Hi,
--- On Fri, Feb 5, 2010 at 12:37 PM, Suresh Kumar Subramanian
<sureshkumar.s@xxxxxxxxxx> wrote:
| 2)) building the RootFS & disk controller for that disk in to the kernel.
\--
Can you re-phrase this statement? Disk controller is hardware. An
initrd is also a root filesystem image.
---
| I assume that, ramdisk image is the separate image for only
filesystem (initrd) and
| the second options is no initrd image file, kernel file(vmlinux)
includes the filesystem also.
| Is that correct?
\--
The term you are looking for is called a 'bootpImage' that has a disk
image and the kernel in a single image. Let us first be clear on some
terminology.
The initrd image usually contains some drivers that are not built-in
the kernel, and required to access hardware when the kernel boots.
But, one can also use the initrd image as a filesystem image (root
filesystem directories from busybox, for example) that can be booted
with the kernel to give the end user a shell prompt to work with --
like the use of a LiveCD/DVD running entirely on RAM that has both
kernel and initrd filesystem image.
SK
--
Shakthi Kannan
http://www.shakthimaan.com