設定grub配置檔案中的螢幕解析度

# 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 -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

設定grub配置檔案中的螢幕解析度。將解析度調小，則字型就會變大。
      具體過程如下。
      在ubuntu的終端中輸入如下程式碼：
            $ sudo gedit /etc/default/grub
      然後在開啟的grub檔案中找到GRUB_GFXMODE，將前面的註釋去掉，並將其值設定為
            GRUB_GFXMODE=1024x768
      （注：也可以改為其他顯示卡支援的解析度，但不能改為16：9的解析度，否則沒有任何效果，不知為何。）
         然後命令列中輸入：
              $ sudo update-grub
        讓配置生效。重啟電腦。