Installing Debian from USB pen drive

["Santanu Chatterjee" <thisissantanu@gmail.com>]

Hello Everybody,

I was trying to install a very basic debian system from my 2GB
USB Pen Drive. For that, I did the following:

o Formatted my pen drive as a single 2GB FAT16 partition (/dev/sdb)
o Did a "# syslinux -sf /dev/sdb" to make it bootable
o Downloaded
   "http://cdimage.debian.org/debian-cd/4.0_r3/i386/iso-cd/debian-40r3-i386-netinst.iso";
   and placed a copy of this iso file on the pendrive as netinst.iso
   (renaming was not due to any particular reason)
o Opened the iso image in file-roller and copied the '/install.386'
   folder from it to the toplevel directory in my pendrive.
o Then copied all the files from the '/isolinux' directory in the iso iimage
   to the toplevel directory in my pendrive.
o Renamed isolinux.cfg in the pendrive to syslinux.cfg.

When I try to boot from the pendrive, it boots just fine, and the installer
starts OK. But then, it cannot find the cdrom. Thats OK, because there
is no cdrom in the drive. But I want it to install from the 'netinst.iso' image.
But I can't find a way to make it do the install from the iso image.

Can anyone tell me how to make the installer install from the iso image?
Thanks in advance for your help.

Regards,
Santanu