Current location - Recipe Complete Network - Complete recipe book - What USB flash drive does Apple notebook start with?
What USB flash drive does Apple notebook start with?
First of all, Apple doesn't have cmos, but uses efi.

In addition, for your reference, when you start the computer, you can select the startup item by holding down the option key until you see the selection screen.

Also, I advise you not to use a USB flash drive, because the USB flash drive that Apple needs to start is not a USB flash drive system disk under general windows. The USB flash drive that Apple can start must be a mass-produced USB flash drive.

In other words, it is not enough to make a USB flash drive, but also to rewrite the chip of the USB flash drive. The computer is initially identified as a USB flash drive, which needs to be identified as a usbcdrom, and then the system image file is added. And not all brands of USB flash drives can be mass-produced. As far as I know, Lenovo's USB flash drive can basically be mass-produced.

Mass production is a long story, please search.

Why don't you do it? It is because Apple computers using I-series cpu, whether all-in-one or notebook, can't install the system even if you are a mass-produced USB flash drive after I-series abandoned the South Bridge chip. Although you can see it at the beginning, you can't start it after you choose it. I don't know this question yet. Anyway, my own mass production is already like this.

At present, Apple's notebooks and old models that can start USB flash drives are only 13.3 inches.