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Juno dropped

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Signed-off-by: Robert Wolff <robert.wolff@linaro.org>
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Robert Wolff 2016-12-16 12:53:44 -08:00 • committed by GitHub
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Reference-Platform/Platforms/Enterprise/Installation/Firmware/Install.md
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## Juno R0/R1
### Clean flash
Power on the board, and (if prompted) press Enter to stop auto boot. Once in Juno's boot monitor, use the following commands to erase Juno's flash and export it as an external storage:
```shell
Cmd> flash
Flash> eraseall
Flash> quit
Cmd> usb_on
```
This will delete any binaries and UEFI settings currently stored in the Juno's flash, then mount the Juno's MMC card as an external storage device on your host PC.
In order to do a clean flash on Juno, you will also need to flash the firmware provided by ARM, which can be downloaded from the Linaro ARM LT Versatile Express Firmware git tree:
```shell
git clone -b juno-0.11.6-linaro1 --depth 1 https://git.linaro.org/arm/vexpress-firmware.git
```
Then copy over the UEFI/EDK2 files that were built in the previous steps, making sure they get copied to the right firmware folder location:
```shell
cp $LINARO_EDK2_DIR/Build/ArmJuno/DEBUG_GCC49/FV/bl1.bin vexpress-firmware/SOFTWARE
cp $LINARO_EDK2_DIR/Build/ArmJuno/DEBUG_GCC49/FV/fip.bin vexpress-firmware/SOFTWARE
```
Now just copy all the files that are now available in the 'vexpress-firmware' folder into the mounted MMC card (which is provided as an external storage after calling 'usb_on'):
```shell
cp -rf vexpress-firmware/* /media/recovery
```
Be sure to issue a sync command on your host PC afterwards, which will guarantee that the copy has completed:
```shell
sync
```
Finally, power cycle the Juno. After it has finished copying the contents of the MMC card into Flash, the board will boot up and run the new firmware.
### Upgrade Firmware
If you already have a known working firmware available in your Juno, you simply need to update 'bl1.bin' and 'fip.bin', by mounting Juno's MMC over usb (as described in the procedure for clean flash).
Export Juno's MMC as a usb storage device on your host machine:
```shell
Cmd> usb_on
```
Then just copy over the UEFI/EDK2 files that were built in the previous steps:
```shell
cp $LINARO_EDK2_DIR/Build/ArmJuno/DEBUG_GCC49/FV/bl1.bin /media/recovery/SOFTWARE
cp $LINARO_EDK2_DIR/Build/ArmJuno/DEBUG_GCC49/FV/fip.bin /media/recovery/SOFTWARE
```
Be sure to issue a sync command on your host PC afterwards, which will guarantee that the copy has completed:
```shell
sync
```
Then just power cycle the Juno and the board should see and use the new firmware.
***
## D02
Flashing D02 requires the board to have a working ethernet connection to the FTP server hosting the firmware (since the recovery UEFI image provides an update path via FTP fetch + flash). Flashing also requires entering the Embedded Boot Loader (EBL). This can be reached by typing 'exit' on the UEFI shell that will bring you to a bios-like menu. Goto 'Boot Manager' to find EBL.