Didn't notice this message before posting this one : http://www.howtoforge.com/forums/showthread.php?t=57268
, which basically describes the same problem.
May I ask if the upgrade is safe even after the problem appeared ?
Second question : what is the safer, and if possible automatic way to restore all the data in these files ? I read about some writeconf script but the thread was rather old so didn't dare to try.
Last question : should these files be backed up, as they're quite important but the information in it should remain confidential, so maybe it's not a good idea to replicate it ?
Last question number two : is there a known origin to this problem, or is it complete random ? I asked the question about an unusual (for me) domain name, but it's only an uneducated guess.
Please help this poor soul who fears to touch anything since its world crumbled down two days ago.