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From: "Michael" <gonwg@hotmail.com>
To: <linux-kernel@vger.kernel.org>
Subject: set up new kernel with grub
Date: Wed, 4 Apr 2007 11:36:23 -0500
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Hi,

I compiled a new kernel: 2.6.20.3, and hope to test it without removing 
my old kernel.

Here is what I did by following 
http://searchenterpriselinux.techtarget.com/tip/0,289483,sid39_gci1204148,00.html :

I built the kernel in a local directory, say "mydir", with kernel 
"bzImage-2.6.20.3" and map file "System.map".

>su          (#become a root)

>cp mydir/bzImage-2.6.20.3 /boot/bzImage-2.6.20.3
>cp mydir/System.map /boot/System.map-2.6.20.3

>cd /boot
>ln -s /boot/bzImage-2.6.20.3 /boot/bzImage
>ln -s /boot/System.map-2.6.20.3 /boot/System.map

>vi grub/menu.lst

add a new entry as
**************************************
title Red Hat Linux (2.6.20.3)
    root (hd0, 0)
    kernel /boot/bzImage ro root=LABEL=/
    initrd /boot/initrd-2.6.20.3.img
**************************************

>create an initial ram disk image by
mkinitrd -k /boot/bzImage -i /boot/initrd-2.6.20.3

It reports wrong usage of "mkinitrd", and no initrd-2.6.20.3.img is 
created.

Any idea about what's wrong with the "mkinitrd" command ?


Thanks.

Mike