如果有兩個硬盤,我的機器是三個硬盤,在hd0安裝了Linux,hd1安裝windows server 2003,兩個系統相互不影想,但默認情況下grub卻不能啟動windows,經過幾番摸索,終于解決了,在grub加了兩行

title WINDOWS server 2003
      map (hd1) (hd0)
      map (hd0) (hd1)

這樣就解決了Linux與WIN2003雙硬盤啟動問題，無需改動bios的默認啟動硬盤。

下面我的grub.conf供參考

# 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 (hd0,0)
#          kernel /boot/vmlinuz-version ro root=/dev/sda1
#          initrd /boot/initrd-version.img
#boot=/dev/sda
default=0
timeout=1000
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
password --md5 $1$0t5znogn$/NkIpZK4EdR2hoYIxkhKc.
title Red Hat Enterprise Linux AS (2.6.9-55.ELsmp)
    root (hd0,0)
    kernel /boot/vmlinuz-2.6.9-55.ELsmp ro root=LABEL=/1 rhgb quiet
    initrd /boot/initrd-2.6.9-55.ELsmp.img
#title Red Hat Enterprise Linux AS-up (2.6.9-55.EL)
#    root (hd0,0)
#    kernel /boot/vmlinuz-2.6.9-55.EL ro root=LABEL=/1 rhgb quiet
#    initrd /boot/initrd-2.6.9-55.EL.img
title WINDOWS
      map (hd1) (hd0)
      map (hd0) (hd1)
    rootnoverify (hd1,0)
    chainloader +1