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Is it possible to boot grub on multiple drives?
If system really UEFI which all newer system are and Windows is installed in UEFI boot mode, these instructions will not apply. When installing and if BIOS, you should use Something Else install option and select which drive’s MBR you install grub into.
Can you install one Grub on each MBR?
Auto-Repair will install one grub to every MBR. Better to keep each operating system and its boot loader on separate drives, so each drive could be booted without the other. Use Advanced options, choose operating system, and choose which drive to install boot loader into.
Can you install Grub on a spinning hard drive?
If you install the grub bootloader to the spinning hard drive then you would have to go into your bios setup and make your spinning hard drive first in the boot priority. Your grub installation on the spinning hard drive will automatically detect both your windows install and your linux install and give you the option of booting into either one.
How is GRUB installed on the master boot record?
The installation of grub has 2 parts: the resource files, and the boot loader. [Concerning non UEFI boot] Each OS installation has its own resource files [located in the same partition than the OS you have installed), but the boot loader is always installed on the master boot record.
What are the two parts of boot grub?
Best to also have Windows repair disk, to fix Windows when needed as Boot-Repair is primarily for Linux and can only do a few minor fixes for Windows. The installation of grub has 2 parts: the resource files, and the boot loader.
Can you have windows grub and Linux Grub?
As you have 2 disks, you can have 2 functional grub, the Windows grub in the MBR of your Windows disk, and the Linux grub in the MBR of your removable disk. You can use a live CD/USB (everyone should have one to fix bad things that happens to boot, more often than we think).