Re: updating the GRUB bootloader on EFI systems while upgrading

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Ranjan Maitra:
>> It is my understanding that my GRUB2 is installed on UEFI systems.

Marco Moock:
> In most cases it is, as it also provides an EFI bootloader that can
> boot Linux. Even if there are ways to boot the Linux kernel directly
> from the UEFI, most operating systems ship a boot loader like GRUB2.

The GRUB menu gives you a variety of options about *how* you will boot
Linux (which kernel, rescue modes, etc).  UEFI will (usually) just give
you an option for which drive to boot an OS from.  For me that's the
hard drive with Fedora installed, or the DVD-ROM drive with an install
disc in it.  For other people, that can be a Windows or Fedora choice.

It would be possible to put a series of Linux booting options into
UEFI, but it *might* be hard to work out a way that a Fedora installer
could manage that for all the different PC hardware there is out there.
UEFI is supposed to be a standard, but we all know how manufacturers
love to to vary things for themselves.
 
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