[ELDK] Root File System for my Board

Wolfgang Denk wd at denx.de
Wed Apr 14 11:10:54 CEST 2010

Dear yel_yahc,

In message <90aefc13f015a0fae0295cf38f805f87 at etud.insa-toulouse.fr> you wrote:
> I have the root file system of ELDK in /opt/eldk/ppc_6xx it weights 2,2Go
> and I want to put it in my board on initramfs and I want a RFS not superior
> to 64Mo, should I build my RFS or from ELDK's RFS I can have my RFS with
> 64Mo, any idea how to do that?

You probably want to start by reading the documentation, for example
sections "9.5. Root File System: Design and Building"[1] and "9.6.
Root File System Selection" [2] in the DULG.

For a qick start you can use the pre-built SELF ramdisk image in the
/opt/eldk/ppc_6xx/images/ directory.

For building a customized root file system you can either follow the
instructins for manual building in the above mentioned sections of the
documentation, or try the RFSB, our root file system builder [3].

Note: I have no ide what you are trying to do, but please note that a
ramdisk (or initramfs) based root file system is almost always the
worst of all possible choices, especially in terms of memory footprint
and boot times.  I strongly recommend to check other options as well.

[1] http://www.denx.de/wiki/view/DULG/RootFileSystemDesignAndBuilding
[2] http://www.denx.de/wiki/view/DULG/RootFileSystemSelection
[3] http://git.denx.de/?p=rfsb.git

Best regards,

Wolfgang Denk

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Anything that is worth doing at all is worth doing well.
                                       -- Philip Earl of Chesterfield

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