We lost a RAID controller and had to reconstruct our Raid 5 Array. The reconstruction and data recovery was completed successfully without errors and all other files/databases are accessible/running smoothly… except…
When I try to load the .kdbx database, the error Keepass returns is, "Failed to load…" - "the file signature is invalid"
I attempted the import/restore, but no luck.
My first thought is that it is some kind of a permissions issue. (Since the file was working fine until it was restored from one drive onto another)
It's just so odd that all other recovered files are working correctly. I don't believe this is truly a corrupted database; there is something else that is causing the failure to load.
I've read through other posts on this subject; there doesn't appear to be a solution beyond the use of the repair method (creating a new DB and importing the old one)
Are you sure the file is a database? Open it in Notepad to check.
Restore from backup is probably the only option.
Yes, quite certain. I opened it in WinHex.
You can verify whether the file is a KDBX file or not by looking at the first bytes (e.g. using WinHex). All KDBX files start with the byte sequence 03 D9 A2 9A 67 FB 4B B5.