Working ebuild for installing postmarketos on the Amazon Fire 7 HD (2017) codename Austin
Amazon Fire 7 (2017) postmarketOS Armv7l Mediatek MT8127 Mali-450MP4 600x1024 display 1GB RAM Linux 3.10.54
What seems to work:
Boot Touch screen Battery percentage Usb internet OTG usb Wayland, Mate, Xfce4, Lxde, Sxmo, i3wm
Does NOT work:
Wifi & Bluetooth (no drivers) GPU acceleration (drivers do not work) Audio Sleep and fully turning off the display Screen rotation Wifi adapter does not work even with drivers and kernel support, mobo support issue(?) FDE Cameras You tell me
Special options: *Must be flashed to USERDATA partition as system partition is too small
msm-fb-refresher packaged is added to the depends to make the screen refresh. After flashing the device must be booted into recovery once. From the recovery it is to be powered off and booted and then as normal. This is because the device depends on the AMONET exploit which is applied by twrp after every flash.
Flashing Instructions
This assumes that you already have linux installed and the bootloader on the tablet is unlocked. Don't worry if it looks complicated. If you are unsure of something ask on the postmarketos matrix or leave a comment for help.
Install pmbootstrap as stated in the postmarketos wiki, does not matter which options or device you pick.
Once that is done download and drag the two folders in the git repo into "/home/YOURUSER/.local/var/pmbootstrap/cache_git/pmaports/device/testing/" also displayed as "~/.local/var/pmbootstrap/cache_git/pmaports/device/testing".
Run pmbootstrap init and select amazon as manufacture and austin as the device, mate, lxde, xfde, are confirmed working.
Run pmbootstrap install
Boot into twrp and wipe all partitions including data
Boot into the hacked bootloader from the twrp options
Run pmbootstrap pmbootstrap flasher flash_rootfs --partition userdata (system partion is too small to flash!) and once it is done flashing run pmbootstrap flasher flash_kernel
Unplug the device, wait 10 seconds and then hold the power button. Once it is powered on YOU MUST boot it into twrp at least once as it needs to restore the AMONET exploit, until you do that the device will not boot.
Issues
If something does not work such as the display rotated wrong or device not booting just comment or open an issue, I changed the rotation of the display in the kernel options to horizontal but i did not test the effects as I already have android with books on it.
Reinstall android/lineage
Simple as cake, just boot into twrp wipe all partions(some will fail), you may need to resize and fix until it starts working. You just need the system and data partitions to be reformated to ext4 even if they already are. Then just flash the lineageos zip file and reboot the device normally(amonet is fine)
Amazon Fire 7 (2017) postmarketOS Armv7l Mediatek MT8127 Mali-450MP4 600x1024 display 1GB RAM Linux 3.10.54
What seems to work:
Boot Touch screen Battery percentage Usb internet OTG usb Wayland, Mate, Xfce4, Lxde, Sxmo, i3wm
Does NOT work:
Wifi & Bluetooth (no drivers) GPU acceleration (drivers do not work) Audio Sleep and fully turning off the display Screen rotation Wifi adapter does not work even with drivers and kernel support, mobo support issue(?) FDE Cameras You tell me
Special options: *Must be flashed to USERDATA partition as system partition is too small
msm-fb-refresher packaged is added to the depends to make the screen refresh. After flashing the device must be booted into recovery once. From the recovery it is to be powered off and booted and then as normal. This is because the device depends on the AMONET exploit which is applied by twrp after every flash.
Flashing Instructions
This assumes that you already have linux installed and the bootloader on the tablet is unlocked. Don't worry if it looks complicated. If you are unsure of something ask on the postmarketos matrix or leave a comment for help.
Install pmbootstrap as stated in the postmarketos wiki, does not matter which options or device you pick.
Once that is done download and drag the two folders in the git repo into "/home/YOURUSER/.local/var/pmbootstrap/cache_git/pmaports/device/testing/" also displayed as "~/.local/var/pmbootstrap/cache_git/pmaports/device/testing".
Run pmbootstrap init and select amazon as manufacture and austin as the device, mate, lxde, xfde, are confirmed working.
Run pmbootstrap install
Boot into twrp and wipe all partitions including data
Boot into the hacked bootloader from the twrp options
Run pmbootstrap pmbootstrap flasher flash_rootfs --partition userdata (system partion is too small to flash!) and once it is done flashing run pmbootstrap flasher flash_kernel
Unplug the device, wait 10 seconds and then hold the power button. Once it is powered on YOU MUST boot it into twrp at least once as it needs to restore the AMONET exploit, until you do that the device will not boot.
Issues
If something does not work such as the display rotated wrong or device not booting just comment or open an issue, I changed the rotation of the display in the kernel options to horizontal but i did not test the effects as I already have android with books on it.
Reinstall android/lineage
Simple as cake, just boot into twrp wipe all partions(some will fail), you may need to resize and fix until it starts working. You just need the system and data partitions to be reformated to ext4 even if they already are. Then just flash the lineageos zip file and reboot the device normally(amonet is fine)