Android fastboot waiting for devices

Question

I am trying to load a customized kernel on my NVIDIA test git. I typed fastboot boot myImage after which which I get:

 
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Answer 1

To use the fastboot command you first need to put your device in fastboot mode:

$ adb reboot bootloader

Once the device is in fastboot mode, you can boot it with your own kernel, for example:

$ fastboot boot myboot.img

The above will only boot your kernel once and the old kernel will be used again when you reboot the device. To replace the kernel on the device, you will need to flash it to the device:

$ fastboot flash boot myboot.img

Hope that helps.