[1224093] package ubuntu-docs 12.10.3 failed to install/upgrade: symbolic link ‘/usr/share/help/ar/ubuntu-help/net-wireless-find.page’ size has changed from 60 to 3
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ubuntu-docs | New | Undecided | - | |
Building Python from source on Ubuntu Linux
I recently had occasion to build Python 2.7.5 from its source code on Ubuntu Linux 12.04 LTS, for a project I’m working on.
I’ve built Unix and Linux packages from source many times before, including Oracle, Python, MySQL, wxPython, and others, but had not built a recent version of Python on a recent version of Linux. So I thought of doing it.
Ubuntu Web Server from scratch, free web hosting (LAMP, FTP, Webmin, PHPMyAdmin, SSH) [HD]
This video will demonstrate installing Ubuntu Server 12.04, and setting up a complete Web Server. Allowing one to host their own files! ubuntu.com www.webmin.com Commands used in this tutorial(seperated by one blank line): ifconfig wget prdownloads.sourceforge.net sudo dpkg –install webmin_1.580_all.deb
Video Rating: 4 / 5
liliputing.com Overview of Ubuntu Phone OS.
Video Rating: 4 / 5
[ubuntu] ffmpeg works from cmd prompt but is there a gui?
Ubuntu 12.04 (64-bit)
I installed ffmpeg and libavcodec-extra-53 according to this guide:
(I substituted 52 with 53 just because I received errors with 52 and found a reference to the later version.)
It worked – I managed to convert an flv video to mp3 audio, but only from the cmd line so I have this question:
Ubuntu Software Center lists ffmpeg as installed but I don’t know if there is a GUI I can use. How can I find out if there is one installed already or if not what to look for to install?
Thanks for any help.
[1009141] package ubuntu-docs 12.04.4 failed to install/upgrade: symbolic link ‘/usr/share/help/te/ubuntu-help/screen-shot-record.page’ size has changed from 61 to 0
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ubuntu-docs | New | Undecided | - | |
[ubuntu] Enable Unity 3D in 12.04 from a machine with dual screens run by two nvidia cards
My goal is to enable Unity 3D in 12.04 from a machine having two monitors respectively connected to two nvidia Video cards, and one of the monitors rotate clock wisely . However, I found it is really hard. so far what I can achieve is to have dual screen in Unity 2D with one rotated monitor by using the following script:
$ sudo gedit /etc/X11/xorg.conf
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "1"
EndSection
Section "ServerFlags"
# Not working with Xinerama anyways.
Option "RandR" "on"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "DELL 2208WFP"
HorizSync 30.0 – 83.0
VertRefresh 56.0 – 76.0
Option "DPMS"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor1"
VendorName "Unknown"
ModelName "DELL 2209WA"
HorizSync 30.0 – 83.0
VertRefresh 56.0 – 75.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Quadro FX 580"
BusID "PCI:3:0:0"
Option "NoLogo" "True"
Option "Rotate" "left"
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Quadro FX 580"
BusID "PCI:4:0:0"
Option "NoLogo" "True"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "metamodes" "nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "metamodes" "nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "Disable"
EndSection
the problem of this setting is:
1. only working in Unity 2D
$ echo $ DESKTOP_SESSION
ubuntu-2d
2. nothing comes up when execute
$ /usr/lib/nux/unity_support_test -p
Error: no composite extension
3. $ ps -ef | grep compiz | grep $ USER
chenming 2547 2380 0 20:15 pts/1 00:00:00 grep –color=auto compiz
3. compiz does not work, either.
I also saw my colleague using the following script to enable unity 3D in 12.04 from a machine with dual screen without rotating
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
Option "Xinerama" "0"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "DELL U2312HM"
HorizSync 30.0 – 83.0
VertRefresh 56.0 – 76.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Quadro 4000"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "metamodes" "DFP-0: nvidia-auto-select +0+0, DFP-1: nvidia-auto-select +1920+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
but clearly the difference between his machine and mine is that he has got one video card with two sockets, therefore only one device is defined, and dual screen can be achieved by TwinView rather than Xinerama. But in my case all of the devices, monitors has to define twice. and so far as I know it might not working by using TwinView. Also I didn’t know whether TwinView can rotate screen. Is there any way i can do to enable unity 3d in my machine with two video cards and screens? thanks a lot!
Ubuntu: helping drive business insight from Big Data
Today, Big Data isn’t just for big companies, and it isn’t just happening on the web. In fact more and more organisations in multiple sectors are recognising its enormous value in terms of gaining new competitive insight. In this white paper, we take a brief look at how organisations in a range of sectors are building Big Data into their planning and customer fulfilment strategies. We’ll also explore few reasons why Ubuntu has become a dominant operating system in the Big Data space.
Reasons to Switch to Ubuntu From Microsoft Windows
There are many valid reasons to switch from Microsoft Windows to Ubuntu Linux. Both the average computer user and corporations can benefit from the switch to Ubuntu. Do not worry if you have never heard of Ubuntu, I will briefly introduce you to the best free Linux distribution available.
