Google Gru Chromebook (google-gru)
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Gru Chromebook Gru Chromebook | |
Manufacturer | |
---|---|
Name | Gru Chromebook |
Codename | google-gru |
Released | 2017 |
Type | generic |
Hardware | |
Chipset | Rockchip RK3399 |
CPU | 4x 1.5 GHz Cortex-A53 & 2x 2Ghz Cortex-A72 |
GPU | Mali-T860 MP4 |
Architecture | aarch64 |
Software | |
Original software | ChromeOS |
FOSS bootloader | yes |
postmarketOS | |
Category | community |
Pre-built images | yes |
Contributors
Installation
See for general information Chrome OS devices page.
Tested installation on Acer Chromebook Tab 10 (google-dru):
- Unlock bootloader by following https://www.youtube.com/watch?v=qRQ9gBGmw3c (Note: You can not get into the unlock procedure when device is off. You have to first turn it on and while its on hold all 3 buttons pressed like in video)
- There are prebuild images named 'Google Gru Chromebooks' for download if you do not want to compile an own image here https://postmarketos.org/install/ (Note: Stable release v24.12 and probably newer do not have graphical issues in Wayland any more)
- You need at least a 4GiB MicroSD card or USB-drive (for example with USB-OTG adapter drive) to install it to eMMC memory. Unpack the .img.xz image to a single .img file and use for example dd to write it to the MicroSD card or USB-drive.
- Connect the MicroSD card or USB-Drive to the Chromebook and turn the Chromebook on
- Choose in bootloader mode under developer options 'Boot From USB or SD Card'
- PostmarketOS is booting now and is in a working state. If you do not want to install it to internal eMMC memory, you are ready now.
- For eMMC installation: After PostmarketOS have boot once, it resized the external memory. Turn off the device and remove external memory. Copy the same unextracted .img.xz file you download from the PostmarketOS website to for example the Download directory of the user.
- Boot again external memory with 'Boot From USB or SD Card'
- In PostmarketOS look what is the /dev/xxxxx link for the internal eMMC drive for example with the preinstalled tool 'lsblk'
- In PostmarketOS change with command line ('cd' command) to the directory containing the .img.xz file you copied on there a moment ago and write PostmarketOS to eMMC memory with a command like this:
xzcat 20241226-0322-postmarketOS-v24.12-phosh-22.5-google-gru.img.xz | sudo dd of=/dev/xxxxxxxx status=progress bs=1M oflag=direct iflag=fullblock
- Now the whole eMMC containing ChromeOS have been wiped and replaced with PostmarketOS. You can power off the PostmarketOS running from external memory and remove the external memory.
- When you turn now the device, it would show the developer mode. You can either go into developer options and choose 'Boot From Internal Disk' or just wait after powering it on. After some short time it would beep loud and boot without any 'Boot From Internal Disk' the PostmarketOS eMMC installation.
Audio
See:
We have a workaround for laptops, but not for tablets. Headphones and headset mic are currently broken on tablets.
HDMI codec is currently not supported.
Also, the working range for volume is 0-10%, with 10%-100% providing no additional gain.
Camera
The cameras in the tablet devices are unusable, see pmaports#2214.
Devices
Device | Codename | Category |
---|---|---|
Acer Chromebook Tab 10 | google-dru | community |
AOpen Chromebook Commercial Tab | google-druwl | testing |
Asus Chromebook Flip C101 | google-bob | testing |
Asus Chromebook Tablet CT100 | google-dumo | testing |
CTL Chromebook Tablet Tx1 | google-druwl | testing |
Samsung Chromebook Plus | google-kevin | community |
See also
- pmaports!4252 Initial merge request