grub启动顺序更改

1.进入目录：[root@RHCE grub]# cd /boot/grub/
2.更改文件grub.conf
vim 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=1----------默认从0开始，1，2以此类推！如为0，就为选择第一个；1就为选择第二个。
timeout=5---------等待时间。
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux Server (2.6.18-128.el5xen)
        root (hd0,0)
        kernel /xen.gz-2.6.18-128.el5
        module /vmlinuz-2.6.18-128.el5xen ro root=LABEL=/ rhgb quiet crashkernel=128M@16M
        module /initrd-2.6.18-128.el5xen.img
title Red Hat Enterprise Linux Server (2.6.18-128.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-128.el5 ro root=LABEL=/ rhgb quiet crashkernel=128M@16M
        initrd /initrd-2.6.18-128.el5.img