[Buildroot] First rootfile system build using buildroot

Dinesh Guleria din.gulu.er at gmail.com
Tue Sep 1 01:09:34 UTC 2015


Thanks Tommy & Peter for your reply.

>> Either use the one generated by Buildroot ("Buildroot
toolchain") or use a pre-defined external toolchain ("Sourcery
CodeBench 2014.05" if you're using the RPi 1, or "Linaro" if you're
using the RPi 2).
I am using Rpi 1.

One more question from my side if i use " Sourcery
CodeBench 2014.05"  toolchain then buildroot will download it for me or i
have to download it manually ? Also if buildroot will download it then in
this case will it be a one time process or if i make a new build for my
rootfile system, then every time tool chain will be downloaded ?

What exactly the diffrence between using external tool chain like Sourcery
CodeBench 2014.05"  & building toolchain using crosstool-ng ?
http://www.bootc.net/archives/2012/05/26/how-to-build-a-cross-compiler-for-your-raspberry-pi/

>> Building the rootfilesystem into zImage resolves the rootfilesystem
loading/linking issue clearly.

Will uboot be able to understand that my rootfilesystem is inside my zimage
? Or i have to tell uboot explicitly ?

Katoch

Katoch,



Using the internal toolchain saves your time and effort on the external
toolchain installation. This is one of the Buildroot benefits.



Building the rootfilesystem into zImage resolves the rootfilesystem
loading/linking issue clearly. I do not see any reason to build and load
the rootfilesystem independently.



Tommy

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