Moving Fastboot to Userspace

Get active system slot fastboot getvar current-slot fastboot getvar all Get active system slot

Boot your smartphone into Fastboot Mode · Now, connect your smartphone to the PC using a USB cable · Open a Command Prompt, Terminal, or

fastboot get active slot 查詢目前使用那個槽， 看目前的slot是a還是b，一般都是a。1$ sudo fastboot getvar current-slot 參考 adb

fastboot change slot Get active system slot fastboot getvar current-slot fastboot getvar all Get active system slot