After recently upgrading my Mac, TimeMachine started suggesting that it had verified the integrity of the backup and that I needed to start a new backup. I have my backup on a NAS mounted as afs on my Mac. However, when I looked at the files in the backup, macOS had renamed my TimeMachine backup to .purgeable.sparsebundle. When I looked in the directory, there were no files except the bands directory. Now it seems the bands still exist but none of the plist files exist. I accidentally started a new backup and I am not sure if that deleted these files and renamed the sparsebundle but regardless, I don't have the files. I then proceeded to copy over the plists from the new backup to this directory and tried to follow the tutorial here. However, when I execute hdiutil attach command, I see the following output -
hdiutil attach -nomount -noverify -noautofsck /Volumes/Backups/djmbp.sparsebundle /dev/disk2 GUID_partition_scheme /dev/disk2s1 EFI
The volume is missing. Help appreciated!