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I have a tablet with a x86-64 intel processor, which is a Chuwi Hi12. This tablet can boot an USB device, so I can boot Linux (ArchLinux) in this tablet. Also, I can install Linux in this device without problems, but removing Android. Android version is 5.1. This tablet comes with Android and Windows.

There is only one way to (re)install android on it. You have to flash de GPT and Android from a PC using Intel Phone Flash Tool. The loaded GPT includes these partitions (output of fdisk -l):

Disk /dev/mmcblk0: 58.2 GiB, 62537072640 bytes, 122142720 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 00000000-0000-0000-0000-000000000000

Device Start End Sectors Size Type
/dev/mmcblk0p1 206848 411647 204800 100M EFI System
/dev/mmcblk0p2 2048 206847 204800 100M Microsoft basic data
/dev/mmcblk0p3 411648 473087 61440 30M unknown
/dev/mmcblk0p4 473088 534527 61440 30M unknown
/dev/mmcblk0p5 534528 536575 2048 1M unknown
/dev/mmcblk0p6 536576 569343 32768 16M unknown
/dev/mmcblk0p7 569344 5812223 5242880 2.5G Linux filesystem
/dev/mmcblk0p8 5812224 6336511 524288 256M Linux filesystem
/dev/mmcblk0p9 6336512 27308031 20971520 10G Linux filesystem
/dev/mmcblk0p10 27308032 27310079 2048 1M Linux filesystem
/dev/mmcblk0p11 27310080 27326463 16384 8M Linux filesystem

Partition table entries are not in disk order.


Disk /dev/mmcblk0boot1: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mmcblk0boot0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 14.9 GiB, 16008609792 bytes, 31266816 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x610aca7c

Device Boot Start End Sectors Size Id Type
/dev/sda1 * 0 1128447 1128448 551M 0 Empty
/dev/sda2 164 131235 131072 64M ef EFI (FAT-12/16/32)


Disk /dev/loop0: 442.1 MiB, 463548416 bytes, 905368 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Main storage device is mmcblk0. As you can see, Android only takes around 13 GiB of the device, but it has about 58 GiB of storage.

Because of this is the only way to install android to this tablet (with drivers), I have to install first android, and after that, I would like to install Linux (using the 45 GiB free memory). I created new partitions (using fdisk) after Android partitions, and I installed Linux on this partition, but I can not configure GRUB to recognize android and Linux, so my question is: How to make GRUB to recognize both Android and Linux (Arch Linux, x86_64-efi)?

Thank you very much