Comment 2 for bug 1545433

The upgrade probably ran out of space -- the root is only 5G, so unless care is taken to update incrementally, you will run out of space. I have successfully updated three of the STCK1A8LFC Intel Compute Sticks, and used a micro-SD card to provide additional space for the package downloads. A USB stick could be used for the same purpose, make the link /var/cache/apt/archives to a directory on the additional storage set up with the "lock" file and "partial" directory. Of course, update the BIOS on the device first, there have been many fixes. The supplied oem packages provide working HDMI audio, wireless, and bluetooth.

The 4.4 kernel upgrade offered to the user will have similar space problems. The only glitch is the HDMI audio, which needs an edit of the i915_component.h file (bug 1755309). The oem HDMI audio package install will then work.