[U-Boot-Users] How to use tftp to book kernel image and mount remote root fs

Steven Woody
2008-05-13T01:52:16Z

Dear Denk,

Q1:

Both 5.9.5.1 ( http://www.denx.de/wiki/view/DULG/UBootCmdGroupDownload#Section_5.9.5.1.
) and 5.9.5.6 (
http://www.denx.de/wiki/view/DULG/UBootCmdGroupDownload#Section_5.9.5.6.
) talk about booting image via network, but there are only few lines
of description about these commands. I don't know which one I should
use, tftpboot or bootp? And, for each one, what's the requirement on
server side? I've done works described in 4.6, 4.7, 4.8 to setup the
server, but I don't sure which one ( tftp, dhcp, nfs ) will really be
used.

Q2:

in 9.6.3 ( Root File System on a cramfs File System ), the manual
taught how to make a root filesystem image (cramfs), but in the
installation ISO, i dont find necessary files rootfs.tar.gz and
devices.tar.gz mentioned in the instructions. Where should I get
them? On the other hand, after installed the eldk, I've already got a
root filesystem in /installation/path/arm, so i think it will be very
good building a root filesystem image from this directory, but in the
manual, I dont find instructios telling me how.

Thank you very much.

On Tue, May 13, 2008 at 2:29 AM, Wolfgang Denk <wd@denx.de> wrote:
> In message <ed4892840805120302l3e9a762bg23be7dbdb858c238@mail.gmail.com> you wrote:
>>
>> The manual is not so clear. I want to boot from a remote image and
>> mount remote root filesystem. It seems i've done the server side
>> setup respecting to the manual, but for u-boot usage ( target side )
>> to do this, i am not so clear. Would anyone please show me simple
>> steps? Thanks in advance.
>
> Maybe you can point out which parts of the manual are not clear
> enough, so that we can improve the documentation?
>
> 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
> "In matrimony, to hesitate is sometimes to be saved." - Butler