Linux From ScratchThis Forum is for the discussion of LFS.
LFS is a project that provides you with the steps necessary to build your own custom Linux system.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
I the the 6.4 book thourgh, and it worked out very nicely. Now I need a 64 bit version. I am aware that the support for 64 bit systems is only about to come in a future release of LFS, but I would like to give it a shot somehow, since that is what I need. In order to do this, one needs a 64-bit compiler and kernel, which the x86_64 lsflivecd has, at least in my understanding. Having said that, I would like to ask a few questions:
1) For now, I am booting off the x86_64 lsflivecd, and I am following the CLFS way to build a 64-bit multilib system, although pure 64 would suffice, and somehow I find it unnatural that one would need to cross-compile, while building for the host, on the host itself. It just doesn't feel right. Or am I completelly wrong?
2) While on the x86_64 lsflivecd platform, by following the LSF 6.5 instructions one should, more or less, be able to build a 64 bit system. A few parameters would need to be modified only, right? For example, having --target=x86_64-unknown-linux-gnu among the compilation parameters, should on its own invoke 64-bit output generation. A few settings could also be borrowed from the CLFS book, in order to get 64-bit generation enabled, right? By the way, would that not be the default gcc setting on a 64-bit platform? I mean, automatically?
3) The lsflivecd (x86_64) site mentions an unofficial version of the, I suppose, 64-bit version book, that I hope would contain some pointers for me to start with, but neither could I find it in the mounted CD iso image nor on the webpages. Is such thing really available? A pointer to any version or draft would be highly appreciated.
Actually in the main book you do a sort of cross compile even on x86 to separate the host system from the one your trying to build. They call this step adjusting the tool-chain but your in essence building a cross compiler for the same arch. In the main book not the CLFS one there are parts that mention if you are building for x64 so I think the document that the live disk is refering to was merged with the main book at some time. Remember the live disk is rather dated and I suspect some of the documents in the x64 version are probably very old and there was a separate document that existed. In any case your assumption is correct. You could just modify some of the parameters in the main book and make it work alright. I just don't know if it is something that is currently supported.
In section 5.8 of the dev LFS book there is a caution statment that has this in it
Note that /tools/lib, or /tools/lib64 for 64-bit machines appears as the prefix of the dynamic linker.
So I suspect that they anticipate people trying this.
After looking around some on the book they defiantly do have modified instructions for people building pure 64 bit stuff.
PS: Also sorry for the late response to this.
Last edited by exvor; 12-14-2009 at 08:17 PM.
Reason: code tags were not correct