面板里的时间问题

我选系统的时候多了2行系统好像，和第一，二行的好像一样的，都是UBUNTU，不知道什么原因......是不是和这个文件有关？？
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu，Linux 2.6.32-31-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set c19ce319-c450-4724-82db-56b0bcc30802
linux /boot/vmlinuz-2.6.32-31-generic root=UUID=c19ce319-c450-4724-82db-56b0bcc30802 ro quiet splash
initrd /boot/initrd.img-2.6.32-31-generic
}
menuentry 'Ubuntu，Linux 2.6.32-31-generic (恢复模式)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set c19ce319-c450-4724-82db-56b0bcc30802
echo '载入 Linux ...'
linux /boot/vmlinuz-2.6.32-31-generic root=UUID=c19ce319-c450-4724-82db-56b0bcc30802 ro single
echo '载入引导虚拟磁盘 ...'
initrd /boot/initrd.img-2.6.32-31-generic
}
menuentry 'Ubuntu，Linux 2.6.32-21-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set c19ce319-c450-4724-82db-56b0bcc30802
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=c19ce319-c450-4724-82db-56b0bcc30802 ro quiet splash
initrd /boot/initrd.img-2.6.32-21-generic
}
menuentry 'Ubuntu，Linux 2.6.32-21-generic (恢复模式)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set c19ce319-c450-4724-82db-56b0bcc30802
echo '载入 Linux ...'
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=c19ce319-c450-4724-82db-56b0bcc30802 ro single
echo '载入引导虚拟磁盘 ...'
initrd /boot/initrd.img-2.6.32-21-generic
}

...沒錯...沒弄懂前不要亂改啊...

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