How could I run programs from ramdisk?

Unless it is statically linked, /bin/ifconfig (usually /sbin/ifconfig) needs the C library (e.g. libc.so.6) and the dynamic loader (e.g. /lib/ld-linux.so.2). The dynamic loader also needs a couple of support files (see man ld.so).

also i beleive to run ifconfig u will need the proc filesystem just my 2 cents

Alan. May I suggest you to look at one of these tiny floppy based distributions? Most (if not all) of them are ramdisk based and can provide you with a template for what you need, assuming I understood your question. You may also get the ramdisk image from a boot disquete generated with syslinux, such as debian's or redhat's.

Regards.

Elder.

There are lots of examples and development tools, as using Floppy, network or Boot-Flash as a boot medium usually asks for having the root filer system in RAM.

I once successfully tried ELINOS as a "distribution maker", with all three (Floppy, Network and Boot-Flash). It comes with tools to create a file system and uses free booting code.

-Michael

Tauno.Thanks for your suggestion. But I compile the file "ifconfig" as a static file. it failed again,The Error is : eth0:unknown interface:no such device!

why the eth0 can't be f>> I want to make a ramdisk so that some programs can be run after the

You do not have the Ethernet card driver compiled in the kernel and a module driver is not loaded yet.

Would you please tell why you need to get the interface up before the root file system is available.

If you're attempting to run with a NFS-mounted root file system, get and read the following HOWTO's from the Linux Documentation Project: - Diskless-root-NFS-HOWTO, - Diskless-root-NFS-other-HOWTO

"Michael Schnell" ??????: snipped-for-privacy@viruswall.lumino.de...

Michael,could you tell me the name of development tools or show me some examples ? Thanks for your help. Alan

-Michael