Nvidia Tegra armv7 (nvidia-tegra-armv7)
A generic port for Nvidia Tegra 2/3/4 devices.
| Manufacturer | Nvidia |
|---|---|
| Name | Tegra ARMv7 |
| Codename | nvidia-tegra-armv7 |
| Released | 2011 |
| Type | generic |
| Hardware | |
| Chipset | Nvidia Tegra 2/3/4 |
| GPU | ULP GeForce |
| Architecture | armv7 |
| Software | |
| FOSS bootloader | yes |
| postmarketOS | |
| Category | community |
| Pre-built images | yes |
| This device is based on the Tegra 2. See the SoC page for common tips, guides and troubleshooting steps |
| This device is based on the Tegra 3. See the SoC page for common tips, guides and troubleshooting steps |
| This device is based on the Tegra 4. See the SoC page for common tips, guides and troubleshooting steps |
Contributors
- Clamor
- Jenneron
Devices
| Device | Category | Chipset | primary | secondary |
|---|---|---|---|---|
| Asus Eee Pad Transformer | community | Nvidia Tegra 2 (T20) | Y | Y |
| Asus Eee Pad Transformer Prime | community | Nvidia Tegra 3 (T30) | Y | Y |
| Asus Transformer Infinity | community | Nvidia Tegra 3 (T33) | Y | Y |
| Asus Transformer Pad | community | Nvidia Tegra 3 (T30L) | Y | Y |
| Asus Transformer Pad 3G | community | Nvidia Tegra 3 (T30L) | Y | Y |
| Google (ASUS) Nexus 7 (2012) | community | Nvidia Tegra 3 (T30L) | Y | N |
| Google (ASUS) Nexus 7 (2012) GSM | community | Nvidia Tegra 3 (T30L) | Y | N |
| LG Optimus 4X HD | testing | Nvidia Tegra 3 (AP33H) | Y | P |
| LG Optimus Vu | community | Nvidia Tegra 3 (AP33) | Y | P |
| Toradex Colibri T30 | testing | Nvidia Tegra 3 (T30) | ||
| WEXLER Tab 7t | testing | Nvidia Tegra 3 (T30L) | Y | N |
Prerequisites
In order to install postmarketOS on your device you need a few conditions to be met. You MUST have one of compatible devices (check list above) with unlocked bootloader and ability to boot at least into recovery mode.
Installation process
Step 0: creating backups
If you have Google Nexus 7 (2012) or ASUS Transformer you should perform backup using this guide (download links are dead but files can be found here). You should have a set of images (bricksafe.img and other) which ensure that original bootloader can be restored. Otherwise restoring original state of device is extremely complicated. Additionally backup all valuable data from your device.
Step 1: Building and preparing U-Boot
Preferred source is the master branch of mainline U-Boot repo
U-Boot documentation contains most of stuff needed to prepare it to be flashed onto device as primary last stage bootloader and covers use of re-crypt, but it does not touch fusee gelee exploit.
In order to correctly use re-crypt you would need to get SBK of your device. For this purpose Fusee Gelee exploit is used with fusee tools. Refer to this section to get SBK of your device.
Step 2: U-Boot flashing
Once you get repart-block.bin or split images from re-crypt it can be flashed using nvflash or using U-Boot fastboot interface. To check if U-Boot correctly boots on your device you can refer to this section of fusee tools readme to pre-load U-Boot into RAM. If everything is correct you can flash processed U-Boot as described in board U-Boot documentation.
Step 3: Installing postmarketOS
For devices with microSD available preferred method of installation is flashing to microSD. In case of emmc only devices listallation can be performed using pmbootstrap install --disk /dev/sdX when exposing eMMC to the host with U-Boot.
There are also prebuilt images at https://images.postmarketos.org/bpo/edge/nvidia-tegra-armv7. Use xzcat xxxxxxxx-xxxx-postmarketOS-channel-ui-nvidia-tegra-armv7.img.xz | sudo dd of=/dev/sdX status=progress. Where /dev/sdX is the block device exposed by U-Boot. You can also flash with GUI tools like gnome-disks.