Time Machine does a full backup after a full restore

Hi,
To test Time Machine (as you should always do with any backup system) I decided to do a full restore of one of my Macs. This went fine (after figuring out how to mount my remote backup disk).
However I noticed that when the restored machine did its first scheduled Time Machine backup after being restored it did what pretty much amounted to a full backup (taking ages).
I believe Time Machine should be clever enough to know that the restored files are the same as the backed up ones, and there is no need to copy new versions.
Cheers, Ed.

Indeed not unexpected, however it would be easy to fix this in the future by linking the restore into the existing baseline (given that it is a direct copy of it) as it writes the files.
It is worth mentioning because if you have a smallish backup disk (I don't) then writing the second baseline may flush out a number of your older weekly backups that you would rather have retained. It will also eventually mean that you will always have those two baselines and therefore restrict the number of valid backups that you can keep.
Cheers, Ed.

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    felciano wrote:
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    Thanks Linc.
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