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<main id="web-install">
<h1><a href="#web-install">Web install</a></h1>
<p>This is the beginning of a WebUSB-based installer for GrapheneOS. Very little has
been implemented and it doesn't do anything useful yet. You should ignore this page
and use the <a href="/install">official install guide</a>.</p>
<section id="prerequisites">
<h2><a href="#prerequisites">Prerequisites</a></h2>
<p>You should have at least 2GB of free memory available and 8GB of free storage
space.</p>
<p>You need a USB cable for attaching the device to a laptop or desktop. Whenever
possible, use the high quality standards compliant USB-C cable packaged with the
device. If your computer doesn't have any USB-C ports, you'll need a high quality
USB-C to USB-A cable. You should avoid using a USB hub such as the front panel on
a desktop computer case. Connect directly to a rear port on a desktop or the ports
on a laptop. Many widely distributed USB cables and hubs are broken and are the
most common source of issues for installing GrapheneOS.</p>
<p>Windows 10, macOS Big Sur, Arch Linux, Debian buster and Ubuntu 20.04 LTS are the
officially supported operating systems for installing GrapheneOS. You should make sure
your operating system is up-to-date before proceeding with these instructions. Older
versions and other Linux distributions usually work, but if you encounter problems try
using one of the officially supported options.</p>
<p>For this web-based installation process, the latest stable release of Chromium
or Chrome is recommended.</p>
<p>Installing from an OS in a virtual machine is not recommended. USB passthrough
is often not reliable. To rule out these problems, install from an OS running on
bare metal. Virtual machines are also often configured to have overly limited
memory and storage space.</p>
<p>You need one of the officially supported devices. To make sure that the device can
be unlocked to install GrapheneOS, avoid carrier variants of the devices. Carrier
variants of Pixels use the same stock OS and firmware with a non-zero carrier id
flashed onto the persist partition in the factory. The carrier id activates
carrier-specific configuration in the stock OS including disabling carrier and
bootloader unlocking. The carrier may be able to remotely disable this, but their
support staff may not be aware and they probably won't do it. Get a carrier agnostic
device to avoid the risk and potential hassle. If you CAN figure out a way to unlock a
carrier device, it isn't a problem as GrapheneOS can just ignore the carrier id
and the hardware is the same.</p>
<p>It's best practice to update the stock OS on the device to make sure it's running
the latest firmware before proceeding with these instructions. This avoids running
into bugs, missing features or other differences in older firmware versions. You can
either update the device via over-the-air updates or sideload a full update, which for
Pixel phones can be obtained from the
<a href="https://developers.google.com/android/ota">full update package page</a>.</p>
</section>
<section id="enabling-oem-unlocking">
<h2><a href="#enabling-oem-unlocking">Enabling OEM unlocking</a></h2>
<p>OEM unlocking needs to be enabled from within the operating system.</p>
<p>Enable the developer options menu by going to Settings ➔ About phone and
pressing on the build number menu entry until developer mode is enabled.</p>
<p>Next, go to Settings ➔ System ➔ Advanced ➔ Developer options and toggle on the
'Enable OEM unlocking' setting. This requires internet access on devices with Google
Play services as part of Factory Reset Protection (FRP) for anti-theft protection.</p>
</section>
<section id="connecting-phone">
<h2><a href="#connecting-phone">Connecting the phone</a></h2>
<p>Connect the phone to the computer. On Linux, you'll need to do this again if
you didn't have the udev rules set up when you connected it.</p>
</section>
<section id="unlocking-the-bootloader">
<h2><a href="#unlocking-the-bootloader">Unlocking the bootloader</a></h2>
<p>First, boot into the bootloader interface. You can do this by turning off the
device and then turning it on by holding both the Volume Down and Power buttons.
Alternatively, use ADB to reboot to the bootloader with the button below:</p>
<button id="adb-reboot-bootloader" disabled="disabled">Reboot to bootloader with ADB</button>
<p>Unlock the bootloader to allow flashing the OS and firmware:</p>
<button id="unlock-bootloader" disabled="disabled">Unlock bootloader</button>
<p>The command needs to be confirmed on the device and will wipe all data. Use one
of the volume keys to switch the selection to accepting it and the power button to
confirm.</p>
</section>
<section id="obtaining-factory-images">
<h2><a href="#obtaining-factory-images">Obtaining factory images</a></h2>
<p>You need to obtain the GrapheneOS factory images for your device to proceed with
the installation process.</p>
<p>Press the button below to start the download:</p>
<button id="download-release" disabled="disabled">Download release</button>
<p><strong>Download not implemented yet.</strong></p>
</section>
<section id="flashing-factory-images">
<h2><a href="#flashing-factory-images">Flashing factory images</a></h2>
<p>The initial install will be performed by flashing the factory images. This will
replace the existing OS installation and wipe all the existing data.</p>
<p><strong>Needs to be implemented based on extracting and flashing images from
the downloaded zip (or a split approach to downloading files).</strong></p>
<button id="flash-release" disabled="disabled">Flash release</button>
<p>Wait for the flashing process to complete and proceed to
<a href="#locking-the-bootloader">locking the bootloader</a> before using the
device as locking wipes the data again.</p>
</section>
<section id="locking-the-bootloader">
<h2><a href="#locking-the-bootloader">Locking the bootloader</a></h2>
<p>Locking the bootloader is important as it enables full verified boot. It also
prevents using fastboot to flash, format or erase partitions. Verified boot will
detect modifications to any of the OS partitions and it will prevent reading any
modified / corrupted data. If changes are detected, error correction data is used
to attempt to obtain the original data at which point it's verified again which
makes verified boot robust to non-malicious corruption.</p>
<p>In the bootloader interface, set it to locked:</p>
<button id="lock-bootloader" disabled="disabled">Lock bootloader</button>
<p>The command needs to be confirmed on the device and will wipe all data. Use one
of the volume buttons to switch the selection to accepting it and the power button
to confirm.</p>
</section>
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