Robbie Harwood f9344de20a Stop using %{name} for things in the spec file
There's no point to this (the packaging isn't generic, confusion between
grub and grub2 in places, it's not fewer characters to type, have to
think about escaping in macros, ...) and it makes searching for things
needlessly difficult.

This finishes the revert of 967c5629ed9fdb4e8572daa78f3bb5ac5e675e77
("Don't harcode grub2 in the spec file") that was begun in
af038a0bdc38f46db45fc5aeaca0a6942fc22440 ("Revert "Don't harcode grub2
in the spec file"").

Signed-off-by: Robbie Harwood <rharwood@redhat.com>
2022-04-18 17:14:40 -04:00
2022-03-31 21:21:43 +00:00
2022-02-24 13:35:00 -05:00

Using GNU GRUB 2 in Fedora
==========================

GRUB 2 provides various feature enhancements over the previous GRUB version
(referred to as "GRUB", or "GRUB Legacy") which has been unmaintained upstream
for years. GRUB has thus been deprecated in Fedora and replaced by GRUB 2 for
BIOS systems. (EFI systems still uses GRUB Legacy from the new grub-efi package.)

Utilities
---------

The GRUB 2 utilities are prefixed with 'grub2':

grub2-bin2h
grub2-editenv
grub2-fstest
grub2-install
grub2-kbdcomp
grub2-menulst2cfg
grub2-mkconfig
grub2-mkdevicemap
grub2-mkfont
grub2-mkimage
grub2-mklayout
grub2-mknetdir
grub2-mkpasswd-pbkdf2
grub2-mkrelpath
grub2-mkrescue
grub2-probe
grub2-reboot
grub2-script-check
grub2-set-default
grub2-setup

The default location for boot loader installation is /boot/grub2/ .

GRUB 2 in Fedora
----------------

The Fedora installer (anaconda) will make sure grub2 is installed for new and
updated systems.  It will run grub2-install to install the boot loader in the
MBR and in /boot/grub2/, and it will write /etc/default/grub and run
grub2-mkconfig to create /boot/grub2/grub.cfg.

The active boot loader will not be changed when the GRUB 2 package is updated.
A new boot loader can be installed with something like:

  grub2-install /dev/sda

grubby will patch grub.cfg (through /etc/grub2.cfg) when new kernels are
installed. The GRUB 2 configuration system in /etc/default/grub and /etc/grub.d/
is thus only used initially by anaconda, but it is possible to generate a new
grub.cfg with:

  grub2-mkconfig -o /boot/grub2/grub.cfg

Documentation
-------------

The GRUB 2 manual can be found in grub.html or on
http://www.gnu.org/software/grub/manual/ .

Support channels
----------------

If you find a bug in this package, report them to the Red Hat Bugzilla [2].
For talk about using grub2, use IRC channel #grub on freenode Network [3].

[2] http://bugzilla.redhat.com/
[3] http://freenode.net/
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