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Is it possible to install Grub on multiple drives?
Do not run auto fix with Boot-Repair, as that installs grub everywhere. Or use Windows repair disk and run the Windows fixes (fixMBR) to restore Windows boot loader to MBR. If booted into Ubuntu you can directly install grub to MBR of external drive directly.
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).
How to install boot-grub on an external drive?
If booted into Ubuntu you can directly install grub to MBR of external drive directly. Or you can use Boot-Repair’s advanced options and choose install and drive to install boot loader. reinstall from working (not liveCD/DVD/USB) system – first find Ubuntu drive (example is drive sdb but use your drive not partitions):
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.
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 to throw GRUB2 to boot another disk?
This particular example is for slingshotting to another disk to boot the MBR which holds GRUB1. So it needs a bit of rewriting for your particular example. But throwing GRUB2 to boot the other disk seems to be the way to go. Your set root= (hd1,1) hopes to find a bootloader at the first partition of the second disk.
Can you use two EFI disks with GRUB2?
I bought two SSD disks and as usual I though that installing Windows on a completely separate disk would be the easiest solution, but I can’t find any tutorials for dual booting with grub2 (efi). All tutorials assume one EFI boot partition.