CentOS - Aug 2021 - Upgrading (?) from legacy boot to UEFI

On Aug 28, 2021, at 05:58, Rob Kampen <rkampen at kampensonline.com>
wrote:
> 
> As to the RH decision to default to a legacy boot / MBR oriented install
based upon size of disk ... words fail me.
I don?t think that it chooses legacy boot based on the size of disk, but based
on how you booted the installer.  If you booted from the installer as a legacy
boot item, it installs as a legacy bootloader, but if you disable the BIOS
option to use a legacy bootloader, it will boot the installer as a UEFI boot and
choose to install a UEFI grub2 setup.

?
Jonathan Billings

On August 28, 2021 8:07:30 AM CDT, Jonathan Billings <billings at
negate.org> wrote:
>On Aug 28, 2021, at 05:58, Rob Kampen <rkampen at kampensonline.com>
wrote:
>> 
>> As to the RH decision to default to a legacy boot / MBR oriented
install based upon size of disk ... words fail me.
>
>I don?t think that it chooses legacy boot based on the size of disk, but
based on how you booted the installer.  If you booted from the installer as a
legacy boot item, it installs as a legacy bootloader, but if you disable the
BIOS option to use a legacy bootloader, it will boot the installer as a UEFI
boot and choose to install a UEFI grub2 setup.
>
+1

And the same seems to be true about other UNIX like systems, at least Debian and
clones, FreeBSD and clones.

Valeri
>?
>Jonathan Billings
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++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
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