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|
+++
date = 2022-09-21
title = "Installing Graphene OS on the Pixel 6 Pro"
description = "A retrospective on the successful command-line installation of Graphene OS on a Pixel 6 Pro."
+++
## Introduction
After using iOS for a couple of years, I finally took the plunge and
purchased a Pixel 6 Pro in order to test and use [GrapheneOS]
(<https://grapheneos.org>).
The installation process was rather quick once you have the tools and
files you need. Overall, it can be done in just a few minutes.
## Gathering Tools & Files
### Android Tools
First, in order to interact with the device, we will need the [Android
platform
tools](https://developer.android.com/studio/releases/platform-tools.html).
Find the Linux download and save the ZIP folder to your preferred
location.
Once we've downloaded the files, we will need to unzip them, enter the
directory, and move the necessary executables to a central location,
such as `/usr/bin/`. For this installation, we only need the
`fastboot` and `adb` executables.
```sh
cd ~/Downloads
```
```sh
unzip platform-tools_r33.0.3-linux.zip
cd platform-tools
sudo mv fastboot /usr/bin/
sudo mv adb /usr/bin
```
### GrapheneOS Files
Next, we need the [GrapheneOS files](https://grapheneos.org/releases)
for our device and model. For example, the Pixel 6 Pro is codenamed
`raven` on the release page.
Once we have the links, let's download them to our working directory:
```sh
curl -O https://releases.grapheneos.org/factory.pub
curl -0 https://releases.grapheneos.org/raven-factory-2022091400.zip
curl -0 https://releases.grapheneos.org/raven-factory-2022091400.zip.sig
```
1. Validate Integrity
In order to validate the integrity of the downloaded files, we will
need the `signify` package and Graphene's
`factory.pub` file.
```sh
sudo dnf install signify
```
```sh
curl -O https://releases.grapheneos.org/factory.pub
```
Then we can validate the files and ensure that no data was corrupted
or modified before it was saved to our device.
```sh
signify -Cqp factory.pub -x raven-factory-2022091400.zip.sig && echo verified
```
2. Unzip Files
Once the files are verified, we can unzip the Graphene image and
enter the directory:
```sh
unzip raven-factory-2022091400.zip && cd raven-factory-2022091400
```
## Installation Process
### Enable Developer Debugging & OEM Unlock
Before we can actually flash anything to the phone, we will need to
enable OEM Unlocking, as well as either USB Debugging or Wireless
Debugging, depending on which method we will be using.
To start, enable developer mode by going to `Settings` >
`About` and tapping `Build Number` seven (7)
times. You may need to enter your PIN to enable this mode.
Once developer mode is enabled, go to `Settings` >
`System` > `Devloper Options` and enable OEM
Unlocking, as well as USB or Wireless Debugging. In my case, I chose USB
Debugging and performed all actions via USB cable.
Once these options are enabled, plug the phone into the computer and
execute the following command:
```sh
adb devices
```
If an unauthorized error occurs, make sure the USB mode on the phone is
changed from charging to something like "File Transfer" or "PTP."
You can find the USB mode in the notification tray.
### Reboot Device
Once we have found the device via `adb`, we can either boot
into the bootloader interface by holding the volume down button while
the phone reboots or by executing the following command:
```sh
adb reboot bootloader
```
### Unlock the Bootloader
The phone will reboot and load the bootloader screen upon startup. At
this point, we are ready to start the actual flashing of GrapheneOS onto
the device.
**NOTE**: In my situation, I needed to use `sudo` with every
`fastboot` command, but not with `adb` commands. I
am not sure if this is standard or a Fedora quirk, but I'm documenting
my commands verbatim in this post.
First, we start by unlocking the bootloader so that we can load other
ROMs:
```sh
sudo fastboot flashing unlock
```
### Flashing Factory Images
Once the phone is unlocked, we can flash it with the
`flash-all.sh` script found inside the
`raven-factory-2022091400` folder we entered earlier:
```sh
sudo ./flash-all.sh
```
This process should take a few minutes and will print informational
messages as things progress. Avoid doing anything on the phone while
this process is operating.
### Lock the Bootloader
If everything was successful, the phone should reboot a few times and
finally land back on the bootloader screen. At this point, we can
re-lock the bootloader to enable full verified boot and protect the
device from unwanted flashing or erasure of data.
```sh
sudo fastboot flashing lock
```
Once done, the device will be wiped and ready for a fresh set-up!
|
