小编Puy*_*uya的帖子

更新 grub 返回：

/usr/sbin/grub-mkconfig: 12: /etc/default/grub: GRUB_CMDLINE_LI­NUX=acpi_osi=Linux acpi_backlight=vendor: not found

而且apt-get upgrade命令没有执行成功，它以这个消息结束：

/var/lib/dpkg/info/grub-pc.config: 12: /etc/default/grub: GRUB_CMDLINE_LI­NUX=acpi_osi=Linux acpi_backlight=vendor: not found
dpkg: error processing package grub-pc (--configure):
 subprocess installed post-installation script returned error exit status 127
Errors were encountered while processing:
 grub-pc
E: Sub-process /usr/bin/dpkg returned an error code (1)

grub 文件：/etc/default/grub

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub …