Disable grub update

Support
4

There is the possibillity to use /etc/grub.d/40_custom

  1. Define a “Master-GRUB”, for example Debian.
  2. any other or second OS should be loaded via “chainloading”
    EXAMPLE:
menuentry 'Windows8 (UEFI)' {
insmod ntfs
set root=(hd0,gpt4)
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
boot
}

And please read:

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