a custom camera and eth1 connects via LAN cable to a wireless router. I had been developing a web application ...
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0answers
10 views

Kinivo WID340 Ubuntu Driver install

I'm running Ubuntu 14.04 and recently purchased this wifi extender. I'm attempting to install the drivers as instructed in the manual: http://downloads.kinivo.com/product/manual/WID340_English.pdf . I ...
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0answers
52 views

Cannot SSH to my Server, The connection Hangs

Hello i have setup a home server which I am trying to access remotly. I did this a while back and untill recently I moved homes and ISP. I have port forwarded with my new ISP to be able to access the ...
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0answers
37 views

Ubuntu fails to install cuda toolkit

I want to install cuda toolkit on ubuntu 14.04, so I downloaded cuda-repo.deb from nVidia site and then ran: sudo dpkg -i cuda-repo-ubuntu1404_6.5-14_amd64.deb But it fails. There are no error ...
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0answers
17 views

No GUI and Long on screen in ubuntu 14.04 after removing GTK

I removed the gtk+2 and gtk+3 by the command "apt-get remove" command. But after that, I could not log on to my system, there is no Log in screen and other GUI icons.But the PC is working, I could ...
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1answer
26 views

OmniCppComplete vim plugin and SSD on Ubuntu

I want to develop some GTK+ stuff in C and I was in need of using some plugin for completions. I have personal reasons why I don't want to use YouCompleteMe plugin. I configured OmniCppComplete ...
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5answers
59k views

How to Extend primary partition(/dev/sda1) in linux?

Im having a problem, my primary partition is running out of space. Due to this, I can't access linux machine remotely (through vncserver). I have another drive (/dev/sdb) having much more free space. ...
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1answer
16 views

Specify manually installed dependency with Synaptic install

Libevent2.0.5 is the latest version available in the repository but I want to use libevent2.0.21 instead as I'm troubleshooting an error with Transmission. I compiled libevent2.0.21-stable using ...
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2answers
414 views

How to get Windows 8 boot menu to choose OS in a dual boot of Windows 8 and Ubuntu?

I recently dual booted my system - Windows 8 and Ubuntu, installing the latter first. Now, when I boot into my system, I get the Ubuntu grub menu instead of the Windows 8 boot menu that has only two ...
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0answers
18 views

how to uninstall ubuntu 14.04 and reinstalling 12.04.03 lts

I installed ubuntu 14.04 but wanted to uninstall it because battery drains very quickly. So I decided to reinstall the old 12.04.03 lts. I formatted the the drive on which ubuntu was installed. ...
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6answers
8k views

Difftool for Ubuntu like OS X's Opendiff

What is the best difftool for Git repos like OS X's Opendiff?
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1answer
41 views

Apache2 server won't restart after replacing server.crt with server.crt from ca

I'm trying to enable ssl (tls?) I ran into these errors and I have these questions. Why did apache not restart? And how do I get it to restart? Replacing restart with start does not work. Could ...