For starters, if you can see the GRUB prompt you know that the MBR is intact, and that GRUB has been properly loaded into memory. Before trying to actually do anything with GRUB, you should examine what GRUB can actually see in your system.
Manually booting your operating system from GRUB is actually pretty easy once you know what you need to do. So how do we fix it when things go wrong? The kernel will then load both the default configuration file and any other modules needed. Once loaded, GRUB will pass parameters (if any) and transfer control to the kernel. GRUB will check it's configs for the location of the requested kernel and attempt to load (or strap) that image into memory. There are two versions of GRUB in common use, though GRUB version 2 is now used by most distributions (and will be the focus here). The GRand Unified Bootloader (GRUB) was initially developed as a boot loader for the GNU/Hurd project. The boot loader is then responsible for preping and starting the Operating System. In the case here, the boot loader is GRUB.
GRUB2 THEMES ZORIN CODE
In the case of a hard disk (which is most common), it will load the code found in the Master Boot Record (MBR), which will generally locate and load the operating system's "Boot Loader" into memory.
GRUB2 THEMES ZORIN HOW TO
When the machine finishes it's Power-On Self-Test (POST), it will look for instructions on how to actually load your Operating System. In computing, booting (also known as a boot-up) is the initial set of operations that a computer system performs after being turned on. There are a number of reasons you could be getting this prompt, but it usually all boils down to the fact that GRUB is unable to see any information on how it should load your kernel and operating system.
Minimal BASH-like line editing is supported.
It's never a comforting scenario when you go to boot up your system and you get the following screen: GNU GRUB version 1.99
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