I am using an Upboard so a x86 system with Grub as bootloader.
When booting, the eMMC is referred as
hd0 by Grub so the script
grub.cfg handle the partitions properly.
But for my system I need an external flash drive to be plugged at boot some time.
But in that case, Grub refers the USB flash drive as
hd0 and the eMMC as
hd1 so the Grub script do not work and ends with the Grub command line.
Is there a mean to force grub to always use
hd0 for the eMMC?