130 lines
8.6 KiB
HTML
130 lines
8.6 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8"/>
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<meta name="theme-color" content="#212121"/>
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<meta name="viewport" content="width=device-width, initial-scale=1"/>
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<meta name="description" content="GrapheneOS is a security and privacy focused mobile OS with Android app compatibility."/>
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<title>GrapheneOS</title>
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<link rel="stylesheet" href="/grapheneos.css?0"/>
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</head>
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<body>
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<nav>
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<ul>
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<li class="active"><a href="/">GrapheneOS</a></li>
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<li><a href="/donate">Donate</a></li>
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<div id="content">
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<h1>GrapheneOS releases</h1>
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<p>These are early sample releases of GrapheneOS, an open source privacy and security
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oriented mobile OS with Android app compatibility. Many past features of the project
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still need to be ported to the current releases. The project is in the 5th year of
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development and has been reborn as a non-profit open source project not strongly
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associated with any specific company or organization. It will take some time for the
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pieces to come into place turning it into a much broader and more sustainable project
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with a strong development team. There are multiple organizations and companies in the
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process of backing this new incarnation of the hardened mobile OS project.</p>
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<p>See the <a href="https://github.com/GrapheneOS">GitHub organization</a> for sources
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of the OS sub-projects including the cutting edge
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<a href="https://github.com/GrapheneOS/hardened_malloc/blob/master/README.md">new
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hardened memory allocator</a>.</p>
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<p>These official GrapheneOS releases are supported by the
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<a href="https://github.com/GrapheneOS/Auditor/releases">Auditor app</a> and
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<a href="https://attestation.app/">attestation service</a> for hardware-based
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attestation. For more details, see the <a
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href="https://attestation.app/about">about page</a> and <a
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href="https://attestation.app/tutorial">tutorial</a>.</p>
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<p>The sources are available via the
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<a href="https://github.com/GrapheneOS/platform_manifest">manifest on GitHub</a>.</p>
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<p>Bitcoin donations can be sent to 3QpKs45BLXirWAgYtV1sTCbAkfUe7HByR5 to support the
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project. Alternatively, PayPal donations can be sent to danielmicay@gmail.com (please
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state that it's a GrapheneOS donation in the payment reason). Other ways of making
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donations will be provided in the future including donations via a registered charity
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in the US supporting the project.</p>
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<h2>Installation</h2>
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<h3>Prerequisites</h3>
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<p>You should have at least 2GB of free memory available.</p>
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<p>You need the unlocked variant of one of the supported devices, not a locked carrier
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specific variant.</p>
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<p>You need an updated copy of the <code>fastboot</code> tool and it needs to be
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included in your <code>PATH</code> environment variable. You can run <code>fastboot
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--version</code> to determine the current version. It should be at least
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<code>28.0.0</code>. Don't proceed with the installation process until this is set up
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properly in your current shell. A very common mistake is using an outdated copy of
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<code>fastboot</code> from a Linux distribution package not receiving regular updates.
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Make sure that the <code>fastboot</code> found earliest in your <code>PATH</code> is
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the correct one if you have multiple copies on your system. You can run <code>which
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fastboot</code> to determine where the tool being used is coming from. Older versions
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do not have support for current devices. Very old versions of <code>fastboot</code>
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from several years ago are still shipped by Linux distributions like Debian and lack
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the compatibility detection of modern versions so they can soft brick devices.</p>
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<h3>Enabling OEM unlocking</h3>
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<p>OEM unlocking needs to be enabled from within the operating system.</p>
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<p>Enable the developer settings menu by going to Settings -> System -> About phone
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and pressing on the build number menu entry until developer mode is enabled.</p>
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<p>Next, go to Settings -> System -> Advanced -> Developer settings and toggle on the
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'Enable OEM unlocking' setting. This requires internet access on devices with Google
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Play Services.</p>
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<h3>Unlocking the bootloader</h3>
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<p>First, boot into the bootloader interface. You can do this by turning off the
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device and then turning it on by holding both the Volume Down and Power buttons.</p>
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<p>The bootloader now needs to be unlocked to allow flashing new images:</p>
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<pre>fastboot flashing unlock</pre>
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<p>The command needs to be confirmed on the device.</p>
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<h3>Obtaining factory images</h3>
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<p>The initial install will be performed by flashing the factory images. This will
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replace the existing OS installation and wipe all the existing data.</p>
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<p>You can download the factory images from the bottom of this page.</p>
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<p>Verify the official factory images using the GPG signature:</p>
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<pre>gpg --recv-keys 65EEFE022108E2B708CBFCF7F9E712E59AF5F22A
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gpg --verify blueline-factory-2018.12.21.18.zip.sig blueline-factory-2018.12.21.18.zip</pre>
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<p>When this signing key is replaced, the new key will be signed with it.</p>
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<h3>Flashing factory images</h3>
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<p>Next, extract the factory images and run the script to flash them. Note that the
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<code>fastboot</code> command run by the flashing script requires a fair bit of free
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space in a temporary directory, which defaults to <code>/tmp</code>:<p>
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<pre>unzip blueline-factory-2018.12.21.18.zip
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cd blueline-pq1a.181205.006
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./flash-all.sh</pre>
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<p>Use a different temporary directory if your <code>/tmp</code> doesn't have enough
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space available:</p>
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<pre>mkdir tmp
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TMPDIR="$PWD/tmp" ./flash-all.sh</pre>
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<p>Wait for the flashing process to complete and for the device to boot up using the
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new operating system.</p>
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<p>You should now proceed to locking the bootloader before using the device as locking
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wipes the data again.</p>
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<h3>Locking the bootloader</h3>
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<p>Locking the bootloader is important as it enables full verified boot. It also prevents using
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fastboot to flash, format or erase partitions. Verified boot will detect modifications to any of
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the OS partitions (vbmeta, boot/dtbo, system, vendor) and it will prevent reading any modified /
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corrupted data. If changes are detected, error correction data is used to attempt to obtain the
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original data at which point it's verified again which makes verified boot robust to non-malicious
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corruption.</p>
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<p>Reboot into the bootloader menu and set it to locked:</p>
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<pre>fastboot flashing lock</pre>
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<p>The command needs to be confirmed on the device since it needs to perform a factory
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reset.</p>
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<p>Unlocking the bootloader again will perform a factory reset.</p>
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<h3>Disabling OEM unlocking</h3>
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<p>OEM unlocking can be disabled again in the developer settings menu within the
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operating system after booting it up again.</p>
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<h2>Replacing GrapheneOS with the stock OS</h2>
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<p>Installation of the stock OS via the stock factory images is the same process
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described above. However, before locking, there's an additional step to fully revert
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the device to a clean factory state.</p>
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<p>The GrapheneOS factory images flash a non-stock Android Verified Boot key which
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needs to be erased to fully revert back to a stock device state. After flashing the
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stock factory images and before locking the bootloader, you should erase the custom
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Android Verified Boot key to untrust it:</p>
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<pre>fastboot erase avb_custom_key</pre>
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<h2>Stable channel</h2>
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<div id="stable"></div>
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<h2>Beta channel</h2>
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<div id="beta"></div>
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<script src="/grapheneos.js"></script>
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</div>
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</body>
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</html>
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