Re: Booting from a USB disk

[Mike Pumford <mpumford%mudcovered.org.uk@localhost>]

On 28/04/2020 11:23, Ilia Zykov wrote:
> I had such a case. The efi of my old server(it was Intel MB) only
> supported a 16 bit vfat boot partition. And if during installation I
> selected it over 128MiB, then the installer formatted it at 32 bit vfat
> and I could not boot in EFI mode. See the default parameters
> “mkfs.vfat –F”.
That could be a difference. I was migrating an existing install onto a 
new disk so all my EFI partitions were created manually so I might well 
have overridden default arguments if thats what the instructions I was 
following said to do. It could also be dependent on the age of the EFI 
BIOS. With newer ones being more flexible about VFAT format.

Mike