linux与windows双系统如何修改默认启动方式

打开/boot/grub/grub.conf文件，修改其中的default的值即可。

当default=0时默认启动CentOS (2.6.32-279.el6.x86_64)

当default=1时默认启动Win7

# 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 (hd0,6)

# kernel /boot/vmlinuz-version ro root=/dev/sdb7

# initrd /boot/initrd-[generic-]version.img

#boot=/dev/sdb

default=1

timeout=5

splashimage=(hd0,6)/boot/grub/splash.xpm.gz

hiddenmenu

title CentOS (2.6.32-279.el6.x86_64)

root (hd0,6)

kernel /boot/vmlinuz-2.6.32-279.el6.x86_64 ro root=UUID=eddf8d64-30d2-4e6a-b559-7a69ce18581b rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD quiet rhgb crashkernel=auto LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM

initrd /boot/initramfs-2.6.32-279.el6.x86_64.img

title Win7

rootnoverify (hd0,1)

chainloader +1