Alex Sleat
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Posts Tagged ‘howto’
Howto: Reinstall Grub using Ubuntu Live CD
11 Mar 2010I recently installed Fedora 12 on my desktop alongside Ubuntu Karmic and Windows 7, however doing so I overwrite my grub which meant my Ubuntu system was hidden. To fix this is pretty simple..
Insert your Ubuntu 9.10 Live CD
Click “Try Ubuntu without any changes to your computer”
Once loaded click Applications > Accessories > Terminal
sudo fdisk [...]
Yet Another OpenCV/Karmic error – symbol lookup error: /usr/local/lib/libhighgui.so.4
In: Ubuntu
4 Feb 2010symbol lookup error: /usr/local/lib/libhighgui.so.4: undefined symbol: av_free_packet
To fix it simply make sure /usr/local/lib is in your library path by using the following command:
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
- No Comments
- Tags: av_free_packet, error, fix, howto, karmic, libhighgui.so.4, lookup, opencv, symbol, Ubuntu, undefined symbol
Howto fix: “error while loading shared libraries”
In: Linux
2 Feb 2010While installing opencv on an older version of debian for work I kept getting an error while loading shared libraries which turned out to be a pretty easy fix, just finding the libraries and adding them to the dynamic linker.
The libraries I was having trouble with below:
./blobtrack: error while loading shared libraries: libcxcore.so.1: cannot open [...]
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- Tags: debian, dynamic, error, howto, lib, libavdevice.so.52, libraries, libxccore.so.1, linker, Linux, shared, Ubuntu
You will need to have cmake and build-essentials installed:
sudo apt-get install cmake build-essential
How To Install Player:
Player provides a network interface to a variety of robot and sensor hardware. Player’s client/server model allows robot control programs to be written in any programming language and to run on any computer with a network connection to the robot. [...]
Yesterday I was having trouble installing OpenCV on Ubuntu Karmic, but now it’s compiled and loading programs with GUI’s .
Heres how I got it installed:
First install some needed packages
sudo apt-get install build-essential libgtk2.0-dev
Now you need to grab FFmpeg for the install to work
svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk ffmpeg
The svn didn’t work for [...]
- (9) Comments
- Tags: 9.10, compile, computer vision, ffmpg, gtk, howto, install, karmic, Linux, machine vision, opencv, Ubuntu, vision
UPDATE
I now have it working and wrote a guide of how I got it to work -
http://alexsleat.com/2009/12/02/howto-install-opencv-in-ubuntu-karmic-9-10/
END UPDATE
I found a great guide on getting OpenCV to install on Ubuntu Karmic (9.10) – http://ivkin.net/2009/11/installing-opencv-2-0-on-ubuntu-9-10-karmic-koala/
Most the comments show the guide works however I have a couple of problems:
Firstly when reloading the libraries to make opencv show up
ldconfig [...]
- (4) Comments
- Tags: 9.10, computer vision, howto, install, karmic, Linux, machine vision, opencv, Ubuntu, vision
Enable Ctrl + Alt + Backspace to Restart X in Ubuntu Karmic
In: Ubuntu
20 Nov 2009To enable Ctrl + Alt + Backspace to restart the X server under Ubuntu Karmic Koala (9.10) do the following:
System > Preferences > Keyboard
Then under “Layouts” click on the “Layout Options…” button to bring up a new window
About halfway down this list is the “Key sequence to kill the X server” clicking on that reveals [...]
Great guide by wootah from the ubuntuforums.org of how to get the wireless receiver for PC working under linux, using the Userspace Xbox/Xbox360 USB Gamepad Driver for Linux from grumbel. It works pretty much perfectly, I use it as a remote to control my laptop when it is displayed on my TV.
Supported Controllers
Original Xbox controllers [...]
Gareths Guide to Home PCB Etching
In: Hardware| Miscellaneous
2 Nov 2009My house-mate has published his guide to home PCB etching and it can be found at the following link, it works great and pretty cheap too once you have everything setup – http://gareth-griffiths.co.uk/?page_id=31
About
Hi, my name is Alex Sleat. On this site I will share my thoughts, ideas, things I find online and projects I'm doing at university or at home. I am currently studying Robotics BSc at the University of the West of England (UWE). I'm intrested in all things tech, web, gadgets, gaming, films and baseball.
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