Installation instructions
Installing to eMMC Boot (recommended)
By installing Tow-Boot to eMMC Boot, your PINE64 Pinetab (A64) will be able to start using standards-based booting without conflicting with the operating system storage.
To do so, you will need to write the eMMC Boot installer image to a suitable SD card.
# dd if=mmcboot.installer.img of=/dev/XXX bs=1M oflag=direct,sync status=progress
Once done, power-off your Pinetab (A64) and insert the SD card in the SD card slot.
Power it on.
Unless you know the battery is completely charged, it is recommended to connect the tablet to a power source. Just in case.
When starting up with Tow-Boot, which the installer image use, the display will turn on with a blue colour, or will directly boot to the installer GUI.
In the installer GUI, select “Install Tow-Boot to eMMC Boot”. It is not necessary to erase the storage before installing. Erasing the storage can be used to uninstall Tow-Boot (or any other platform firmware installed to the eMMC Boot partition).
Once installed, remove the installation media, and verify Tow-Boot starts from power-on.
Installing to shared storage
Using the shared storage strategy on the Pinetab (A64) can be done by
writing the shared.disk-image.img to an SD card or directly to eMMC.
# dd if=shared.disk-image.img of=/dev/XXX bs=1M oflag=direct,sync status=progress
Device-specific notes
There is no display output for this device.
Startup order conflicts
The Allwinner SoC used in the Pinetab (A64) will always prefer starting the platform firmware (U-Boot) from SD card when available.
When using some pre-built distribution images, it may be desirable to neuter the U-Boot that is baked into the image.
With the usual U-Boot setup for Allwinner, the easiest way to strip U-Boot
from an eMMC or SD image is by running the following command, taking care
to replace [DEVICE] with the device for the storage device.
$ sudo dd if=/dev/zero of=/dev/[DEVICE] bs=8k seek=1 count=4
When running the command on the Pinetab (A64), usually the block device
for the SD card is mmcblk0, and the block device for the eMMC is mmcblk2.
You can use lsblk to look at the block devices available.
NOTE: Make sure the operating system image has a baked-in U-Boot install before issuing the command, and that you are targeting the right storage device.
Some distributions target UEFI boot, and use GPT. Issuing this command will break the partition table.
Finally, on distributions shipping U-Boot, it is prudent to disable the package that provides the automatic upgrade facilities.
- For Manjaro and Arch Linux, the package is called
uboot-pinetab.
Additional features
The tablet can be started in USB Mass Storage mode by holding the volume up button at startup. In this mode, the tablet will work like a USB drive when connected to a host computer.
Booting an operating system from an SD card will require holding the volume down button.