Please help me with this. I got good advice one year ago on a similar question.
I wish to buy an external SSD drive and install debian on it, as an efi system with 3 partitions: efi, swap, and root.
But I wonder that maybe the debian installer will tell me that there is missing non-free firmware for the usb drive.
Can I ignore this error during the installer?
Can I erase everying that is pre-installed on the disc or do I need to keep stuff for their factory firmware?
I also want to have a fat32 partition on it so that windows can mount. Is it better if the fat32 partition is at the beginning of the drive so that windows detect it? Or should the efi partition be first?
Unfortunately, in 2020, Windows cannot mount ext4!
As a parenthesis, the debian graphical install in 2020 still has several steps that one has to click every 30 min so that one cannot just run the installer and come back and it is installed. Or maybe I should pick the advanced install?