Install default Debian release (buster) on /dev/sda2 and install bootmanager GRUB in MBR (master boot record) of /dev/sda.
Use /dev/sda1 as EFI partition (requires EFI support in booted system).
Install default Debian release (buster) on /dev/sda2 and install bootmanager GRUB in MBR (master boot record) of /dev/sda.
Use /dev/sda1 as EFI partition (requires EFI support in booted system).