Baslinux mailing list

[sindi keesan <keesan AT sdf.lonestar.org>]

On Fri, 10 Feb 2006, David Moberg wrote:

> sindi keesan wrote:
> > With this info, I copied the source code .tar.gz file to the computer with
> > /uclibc, which I had booted with David's 2.4.31 (large) kernel, and
> > unpackaged it after chrooting to /uclibc.  I don't have any kernel headers
> > for 2.4.31, just 2.2.16.
>
> uclibc rootfs provides a minimal set of 2.4.x headers.

> It will not work on 2.2 until you build it statically.

Does static compiling incorporate something from the 2.4 headers which it 
needs?  And the dynamic version will work with 2.4.31 and the static 
version with any kernel?


Can I use a dynamic version with 2.4.31 kernels, for instance in a 
camera-linux, if I also add the uclibc lib libm ld-linux and libcrypts, 
and enlarge upon your 1-floppy USB linux by copying it to ext2, adding 
busybox and the uclibc libraries, and whatever else I want to use with it 
that is static, or dependent on uclibc, or on whatever libc you used for 
the floppy disk and if your 1-floppy system was all statically compiled, I 
would also need to add libc libm ld-linux for netpbm libc5 version.  If I 
wanted to use modules I would need a different kernel, or a loadlin setup 
with the right initrd.

I will try a 10MB ext2 to start with.  We decided not to start with BL3 
because we don't need X.

> > I presume a static version would be somewhat larger.  libc is 280K and
> > uclibc comes with libncurses, libpthread, libz, libutil, libgcc as well as
> > the above.
>
> To build statically, use make config or make menuconfig and select
> the static build option. You will also want to remove unused applets.

How do I know what is an unused applet?  Can I just start with the .config 
I have from make allbareconfig but answer the menu questions to make it 
static and eliminate programs I don't have a use for?  Would you suggest 
adding anything to Steven's programs besides maybe hdparm, ftpget and su 
(for general use, not for the camera linux)?

> > Will other programs work with the uclibc ncurses?
>
> I don't think that glibc programs will.

Did you use the uclibc ncurses for compiling lynx?

> > If I did copy over the libraries listed by ldd, how would I install
> > busybox to the non-uclibc part of BL2.1?  I suspect make install installs
> > it to uclibc.
>
> You can just copy the busybox binary over. make install puts busybox
> in /bin and makes symlinks.

Which /bin does it put it into, the one in /uclibc, if I am chrooted to 
uclibc?  Would I exit back to regular linux and then run make install?

> There is an option in make config which, when enabled, allows you
> to use 'busybox --install -s' to install symlinks. Steven disabled it,
> possibly because it is not needed in BL3.

Can I make and then install in a separate operation?
> > pipe_progress,
>
> I like this - it lets you watch the progress of a long gzip
> or dd operation, if you use pipes. Tossup.

Pipes meaning | ?


Are there any programs you suggest adding to Steven's list?
I don't even know what to do with half of them.



> > Are all the programs in Stephen's busybox 1.01 libc likely to be useful?
>
> No, I think he just answered Y to everything.

His 1.01 had a few less programs than my 1.10 'makebareconfig'.

> > Should I compile without ar, or just remove any link to it?
>
> I leave out ar and use the real thing. busybox ar cannot
> create archives.

So answer no to ar in the menu, but yes to sed.  I think we also wanted a 
larger 'tail' and 'less' - do you recall anything else where the busybox 
version was inadequate?

> > So far uclibc has worked correctly only for pilot-link and busybox.  It
> > seems designed to compile busybox with.
>
> Actually, busybox might be the most popular package to be
> compiled with uclibc. So the busybox developers optimize it
> heavily for compiling it with uclibc.

There are links at the busybox site to uclibc
> Steven, since you have posted the Linux kernel config for BL3,
> can you also post your config for busybox?

I was about to request it myself.

> David
> _______________________________________________

When I did a make allbareconfig with uclibc, it automatically answered all 
the questions with defaults.  When I used glibc, I had to keep hitting the 
enter key.  I would like to report this as a 'bug' but they never actually 
sent my email confirmation.

Sindi