Option two: simply uninstall the latest CU and downgrade to CU26 If you have backups of all your other system database from the older version and you are OK with losing any information between these backup and now, then we can install new instance -> update to CU26 (Erland gave you the link) and restore all the system databases using the backups -> next we can bring the user databases. Next there are two approaches Option one: start from new and upgrade to CU26 Remember to check the backups before moving forward! A backup which was not tested is not a backup which we can count on. If the server is not available then stop the service and backup the files (all of them)
If we can login the server and use the BACKUP command then create full backup of all the databases (system and user). First of all, I would backup all the user database!!! I will describe what I would probably do (at least start to do and think as I go), but anything you do is on your responsibility as this is only the basic information and it is best to do it with an expert near you.
What should have been done if you managed the server in the right way is to have a backup after your upgraded the server. The problem is, we don't have the install binaries for SQL Server (CU 26) and cannot download version. In order to use that the old backup you will need an instance of that version and probably rebuild all the system databases to that version. Is there any location we can download the (CU 26) from? Thoughts?Īccording to the message your current version of the server is Cumulative Update 27 and your last backup was done before the update. And they keep pushing us to the latest CU update - version (CU 27) instead. When we try, we can only see the details. Websites won't allow us to download that version. RESTORE DATABASE is terminating abnormally. The backup of the system database on the device X:\MSSQL\BAKS\master\master_BACKUP_20211124_120013.BAK cannot be restoredīecause it was created by a different version of the server () than this server (). Restore database master from disk = 'X:\MSSQL\BAKS\master\master_BACKUP_20211124_120013.BAK' with replace Tried executing the following in single-user mode: Need to restore the master database from backup.
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