How does the IDE know which bootloader to burn when you "Burn Bootloader" ?
OK I got some Nano Arduinos, and finally got them to blink using "old bootloader".
I used an easily found procedure using a UNO as "Arduino ISP".
Everything went along without incident, except: I wished to follow advice given somewhere to burn the UNO bootloader, at no point was I asked about this.
I got the result, a savings of memory, see below, and the Nano now can be called a UNO for regular programming.
Sketch uses 1004 bytes (3%) of program storage space. Maximum is 30720 bytes.
Sketch uses 1004 bytes (3%) of program storage space. Maximum is 32256 bytes.
Curiously, uploading blink appears to work selecting either Nano or UNO, the only difference is in the reported Maximum (30270 if I call it a Nano, 32256 if I call it a UNO).
So I just wanna know where I ended up.