We did an WSUS update yesterday which resulted in the the disconnection of WSS 3.0 from the database. This problem has been addressed on EE previously at:
My problem is that in order to start this process i need to back up my database. I cannot open it via the sharepoint admin page. I also cannot find an instance of SQL running on that server to connect to. We also tried using the stsadm but since there is no connection between Wss 3.0 and the database, it returned an error that it couldnt locate the farm.
Where else should we be looking?