SELF and JFFS2????

SELF and JFFS2????

[Steven Scholz]

Hi there,

has anyone successfully used DENX SELF to create an root fs _and_ put it then on
a JFFS2 partion?

I would like to create a flash disk just as easy as you can create a ramdisk
with SELF.
But for now the problem is that mkfs.jffs2 does _not_ handle (busybox) hardlinks
correctly - well at least not the way I want.

Thanks,

Steven

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Re: SELF and JFFS2????

[Alex Zeffertt]

Maybe you could change the Makefile so that it creates symbolic links to /bin/busybox instead of
hardlinks.  The only drawback to this is that you end up using one inode per link, instead of one
inode for all the links.  As long as you've got the space to waste this won't be a problem.

Alex

Steven Scholz wrote:

> Hi there,
>
> has anyone successfully used DENX SELF to create an root fs _and_ put it then on
> a JFFS2 partion?
>
> I would like to create a flash disk just as easy as you can create a ramdisk
> with SELF.
> But for now the problem is that mkfs.jffs2 does _not_ handle (busybox) hardlinks
> correctly - well at least not the way I want.
>
> Thanks,
>
> Steven
>
>
>


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Re: SELF and JFFS2????

[Marius Groeger]

Steven,

> has anyone successfully used DENX SELF to create an root fs _and_ put it
> then on a JFFS2 partion?

FWIW, the Elinos DevKit contains an example project to do just that. It
allows to format the MTD device, and download and install another project
onto it.

Regards,
Marius

-----------------------------------------------------------------------------
Marius Groeger           SYSGO Real-Time Solutions GmbH     mgroeger@sysgo.de
Software Engineering     Embedded and Real-Time Software    www.sysgo.de
Voice: +49-6136-9948-0   Am Pfaffenstein 14                 www.osek.de
FAX:   +49-6136-9948-10  55270 Klein-Winternheim, Germany   www.elinos.com


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Re: SELF and JFFS2????

[Mészáros Lajos]

Marius Groeger wrote:

>> FWIW, the Elinos DevKit contains an example project ...

Is the Elinos DevKit as free as Linux kernel (or for example ELDK) ?

	Ludwig

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Re: SELF and JFFS2????

[Steven Scholz]

Marius Groeger wrote:
>
> On 26 Jun 2002 16:04:59 +0200, Mészáros Lajos <ludwigm@siemens.hu> wrote:
> >
> > Marius Groeger wrote:
> >
> > >> FWIW, the Elinos DevKit contains an example project ...
> >
> > Is the Elinos DevKit as free as Linux kernel (or for example ELDK) ?
>
> No, it's not. For some strange reason, grocery-stores here in Germany want
> money for their stuff, so we need money to pay them. Otherwise I'd love to
> send you a free copy. ;-) But seriously: of course, all the free software is
> provided with full source code, including the the Elinos Linux kernel. No
> licensing or royalty strings attached either.

Marius,

So you're going to delight us with a copy (just to present the idea) of the
build scripts...!? ;-)

Steven

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Re: SELF and JFFS2????

[Marius Groeger]

On Thu, 27 Jun 2002, Steven Scholz wrote:

> So you're going to delight us with a copy (just to present the idea) of the
> build scripts...!? ;-)

Build scripts what for - the CDK?

Regards,
Marius

-----------------------------------------------------------------------------
Marius Groeger           SYSGO Real-Time Solutions GmbH     mgroeger@sysgo.de
Software Engineering     Embedded and Real-Time Software    www.sysgo.de
Voice: +49-6136-9948-0   Am Pfaffenstein 14                 www.osek.de
FAX:   +49-6136-9948-10  55270 Klein-Winternheim, Germany   www.elinos.com


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Re: SELF and JFFS2????

[Steven Scholz]

Marius Groeger wrote:
>
> On Thu, 27 Jun 2002, Steven Scholz wrote:
>
> > So you're going to delight us with a copy (just to present the idea) of the
> > build scripts...!? ;-)
>
> Build scripts what for - the CDK?
>

No. The topic here was "creating a flash disk (JFFS2) instead of a initrd"...

I don't know about elinos. I wanted to use DENX ELDK to create a minimal root
fs. Do you know the ELDK?

Steven

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Re: SELF and JFFS2????

[Marius Groeger]

On Thu, 27 Jun 2002, Steven Scholz wrote:

> > > So you're going to delight us with a copy (just to present the idea) of the
> > > build scripts...!? ;-)
> >
> > Build scripts what for - the CDK?
> >
>
> No. The topic here was "creating a flash disk (JFFS2) instead of a initrd"...

Ah, well obviously the Build-Scripts are our work, and are not GPLed.
You do get their source code with Elinos, though. The idea (which you
asked for) is simple enough: Project A boots the target. It has
Networking and MTD built in. An installer tool (shipped with source
code) does the following:

- configure the network i/f
- format the MTD block dev(s).
- download (streaming, actually, to allow for unlimited size) and
  install the kernel image and root file system of Project B

> fs. Do you know the ELDK?

No (not yet, at least).

Regards,
Marius

-----------------------------------------------------------------------------
Marius Groeger           SYSGO Real-Time Solutions GmbH     mgroeger@sysgo.de
Software Engineering     Embedded and Real-Time Software    www.sysgo.de
Voice: +49-6136-9948-0   Am Pfaffenstein 14                 www.osek.de
FAX:   +49-6136-9948-10  55270 Klein-Winternheim, Germany   www.elinos.com


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Re: SELF and JFFS2????

[Wolfgang Denk]

Dear Steven,

in message <3D1ACE16.130836D0@imc-berlin.de> you wrote:
>
> No. The topic here was "creating a flash disk (JFFS2) instead of a initrd"...
>
> I don't know about elinos. I wanted to use DENX ELDK to create a minimal root
> fs. Do you know the ELDK?

Have a look at our  Simple  Embedded  Linux  Framework  (SELF  -  see
ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/  ). Wih a minor adaption
of the library list file it builts  fine  under  ELDK,  abd  contains
everything  you need to setup a small root filesystem on any device -
ramdisk as well as cramfs or JFFS2 or harddisk or DOC or ...


Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
I have been over into the future, and it works.
                - Lincoln Steffens in _Letters_ (1938) vol. 1, p. 463

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Re: SELF and JFFS2????

[Wolfgang Denk]

Hi Marius,

in message <Pine.LNX.4.40.0206271056180.1320-100000@mag.devdep.sysgo.de> you wrote:
>
> > fs. Do you know the ELDK?
>
> No (not yet, at least).

You can download it (for FREE - an yet e have no unpayed  bills  with
the  grocery  store  or  the  butcher  or  anybody  else  :-)  -  see
www.denx.de/ELDK/ for instructions. You can also have if on CDROM for
a nominal price of 99 EUR/$. Just let me know if we can help you :-)

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Testing can show the presense of bugs, but not their absence.
                                                   -- Edsger Dijkstra

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