Такой вопрос: после компиляции ядра 2.6.2 при загрузке выдаёт следующее: 
VFS: Cannot open root device "hda3" or unknown-block(0,0) 
Please append a correct "root=" boot option 
Kernel panic: VFS: Unable to mount root fs on unknown-block(0,0) 
 
В чём дело? 
 
module-init-tools и mkinitrd обновлял 
 
grub.conf такой: 
 
# grub.conf generated by anaconda 
# 
# Note that you do not have to rerun grub after making changes to this file 
# NOTICE:  You do not have a /boot partition.  This means that 
#          all kernel and initrd paths are relative to /, eg. 
#          root (hd0,2) 
#          kernel /boot/vmlinuz-version ro root=/dev/hda3 
#          initrd /boot/initrd-version.img 
#boot=/dev/hda3 
default=1 
timeout=10 
#splashimage=(hd0,2)/boot/grub/splash.xpm.gz 
title Red Hat Linux (2.6.2) 
        root (hd0,2) 
        kernel /boot/vmlinuz-2.6.2 ro root=/dev/hda3 
        initrd /boot/initrd-2.6.2.img 
title Red Hat Linux (2.4.20-8) 
        root (hd0,2) 
        kernel /boot/vmlinuz-2.4.20-8 ro root=LABEL=/ 
        initrd /boot/initrd-2.4.20-8.img 
#title DOS 
#       rootnoverify (hd0,0) 
#       chainloader +1