| 因为以前没有太多的时候去理解grub-2,所以对Ubuntu的安装有抗拒,特别是default menu是什么?不错最近再次看,那么我们可以总结出来。 
 default=0,怎样改其他呢?
 
 /etc/default/grub which contains
 
 GRUB_DEFAULT=0
 
 where GRUB_DEFAULT defines which number of menuentry in /boot/grub/grub.cfg. The first occurrence is 0. The second one is 1.
 
 After you have editd /etc/default/grub for the GRUB_DEFAULT, then you execute "update-grub". The file /boot/grub/grub.cfg will be modified.
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