After Installing 6.0 via ISO grub throws an error

[Jeansburger]

I installed proxmox on my Dell R710 and when I try to boot the system when the disk that holds the proxmox installation when I go through the normal boot process I get an error of

Alloc magic is broken at 0xXXXXXXXXX: 0
Aborted. Press any key to exit.

Some googling leads me to believe this is a UEFI issue and if I try to select the boot drive from the boot selection menu the system boots up just fine. I'm trying to boot the system in legacy bios mode not UEFI.

Is there a way to fix grub so that it no longer uses EFI anywhere in the bootup? Or is there a way to tell the installation to not use EFI in grub?

 

[Stoiko Ivanov]

Is there a way to fix grub so that it no longer uses EFI anywhere in the bootup? Or is there a way to tell the installation to not use EFI in grub?

This needs to be done inside the BIOS/Firmware - since it decides whether it boots in UEFI or in legacy mode.
The PVE installer only installs a grub for efi if it detects the system is booted in uefi mode (it also installs one in the bios_boot partition for legacy boot fallback)
(you can also just wipe the ESP if you're in doubt)

I hope this helps!