It happened after I formatted (from ubuntu) the windows partition, using file system ntfs. Now only boots in emergency mode.
The log throws two errors: [drm:intel_set_pch_fifo_underrun_reporting [i915] ERROR uncleared pcf fifo underrun on pch transcoder A [drm:intel_pch_fifo_underrun_irq_handler [i915] ERROR PCH transcoder A FIFO underrun
It also say Timed out waiting for decide dev-disk-by.... .device I think it fails to mount the windows partition, but I wouldn't know how to do it myself. I found some suggestions around the internet but was unable to follow them.