Linux

For some time now, I have been working on wordgroupz. Since version 0.2, I have added some new features. The new features include dictionary support: online webster dictionary from dict.org and offline wordnet. For implementing the online dictionary support, I used the server interface of dict.org. For offline, I used the dictionary databases of the wordnet application and the python-nltk library. I also included wiktionary support this time. I used to find it tedious opening a notebook, browser to search wikipedia/wiktionary, copy-paste notes. That’s why I decided to get them all together under one hood – wordgroupz. I include a gtkNotebook : 1st page for showing, editing details of the selected word and the 2nd page for browsing through wiktionary and downloading pronunciations if available. I had to study urllib2, BeautifulStone, pywebkitgtk for the purpose. ...

Today we’ll be discussing a basic c code, the famous hello.c, which will be loaded as a kernel module and discuss some of the basic aspects related to it. #include <linux/init.h> #include <linux/module.h> MODULE_LICENSE (“GPL”); // included in module.h, tells about the license the code is having. static int __init hello_init (void) { printk (KERN_ALERT “Hello, worldn”); return 0; } static void __exit hello_exit (void) { printk (KERN_ALERT “Goodbyen”); } module_init (hello_init); // hello_init is the initialization function ...

I’ll be honest, I am neither a kernel hacker nor a device driver writer, but I want to be one. I am studying the Linux Device Drivers 3, the LDD 3. It is an effort from my end to document what I have understood from reading the LDD 3. There might be some errors or misinterpretation on my part and I will be glad if anyone corrects me. I will be trying to keep the things as correct as possible.

Today, 13th July, 2009, we ( me , i.e., Ratnadeep Debnath aka rtnpro, Kishan Goyal, Meejanur Rahaman, Harsh Verma, Chandana Boral) led by Indranil Das Gupta and Stephanie Das Gupta, went to West Bengal State University at Barasat, Kolkata. We started at around 10:30 AM from Ruby Hospital, and after a long journey ( changing two buses, then riding on a van, with a few drizzles on the way), we finally reached Barasat University at around 12:30 PM. ...

Hi all… I have a Dell XPS M1530 running on Fedora 10. It has got a 2 GHz Intel Centrino Duo processor, 2GB RAM, 256 MB Nvidia GeForce 8600M GT, quite a configuration for decent gaming. But till today I had to boot in Windows Vista to play games. So I have been trying to install and run Windows games in Fedora. There are a few tools for this purpose. The famous and proprietory and non-free Transgaming Cedega, Codeweavers Crossover Games and the all free PlayOnLinux. All these use wine which is a free software for running Windows applications in Linux. Though paid, Cedega and Crossover Games don’t support as many applications as PlayOnLinux. And when you are not sure that whether your games are going to run or not in Linux, wine and PlayOnLinux is the free and good option to stick to. ...

The Linux Users’ Group of Durgapur, i.e, DGPLUG conducted a Fedora Activity Day in Dr. B. C. Roy Engineering College, Durgapur. Though it was planned to be a 1 day FAD, it got extended to one more day, i.e, 15th May 2009. The people working for this FAD to happen are Harsh Verma, Kishan Goyal, me , i.e, Ratnadeep Debnath (rtnpro), Subhodip Biswas, Arindam Ghosh, Meejanur Rahaman, Dibyanshu Jaiswal. Also, we had Rangeen Basu Roy Chowdhury with us. And also Arpita, Amrita, Debashree were there to talk on Inkscape. There was also with us Sunny Sharma, another FOSS enthusiast. ...

The following is a nice tutorial on how to create a custom Linux Distribution . PCPlus has a tutorial on building your own Linux distribution with the customizations you want, derived from Fedora, using the graphical interface called Revisor. “We’re used to thinking of Linux distributions being set in stone. They’re either KDE or Gnome, use a certain kernel and bundle certain applications. But this doesn’t have to be the case. If you find yourself making the same adjustments each time you install a new distribution, it’s worth creating your own customised version. Revisor is a tool that lets you do just this, and in this tutorial, we’ll show you how.” ...

It’s been quite some time since I started poking with bluetooth coding, but didn’t understand it much. But it was quite some moment this afternoon. I was trying to study the rfcomm source code, and finally could able to find out the part of the code responsible for the “bind” option for rfcomm. Had a code already for scanning for nearby bluetooth devices. Edited some of theirs codes, added some lines, and came up with a code in c which scans for nearby bluetooth devices, displays them, asks the users to choose one of the devices to bind, and accordingly binds that device. But for that, the device must be already paired up with the host computer. Here’s the code: ...

A Fedora Activity Day is going to be conducted by the Linux Users’ Group of Durgapur, DGPLUG in Dr. B. C. Roy Engneering College, Durgapur on 14 May, 2009. The agenda of this FAD is to increase FOSS awareness among the students of BCREC and to introduce them to the wide spectrum of things that they can do in Linux in their day to day life. Fedora is not just an operating system, it is a community comprised of people coming from different walks of life, yet all believing in the foundations of Fedora ...

I am using Fedora 10 and I was running the kernel 2.6.27.15-170.2.24.fc10.i686 and I was happy until I did a ‘yum update’. My kernel got updated to kernel 2.6.27.19-170.2.35.fc10.i686, and then the system won’t boot the latest kernel. While booting it gave a mesage : Unable to access resume device (/dev/dm-1) mount : could not find filesystem ‘/dev/root’ I wondered what had happened? But, the old kernel 2.6.27.15-170.2.24.fc10.i686 seemed to work perfectly. I became fanatic to resolve this issue. I did some googling, and finally came to know that the issue was with /etc/fstab and my Fedora 10 being installed on LVM. Here is my previous fstab details : ...