我的windows 是裝在ssd，而ubuntu則是安裝在另一個hhd。可是在grub menu 內找不到windows 10的選項, sudo update-grub 也沒有看到有windows。
請問各位大大有什麼方法解決？　感謝

/etc/etc/default/grub的內容如下
# 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"

先貼出/etc/default/grub的內容。

/etc/default/grub似乎滿正常的。

雖然我覺得跟以下沒有關聯，但還是試試吧：

1.拔掉hhd排線，先進Windows，關閉windows的快速啟動。

2.裝回hhd排線，進BIOS先關閉安全啟動，然後把hhd的開機順位排在ssd前。

3.用 Ubuntu Live DVD（或 Live USB）開機，進試用模式，使用GParted為ubuntu的分割區設立「boot」旗標。

4.進ubuntu系統，試試

sudo dpkg-reconfigure grub-pc
sudo update-grub

然後重新開機。



順便一提，新內容另外發帖比較好，否則沒人知道你更新啊。