/var/lib disappeared

[Bruno DAMOUR]

Hello,
I'm begging for help, my /var/lib disappeared. I don't know why, but the 
most important is to recreate it.
What is usually there ? I know i had my postgresql data in there, but 
anything more ?
Please help with whats's in yours...

Bruno

PS : it must be not that bad because I didn't yet notice anything wrong 
aside of postgresql
PS2 : is there any config change that could have borked my /var/lib ? 
I'm runnung up-to-date current (< 1W)