The Ubuntu MATE image contains a 64MB boot partition (FAT16) and a 3.60GB root partition (ext4), so it will fit on a 4GB microSD card - but just barely, so don't get your hopes up.

Unfortunately even that is difficult, because the update process complains about not having enough space in the /boot partition, and there is no room to increase the size of that partition. Sigh.

The GPD Pocket line of pocket-sized, laptop-like computers ship with Windows 10, but folks have been figuring out how to run GNU/Linux on them since day one. Last year the developers behind Ubuntu ...