On Tue, Apr 9, 2013 at 12:49 PM, Alexandru Juncu <alexj@xxxxxxxxxx> wrote: > Hello! > > I am not a professional kernel developer but I do like learning how > things work..especially operating systems like linux. I know the basis > stuff about the linux kernel (enough to write a very simple kernel > module). But I wanted to learn how things like a simple scheduler or > a memory manager would work. > > Only reading the current kernel code is sometimes difficult because > all the layers of abstraction implemented in order to make Linux code > scale. So I was thinking taking a much much older version of the > kernel and starting to analyze it. Something like...v0.01. Seems like > I'm on a good track since sched.c in v0.01 has 250 lines while shed.h > in the current kernel has 1200 :P. > > But I couldn't get v0.01 to compile and I've search the Internet and > found that it needs a _lot_ of hacking to get it to work. So I moved > to try 1.0 which seems to have all of the basic features implemented > yet simple enough to understand. But I am still having trouble > compiling (having trouble with header files...). Although I could just > read the code and try to figure out what it does, I would like to be > able to modify it and compile and run it. > > In order to avoid useless trial and error, I wanted to ask other > people that maybe did this: What is the oldest kernel version that can > be compiled on a current system and then pun on a virtual machine like > qemu-kvm or vmware? > > On a side note, I did look into the "Linux from scratch" documentation > project, but that seems to tell you how to build a distribution, not a > kernel. I remember someone on kernel-newbies trying to do the same thing some while ago[1]. Although the thread does not provide the solution it highlights some of the obstacles you might face. I also found a small blog post[2] about this. But the article is from 2007, and you're going for something way older than 2.4 so probably a plethora of errors are coming your way. Hope this helps and good luck. [1] http://thread.gmane.org/gmane.linux.kernel.kernelnewbies/42878/focus=42884 [2] https://divyad.wordpress.com/2007/04/28/compiling-older-linux-kernels-preparations/ -- Silviu Popescu _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
