copy and restore work fine, EXCEPT :
- if u use other filesystem than InnoDB (Mysql storing to files)
- if u change version
Also, just a tip :
it's sometimes a good idea to use --complete-insert when dumping, especially if no table drop/create. This allows to reimport data to database when table column have been added/moved
np, that was just a good idea to point out backup question and provide scripts. Thanks Gonkers

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