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What are the defaults for the Grub boot loader?
By default, GRUB_DEFAULT=0 uses the first entry as the default — change the number to 1 to use the second entry, 2 to use the third entry, or so on. You could also use GRUB_DEFAULT=saved and GRUB would automatically boot the last operating system you chose each time you boot. You can also specify a label in quotes.
Can you install Grub on a second hard drive?
If you didn’t already, manually setup a /boot partition on your original hard drive, the new installation on the second hard drive will contain the Grub that the boot loader will point to. You can allow the installation to take the whole drive with the automatic setup, if you want.
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.
Is there a way to boot both bootloaders at the same time?
When booting the computer you should have a option to hit ESC or some F-key for Boot Menu (not needing to go into Setup to change primary Boot Order). The BIOS should detect both bootloaders and give you the option on which to boot.
How to install GRUB 2 as an EFI boot loader?
Installing GRUB 2 GRUB 2 installation works just as described in EFI Boot Loader Installation. It can be installed in any of three ways, depending on the way in which the program was compiled: The GRUB 2 EFI binary can be installed along with its support modules and configuration files on the ESP.
Where do I find GRUB 2 on my computer?
When GRUB 2 is launched, you’ll see a menu of boot options, each named after an entry in the configuration file, as shown below. Select an option with the keyboard’s arrow keys and press the Enter key to launch the associated kernel or EFI boot loader. Maintaining GRUB 2.
Can You chainload GRUB 2 to another OS?
This means that if you have installed additional distributions, or non-Linux OSes, GRUB 2 will notautomatically adjust for them.) You need to chainload to another EFI-mode OS. You cannot mount the ESP at /boot—GRUB 2 includes filesystem drivers that enable it to load a kernel from every common Linux filesystem.