通过修改 /boot/grub/menu.lst， 给kernel加参数，
我照着opensuse的参数改了Centos的，可是怎么每次重启都要手动选择一下分辨率？
opensuse就不用选
这个是CentOS的
1 # grub.conf generated by anaconda
2 #
3 # Note that you do not have to rerun grub after making changes to this file
4 # NOTICE: You do not have a /boot partition. This means that
5 # all kernel and initrd paths are relative to /, eg.
6 # root (hd0,1)
7 # kernel /boot/vmlinuz-version ro root=/dev/sda2
8 # initrd /boot/initrd-version.img
9 #boot=/dev/sda
10 default=1
11 timeout=5
12 splashimage=(hd0,1)/boot/grub/splash.xpm.gz
13 hiddenmenu
14 title CentOS (2.6.18-164.15.1.el5xen)
15 root (hd0,1)
16 kernel /boot/xen.gz-2.6.18-164.15.1.el5 splash=silent quiet showopts vga=0x31A
17 module /boot/vmlinuz-2.6.18-164.15.1.el5xen ro root=LABEL=/ rhgb quiet
18 module /boot/initrd-2.6.18-164.15.1.el5xen.img
19 title CentOS (2.6.18-164.el5)
20 root (hd0,1)
21 kernel /boot/vmlinuz-2.6.18-164.el5 ro root=LABEL=/ rhgb quiet
22 initrd /boot/initrd-2.6.18-164.el5.img
23 title openSUSE
24 rootnoverify (hd0,2)
25 chainloader +1
26 title Other
27 rootnoverify (hd0,0)
28 chainloader +1
