Installing the package 'context' (which also provides "syst-tex.mkii" albeit in a different location) seems to fix this also; tex packages upgrade and can finish install without issues afterwards.
- Bug#824853: tex-common: package installation fa... Kristof Csillag
- Bug#824853: Acknowledgement (tex-common: p... Csillag Kristof
- Bug#824853: marked as done (tex-common: In... Debian Bug Tracking System
- Bug#824853: tex-common: package installati... Scott Mcdermott
