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Linux From Scratch This 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.


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Old 02-27-2007, 12:16 PM   #1
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newbie question

Hi all,

So I am in chapter 5.3.1 and I am doing my very first install of LFS. And I am on the very first step and I am confused, which can't be a good thing.

I have two questions:

1. The book says (chapter 5.3.1) "The Binutils doc. recommends building Binutils outside of the source directory in a dedicated build directory". It then instructs me to run "mkdir -v ../binutils-build". From which directory do I run this? Is it from / or is it from $LFS?

2. It then says "Now prepare Binutils for compilation". I guess that the book is assuming that I have unpacked this utility already and it's in the $LFS/sources directory right?

Thanks in advance.
Old 02-27-2007, 12:30 PM   #2
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You really should read EVERYTHING, especially if it's your first time.

In a big box in section 5.1 it says,
Before issuing the build instructions for a package, the package should be unpacked as user lfs, and a cd into the created directory should be performed. The build instructions assume that the bash shell is in use.
The answer to question 1 --> from $LFS/sources/binutils-2.16.1. The command as written will create (verbosely) $LFS/sources/binutils-build.

In addition to the previous quote, the answer to your second question is in section 3.1,
Downloaded packages and patches will need to be stored somewhere that is conveniently available throughout the entire build. A working directory is also required to unpack the sources and build them. $LFS/sources can be used both as the place to store the tarballs and patches and as a working directory.
Good luck...
Old 02-27-2007, 12:52 PM   #3
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Thanks Arow, I had read both quotes that you posted, but I had to double check. I am still trying to get used to the way this manual is written and I am a bit of a paranoid guy, so I double check everything. Thanks for your answer, I am off to have some LFS fun.
Old 02-27-2007, 01:32 PM   #4
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Can I ask why we are creating the binutils-build directory? If I am running "./configure && make && make install" from $LFS/sources/binutils-2.16.1, then what is the use of the binutils-build directory? Is that directory going to be used later on?

Sorry for my newbie question. Believe me, it's embarrassing to even ask it.
Old 02-27-2007, 02:19 PM   #5
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But you aren't running "./configure && make && make install" from the $LFS/sources/binutils-2.16.1 directory.

The build instructions give you two commands (after unpacking the binutils tarball and cd'ing into the binutils source tree):
mkdir ../binutils-build
cd ../binutils-build
Then later, you issue the configure command as (something like this):
../binutils-2.16.1/configure <arguments>
You are running the configure script, make, and make install from inside $LFS/sources/binutils-build (because you cd'ed into it earlier). All of this is done because the binutils developers suggest doing it this way. The instructions, followed to a 'T' will take care of you

This may sound mean, but that's not why I'm saying it, I promise! For your first-ever LFS build, don't think--just copy the commands exactly as provided. Don't tweak, don't modify, just plug-and-chug. Change things only when explicitly told to do so, and that usually happens toward the end of the project. You'll have a working system 99.9% of the time if you do that. Then, once you're comfortable with the process and know that it works, you can start customizing/modifying the steps. You'll have a much better idea of what you're doing, and if it breaks, you'll know one of your deviations from the book wasn't correct.

Last edited by Dark_Helmet; 02-27-2007 at 02:27 PM.
Old 02-27-2007, 02:22 PM   #6
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Oh, yes, yes. I see now. Thank you!!

I am such a
Old 03-01-2007, 05:21 PM   #7
Vitalie Ciubotaru
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shahgols wrote:
I am such a
No, you're already not if you asked such a question!
Technically speaking, you can run "./configure && make && make install" from $LFS/sources/binutils-2.16.1 and most probably it will work for you, but "The Binutils documentation recommends building Binutils outside of the source directory in a dedicated build directory". That's it!


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