双系统开机引导修复（Grub）

Linux_DebugNotes_02

Keypoints

• Repair in Grub interface
• Repair in Windows 10

Repair in Grub interface

• Repair grub

  grub> ls # you can see the partitions of your hard disk, such as (hd0) (hd0,msdos1) (hd0,msdos2) (hd0,msdos3) (hd0,msdos4)
  
  grub> ls (hd0,msdos1)/ # to find the partition where the grub files are located, such as (hd0,msdos1)/boot/grub. If you can't find it, try other partitions. If you can't find it, you can only repair it in Windows 10
  
  grub> set root=(hd0,msdos1) # set the partition where the grub files are located
  grub> set prefix=(hd0,msdos1)/boot/grub # set the path of grub files
  grub> insmod normal # load normal module
  grub> normal # enter normal mode
  

• Update grub

  sudo update-grub
  sudo grub-install /dev/sda
  

Repair in Windows 10

• To enter Windows 10 when starting the computer, press F12 to enter BIOS, select Windows Boot Manager to enter Windows 10
• Repair in Windows 10: Just delete the Ubuntu partition and then delete the Ubuntu folder in the EFI partition
• Other methods can be found on the Internet. I haven’t tried it. I don’t know if it works.

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