On Sun, Feb 23, 2014 at 9:44 PM, subham soni <sonikernel1@xxxxxxxxx> wrote: > Should I directly dive into device drivers , I started referring Linux > Device Drivers 3 for kernel 2.x. But seriously couldn't understand a > thing. I dream is to have my own linux distro that surpasses all the > limitations of present distros. How about starting with first listing out "all the limitations of present distros" and how do you plan to solve them. Thanks - Manish > > On 2/24/14, Pranay Srivastava <pranjas@xxxxxxxxx> wrote: >> On Mon, Feb 24, 2014 at 6:43 AM, freeman <freeman.zhang1992@xxxxxxxxx> >> wrote: >>> Hi, >>> 2014-02-24 01:24, subham soni : >>> >>> Hello, >>> I am a newbie to kernel development. I would like to develop my >>> own >>> kernel from scratch. From where should I start from? I have a good >>> experience of the commands in Linux (Ubuntu,Fedora,Debian,Slackware). I >>> googled out and I came to know that I should start from Device Drivers. >>> Now >>> which device driver should I code? Or should I master Shell Scripting? >>> For >>> developing a kernel (my aim here would be to increase the battery life, >>> since most laptops have only 1.30 hrs or 2.00 hrs in Linux OS) and 3.00 >>> hrs >>> in Windows Environment. How should I start and from where? >> >> First learn about how compilation is done. How the program is actually >> executed. Learn about linker scripts, you'll need that black magic art >> that you'll definitely going to need. >> >> With this information you can at least understand the role BIOS play >> and how bootloader comes into play. >> >> Before your kernel coding starts i think you should at the very least >> be able to replicate a dummy bootloader, just to motivate yourself :P. >> >> Intel manuals (System programmer) would be your guide if you are doing >> this for PC. >> >> Last but not the least, test your code as a program first on PC. Make >> functions that are generic and could work with the arguments you pass >> to them. So with that said you can very easily create dynamic memory >> management code and test it as a module, then integrate it with >> kernel. You must always use parameters and don't assume anything. As >> your each module gets ready then integrate it with your kernel. You'll >> need to write some test programs as well so as to know that it >> actually works. >> Break it down into manageable pieces first before you start coding!. >> >> There would be a lot of code required before you can just print Hello >> World using your own printk or printf. >> >> Some resources you can google are osdev wiki, lots of info but please >> don't copy paste understand it first and then try to write by >> yourself. You'll learn alot by doing yourself. >> >>> >>> >>> _______________________________________________ >>> Kernelnewbies mailing list >>> Kernelnewbies@xxxxxxxxxxxxxxxxx >>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >>> >>> I read some books about how to DIY an OS . Of course it's simple and >>> crude, >>> but it's a good start, I think. >>> >>> Hidemi Kawai, Homemade Operating System Within 30 Days >>> Yuan Yu, Operating System From Scratch (I don't know if there is an >>> English >>> edition. The project from this book is on GitHub: >>> https://github.com/yyu/osfs00) >>> >>> " There are many ways to learn OS, but I believe the best way is to learn >>> by >>> practice. There are many open source OS code, but the code bases are >>> huge. >>> You will get lost in the source code labyrinth. >>> >>> There are good books, Operating System: Design and Implementation by A.S. >>> Tanenbaum and A.S. Woodhull for example, but they don't teach you where >>> to >>> begin either. >> This is by far the best book if you are actually serious about it. >> Definitely nobody will teach you how it's actually done but it'll >> guide you the best. You'll have to answers on your own. >> >>> >>> That's why you should come here. If Tanenbaum's book is a reference, my >>> project series is a tutorial. Prof. Tanenbaum tells you what. I'll tell >>> you >>> how." >>> >>> Above are two funny books involving me into coding and learning about OS. >>> However, if you're serious, please just ignore :-P >>> >>> All the best, >>> Freeman Zhang >>> >>> >>> >>> >>> _______________________________________________ >>> Kernelnewbies mailing list >>> Kernelnewbies@xxxxxxxxxxxxxxxxx >>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >>> >> >> >> ---P.K.S >> -- >> Pranay Srivastava >> > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -- Thanks - Manish _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
