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Entries for the ‘Linux’ Category

HOWTO: Create and submit your first Linux kernel patch using GIT

After working with Linux (mostly as an advanced user) for years, I decided to post my first Linux kernel patch (although trivial but hey you need to start somewhere!) and I was thrilled when it first got accepted by the Subsystem maintainer and then ultimately it trickled into mainline kernel. What follows is a step-by-step […]

Info: Debian GNU/Linux 6.0 (Squeeze) Release Information

Looks like Debian 6.0 a.k.a Squeeze is to be released over this weekend as per the email sent by Alexander Reichle-Schmehl on the debian-news mailing list. Debian “Squeeze” will supersede Debian 5.0 “Lenny” which was released back on Feb. 14th 2009. I plan to write several posts regarding changes in Debian Squeeze and also documenting […]

TIP: Getting rid of permission error when compiling kernel from GIT source

Problem So recently I was in a situation where I had to use the git-bisect tool to find a bug that was causing my system to hang during early boot. One of the first step to do that is to get kernel git tree on your system where you will compile kernels. So I did […]

TIP: Compiling 2.6.33 and above kernels on Debian Lenny

So let’s say you want to install a Linux kernel 2.6.33 or newer on your Debian Lenny system. Problem The problem is that after you give your usual make-kpkg command to compile Linux kernel on Debian Lenny you will see the following error message after sometime into the compilation process: COLUMNS=150 dpkg -l ‘gcc*’ perl […]

HOWTO: Lookup Symbol Name and Address during Linux Kernel Debugging

Purpose: This is a short post in which we will see how to look-up a symbol name (function or a variable) from the address that it outputted in the kernel dmesg logs and vice versa. Note: Please note that this is not a HOWTO on how to debug Linux Kernel when it does a OOPS […]

HOWTO: Compiling a custom Linux kernel on Debian Linux System

Purpose: There are many ways on how to compile a Linux kernel on a Linux operating system. Here is a step-by-step guide on how to compile a custom Linux kernel, the “Debian way”, on  Debian Lenny. Step 1: Install Debian system I guess I don’t need to explain this. If you are at a stage […]

ACPI and APIC Issues – Part 2: Detecting faulty/buggy ACPI BIOS (firmware) code

Purpose: A while ago I posted a blog entry dealing with “Kernel Panic” error messages because of the faulty ACPI code in the BIOS. In that post I explained how we can get rid of the kernel panic error message but did not cover how to know if your ACPI BIOS code is really buggy […]

TIP: Getting rid of initramfs trying to update a non-exsiting initrd file

Problem: If you have been playing around with your Debian system for a long time i.e. installing, purging, un-installing and re-installing them again you might end up in a situation where anytime you run a program, for example splashy, which triggers the initramfs-tools you might end up with the following message: Processing triggers for initramfs-tools […]

Happy New Year 2010!

I know it’s been a long time (over a month) since I wrote a post on my blog due to my trip to India. Just wanted to wish all the readers and subscribers a very Happy New Year! Thank you all for your support!

Initramfs and Initrd Series: Part 2 – What is initrd and similarities with initramfs

Welcome to part 2 of Initramfs and Initrd series. In Part 1 of this series we saw what is initramfs and how to compress and de-compress it. In this part we will see what is an initrd and some of the similarities between initramfs and initrd. So as mentioned in first part, initramfs replaced the […]

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