The name of the Operating System is an African word which means, “Humanity to others,” this is a strong belief and sentiment held by its founder Mark Shuttleworth. Mark is also the first astronaut from an African nation to go into space, in a 2002 Russian mission to the Space Station. Mark has also worked tirelessly to improve scientific studies in African nations.
Ubuntu is a completely free Operating System, which has all of the bells and whistles available in Microsoft Windows. The fact that this Operating system is completely free should appeal to the average user, but more significantly to businesses, which spend much of their IT budgets on user licenses with Microsoft. Ubuntu comes in a few different versions available to meet the needs of users and companies in need of specific configurations.
1) Ubuntu Desktop is a basic user Operating System which is a very close match to the Microsoft Windows Operating System. It includes many types of free software, including graphics programs, and an office suite, which is 100% compatible with Microsoft Office. Email, Internet browser, games, and other various software is included, and makes Ubuntu just as productive as Windows, without the cost.
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2) Ubuntu Server addition, includes everything needed for an individual, or company to run a Server. One of the advantages to using a Linux server is its security. Although, no server can be 100% hack proof, Linux distributions have a better track record than most other Server platforms. Ubuntu Server can automatically install LAMP components at the time of the installation of the Operating System. LAMP stands for Linux, Apache, MYSQL, and PHP. These components when installed will ensure that you have all of the functionality of a complete Web Server from the time of installation. Ubuntu Server also allows updating and system administration control over all workstations connected to it. This gives a company a large financial benefit by eliminating the need to update each workstation independently.
3) Xubuntu, and Kubuntu are merely derivatives of the Ubuntu Operating System, but they utilize different desktop interfaces. Xubuntu utilizes the Xfce desktop environment with a heavy emphasis on GNOME applications. Kubuntu is a derivative that utilizes the KDE desktop and application. This particular setup is my favorite and it feels the most like Microsoft Windows to the user.
4) Finally there is Edubuntu another derivative of the Ubuntu Operating System which focuses mostly on education.
The Ubuntu Operating System is just as easy to install as the Microsoft Operating System. There is a host of free software which is completely compatible with Ubuntu, which can do everything that the costly Windows based programs can do. The only real drawback is for gamers. Most games developed by the gaming industry does not include support for Linux, but there is a way in which you can play some of your Windows. There is free software available which can emulate the Windows Operating System in a Linux environment. As more people switch over to Linux distributions, the gaming industry will most likely recognize the trend and start creating Linux versions of their popular titles.
I can not impress upon you enough that the Ubuntu Operating System is 100% free, and so is the software that is included with it. Just the Operating System and the basic software included is a savings of approximately 00.00 USD alone. In a company setting, multiply that by the number of workstations you have and you will soon come to understand the benefit of switching to Ubuntu.
Citations
http://www.ubuntu.com
http://linux.slashdot.org/article.pl?sid=04/10/25/1634232
Nick Poma served in the United States Army as a communications specialist. He holds a Bachelors of Science and Information Technology Degree.
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Speed up Reboot Your PC from Windows 7 to XP or Vista or Ubuntu
If you have a dual-boot system in your PC, maybe you will fell impatient for waiting your machine rebooting to choose the operating system you want to switch to. Today we will take a look at how to speed up reboot your PC from Windows 7 to XP or Vista or Ubuntu.
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iReboot, a small piece of software, can make us skip the above step all together and instantly reboot into the operating system we want right from Windows. Their description shown below:
“Instead of pressing restart, waiting for Windows to shut down, waiting for your BIOS to post, then selecting the operating system you want to boot into (within the bootloader time-limit!); you just select that entry from iReboot and let it do the rest!”
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Note: Don’t worry about iReboot will reconfigure your bootloader or any dual boot configuration you have. Actually reboot will only boot the selected operating system once and go back to your default settings.
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How to Use iReboot
Just download it (link below), run through the setup and select the default configuration. What’s nice is that iReboot will automatically figure out what operating systems you have installed and appear in the taskbar. Go over to the taskbar and right click on the iReboot icon, then select which operating system you want to reboot into.
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This method will add a check mark on the operating system you want to boot into.
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The system will automatically load your choice and skip the Windows Boot Manager on your next reboot. If you want to reboot automatically, just select “Reboot on Selection” in the iReboot menu.
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Also you can install iReboot into each Windows operating system to quickly access the others with a few simple clicks.
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Note: iReboot does not work in Linux so you will have to reboot manually.
Now you need to wait for the Windows Boot Manager to load and select your operating system.
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Note: iReboot works on Windows XP, Windows Vista, and Windows 7 as well as 64 bit versions of these operating systems. Unfortunately iReboot is only available for Windows but you can still use its functionality in Windows to quickly boot up your Linux machine. A simple reboot in Linux will take you back to Windows Boot Manager.
Article from Ubuntu News Articles
September 18, 2013
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Posted by admin