We have a server with Fedora Core2 installed by one of our collegue. We had hardware RAID 1 configured and few days ago one of the hard disk died and we replaced faulty hard disk and rebuild the raid from Bios.
this is what we did and after this we just tried rebooting normally. there aren't any error on log because whole file system is read only nothing can be written on to log.
Problem i thing is when system boots it is seeing two copies of everything and system must be seing other copy as open so it turned everything as read only(as it is build as a RAID 1 on two hard disk).