Could you please correct an old problem of the Debian installation routine?
If you chose to install on an USB stick, you may want to have to bootloader on that stick as well.
The installation routine let you chose to install grub on that drive. It will write the gruß bootloader, but omits to set the "boot" flag to the partition, so that the stick will not boot.
Wouldn't it be wise to set the "boot" flag to the USB-drive when the bootloader is written?
Thank you for considering
Regards