Archive for the ‘Linux’ Category
So Keys as well as Values in Hadoop seem a little tricky. Values need to implement the Writable interface Keys need to implement the ComparableWritable not just the Writable interface, otherwise a ClassCastException is thrown Each Key needs to specify the Comparable.compare(...) method carefully, as this is used by Hadoop to group Key-Value-Pairs for the Continue reading →
Here is a nice tutorial how to bind mouse buttons to keys. I used this on my V220 Logitech mouse. It works seamlessly. http://gaarai.com/2009/02/13/navigate-in-ubuntu-nautilus-using-the-mouse/ For more information about mappings look for the "-text" section in the "man xvkbd" manual pages
So the general headline is cloning, so basically backing up you system. Some commercial software that was mentioned when I researched was: Acronis True Image Ghost There are a lot more, see for example here: http://ghost.radified.com/ghost_alternatives.htm But as I am a fan of open source software or at least free software I preferred playing with Continue reading →
I wanted to create a system where I can plug in operating systems as I like. Meaning switching from a Win/Linux dual boot to Win/Win etc. I thought Grub or Grub2 would be a good way to do so. It turned out to be a little tricky for reasons I do not fully comprehend yet. Continue reading →
Single-/Multiple-Views: When using Descriptors which work on multiple views. Make sure to choose one (JCas cas = casIn.getView("yourView")) to work on. Otherwise you will miss AnnotatorIndexes and all, because UIMA doesn't choose a default view . Rather it creates a basic Cas and puts views as Cas's into that basic Cas. That's nothing new when Continue reading →
Here are some links to look through: https://help.ubuntu.com/community/MountingWindowsPartitions https://help.ubuntu.com/community/Fstab
sudo apt-get install nautilus-open-terminal nautilus -q Afterwards your desktop will be empty. But that should be gone when you restarted I hope
As linux noobs, it took its time yet: We finally got it working, after studying a whole lot of different tutorials and threads like: for general things: http://forum.ubuntuusers.de/topic/180332/ how to get the firmware: http://mapopa.blogspot.com/2008/07/firmware-for-xc2028-tuner-in-case-you.html and how to get the *.pl: http://ubuntuforums.org/showthread.php?p=5289047 So this is what you do: 1. Delete Ubuntu's saa7134 driver: sudo rm /lib/modules/2.6.24-18-generic/ubuntu/media/saa7134/* Continue reading →
I am a linux noob, so here I go: Sometimes you want to know the particulars about the kernel of your linux. This can be done using uname command. To check kernel version: uname -v To check kernel release: uname -r To check kernel name: uname -s (source)
I am a linux noob. So what? Here is what I found searching the net how to switch java versions on Ubuntu: It is so easy to install Java on Ubuntu now. On Ubuntu 7.04 (Feisty Fawn), follow these steps: 1) Make sure you have the right repositories on your sources.list file. Edit your sources.list Continue reading →