安装了ubuntu不能正常关机，找到一个类似情况的解决方案，就是下面一大段英文，对linux一窍不通，哪位强人来帮忙稍微翻译一下，该怎么办啊？

First try the acpi=force kernel option parameter solve your issue

Reboot your pc, after bios messages, when you see the Grub row press ESC key
Select the kernel row and press edit select
Select the "kernel /boot/......" row and press "e" to edit this row
add the acpi=force parameter at the end of the row
then press "enter" and then press "b" to boot

If this work

To make this "acpi=force" kernel boot parameter permanent

Please open a Terminal from the menu Applications->Accessories->Terminal and type:

sudo gedit /boot/grub/menu.lst

give your user password when requested, you don't see nothing when you type it, then press enter.

Search your default kernel option
# defoptions=nosplash locale=it_IT

and add at the end of the row the
acpi=force
parameter

save and exit

Then to update Grub type
sudo update-grub