Am Tue, Dec 30, 2025 at 07:51:22PM +0100, schrieb Jonas Lochmann:
> Am Tue, Dec 30, 2025 at 06:30:43PM +0100, schrieb Stefan Hellermann:
> > But: sysupgrade the virtual machine to the same image fails:
> 
> You need to force it. The platform specific (x86) upgrade code looks
> for certain magic bytes - I assume grub itself or data in the bios boot
> partition.

With my "[PATCH] x86: check for gpt header in platform_check_image" this
issue does not occur anymore.

The old upgrade routine checked for BIOS boot code in the MBR, which an
UEFI only image does not contain.

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