kernel boot up without using PPCBOOT from flash

[rekha gvv]

Thanks ,

I was able to solve the staic/shared library problem
by just stripping out the libraries and including them
in the ramdisk .

Now i need to go ahead with booting the kernel without
using PPCBOOT as soon as the power is on.
I dont know from where to start and which files i need
to modify ..
So please help me to go ahead with your suggestions
how to boot kernel from flash ?

Thankyou!

--- Wolfgang Denk <wd at denx.de> wrote:
>
> In message
>
<20030805131112.59750.qmail at web8007.mail.in.yahoo.com>
> you wrote:
> >
> > I am trying to execute certain fileutils
> application
> > like cp ,ls ..
> > These applications are compiled using the Glibc
> 2.2.3
> >
> > The problem is if i compile the applications
> > Statically
> > and try to execute the command cp,ls ..i get the
> > segmentation fault error.Please let me know the
> proper
> > compiler options  for static linking.
>
> Please explain which toolchain you are yusing, which
>  libraries,  and
> which versions of the tools listed above.
>
> > OBJS = cat.o chgrp.o chmod.o chown.o cmp.o cp.o
> dd.o
> > grep.o l.o ln.o ls.o \
> >         mkdir.o mkfifo.o mknod.o more.o mv.o rm.o
> > rmdir.o sync.o touch.o vi.o
>
> Where did you get these object files from?
>
> I have a suspicion that these are  in  fact  parets
> of  the  busybox
> toolbox.  If  this  is  correct,  then  why  don't
> you simply use the
> Makefile that comes with busybox?
>
> > Then i tried to eliminate the problem by using
> shared
> > library that is put the ld.so.1 file and libc.so.6
> > file in the /lib directory of the ramdisk .
> > The problem is the library files are too big in
> size.
> > libc is 5.1mb and ld.so.1 is .5mb
>
> You can strip the shared libraries for the target.
>
> > inorder to create a ramdisk image i have used the
> > initrd.sudo scrip file form the denx SELF package.
> > : ${IRD_SIZE:=4096k}
> >
> > dd if=/dev/zero of=$IMAGE bs=$IRD_SIZE count=1
> > 2>/dev/null
>
> Again, I have the suspicion  that  this  code  comes
>  from  our  SELF
> package.  The  scripts provided by SELF take care of
> all the problems
> you are running in.
>
> > 1.should i use statick linking
>
> No, this will most probably just increasy your
> memory footprint.
>
> > 2.shared library ..
>
> Yes.
>
> What I don't understand: there is a working set of
> tools and scripts.
> You rip it apart, omit essential parts, and then
> complain that it  is
> not working any more.
>
> What else did you expect?
>
> Best regards,
>
> Wolfgang Denk
>
> --
> Software Engineering:  Embedded and Realtime
> Systems,  Embedded Linux
> Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88
> Email: wd at denx.de
> It is surely a great calamity for  a  human  being
> to  have  no  ob-
> sessions.
>     - Robert Bly
>
>


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