02_ windows and Linux dual boot

1. Grub2 Boot window.

---------------------Step 1---------------------------------

Vim/etc/grub.d/40_custom

----------------------Step 2-----------------------------------

Press I to enter edit mode and add the following:

Menuentry "Window8.1" { Insmod NTFS Set root= (HD0,MSDOS1) Chainloader +1 }

Press ESC to exit edit mode, enter: Wq Save to exit vim

---------------------Step 3--------------------------------------

Vim/etc/default/grub

Modify grub_default=2 =>2 as the default startup as the 3rd startup item

---------------------Step 4--------------------------------------

Update Grub.cfg

Grub2-mkconfig–o/boot/grub2/grub.cfg

--------------------Step 5--------------------------------------

Last reboot

Reboot

2.Window Boot Linux

If you want to boot with window without the window option, you can use the following method to enter window first

--------------------Step 1--------------------------------------

Start the computer, press C to enter grub when the boot option appears

--------------------Step 2--------------------------------------

Use the Ls–l command to see where the window is installed. The general situation is: MSDOS1

--------------------Step 3--------------------------------------

Set root= (HD0,MSDOS1) Chainloader +1 Boot

--------------------Step 4--------------------------------------

After entering window, open EASYBCD 2.2 software

1. Add a new entry →linux/bsd→ type select GRUB2 and click Add Entry
2. BCD deployment →MBR configuration options → re-create/restore boot file, point to execute action
3. Win+r input msconfig, select Boot tab, modify timeout: 10, also on when Startup tab countdown 10 seconds
4. Restarting the machine

02_ windows and Linux dual boot