进入/boot/grub
修改grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/sda2
# initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat AS4 (2.6.9-67.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-67.ELsmp ro root=LABEL=/ rhgb quiet
initrd /initrd-2.6.9-67.ELsmp.img
title Red Hat AS4-up (2.6.9-67.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-67.EL ro root=LABEL=/ rhgb quiet
initrd /initrd-2.6.9-67.EL.img
为：
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/sda2
# initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat AS4 (2.6.9-67.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-67.ELsmp ro root=LABEL=/ rhgb quiet maxcpus=1
initrd /initrd-2.6.9-67.ELsmp.img
title Red Hat AS4-up (2.6.9-67.EL)
root (hd0,0)
&nbs