Got one out of three back doing this, this one was created earlier this week

The other two think they had a backup on 3/15, although the backup file doesn't exist

For...

MasterCopy

- Full back up of MasterCopy: MasterCopyFull.bak

InstanceA

- Differential backup of InstanceA: InstanceADiff.bak

Right clicking on restore database...

Restore from device and selecting the two above back ups

I get this message:

The volume on device 'C:\PathToFullBackup\FullbackFile.bak' is not part of a multiple family media set. BACKUP WITH FORMAT can used to form a new media set. RESTORE HEADERONLY...

Additional details:

I have three databases in this condition and some are at least a weeks worth of differential, no full backups, except the one from which it was created (which...

I have three databases in this condition and some are at least a weeks worth of differential, no full backups, except the one from which it was created (which is...