c7fab44e59
Since we no longer install rpiboot into /usr/bin then we need ./rpiboot to make it run from the current directory...
37 lines
1.3 KiB
Markdown
37 lines
1.3 KiB
Markdown
# USB boot code
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This is the USB MSD boot code which should work on the Raspberry Pi model A, Compute Module, Compute
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module 3 and Raspberry Pi Zero.
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This version of rpiboot has been modified to work from directories which contain the booting
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firmware. There is a default directory msd/ which contains bootcode.bin and start.elf to turn
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the Raspberry Pi device into a USB Mass Storage Device (MSD).
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## Building
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Clone this on your Pi or an Ubuntu linux machine
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```
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$ git clone --depth=1 https://github.com/raspberrypi/usbboot
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$ cd usbboot
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$ sudo apt-get install libusb-1.0-0-dev
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$ make
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$ sudo ./rpiboot
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```
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## Running your own (not MSD) build
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If you would like to boot the Raspberry Pi with a standard build you just need to copy the FAT partition
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files into a subdirectory (it must have at the minimum bootcode.bin and start.elf). If you take a
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standard firmware release then this will at the very least boot the linux kernel which will then stop
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(and possibly crash!) when it looks for a filesystem. To provide a filesystem there are many options,
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you can build an initramfs into the kernel, add an initramfs to the boot directory or provide some
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other interface to the filesystem.
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```
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$ sudo ./rpiboot -d boot
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```
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This will serve the boot directory to the Raspberry Pi Device.
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