This is a modification of an original post for use when you have a corrupt sparsebundle backup on a NAS (as opposed to an external drive attached to a router) and it needs to be repaired. The NAS is likely a hardware product from the likes of Netgear, Synology, Buffalo or QNap – or for those of us with a home-grown backup server running FreeNAS. The error you may see is “Time Machine completed a v
![Fix Time Machine Sparsebundle NAS Based Backup Errors | Garth Gillespie](https://cdn-ak-scissors.b.st-hatena.com/image/square/0ca0773beb58c425ef3f31b416a17ae620f3d3fa/height=288;version=1;width=512/http%3A%2F%2Fwww.garth.org%2Fwp-content%2Fuploads%2F2011%2F08%2Ftime-machine-icon-150x150.png)