[arch-general] /var lost, how "reinstal" Archlinux?

[Marek Otahal]

Hello,

I've lost content of /var, other partitions are ok, so system somewhat
boots up (to recovery mode).
What is the less pain method to get it again up and running? The problem I
see are pacman list of installed packages? Any other notes on what
important things could be missing?

Thank you very much for any help,
Mark

PS: no backups :-/

-- 
Marek Otahal :o)