In message 1129821536.5419e1fcS3092131@student.rmit.edu.au you wrote:

As per manual when we use the mkfs.jffs2 tool to create the jffs2.img we have to specify rootfs_devices.tab, but i couldnt find it in eldk kit. Where is this file supposed to be.?

RTFM. http://www.denx.de/twiki/bin/view/DULG/RootFileSystemOnARamdisk explains this.

I created a jffs2.img without specifying the rootfs_devices.tab option,but the size of this file is about 3.55 MB. Is this jffs2 filesystem image supposed to be that big.

It depends on what you put in it, if you stripped the binaries and libraries, or not, etc. We do not know what you have been doing, so how could we comment?

When i use mkimage -l jffs2.img, it says Bad Magic Number.

Yes, of course. A JFFS2 file system image is created by mkfs.jffs2, not by the U-Boot mkimage tool, so why would you expect it to have valid U-Boot image headers?

So i cannot even transfer this file on the flash since U-boot would complain as Bad Magic Number.

Please go back to reading the documentation.

So how do i create the jffs2 filesystem image and load it in flash so that i can issue bootm <load address of kernel> <load address of jffs2 image>

You cannot. Bootm can only be used with (or without) ramdisk images,, but not with filesystems in a MTD partition. RTFM.

Best regards,

Wolfgang Denk