here is my grub.conf file.
title Red Hat Linux-up (2.4.20-8)
root (hd0,0)
kernel /vmlinuz-2.4.20-8 ro root=LABEL=/
initrd /initrd-2.4.20-8.img
title Red Hat Linux-up (compiled kernel)
root (hd0,0)
kernel /bzImage ro root=LABEL=/
initrd /initrd-2.4.20-8.img
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I also tried to specified root=/dev/hda2 ( my root / partition)
i m using the same initrd image for new kernel. Is it is required to make a new initrd image for a new kernel???