Info on backup - restore script

[docop]

Hi I would like to know how do you used the backup-restore. As : You have a prox backup and how do you restore: was it to install from iso, do not do any update and restore the backup ? Because, if any update are done.. the debian image will not be at same version and so package will not be same either...? or i see best is to install iso, never do any update.. and then a restore will be working directly.

thanks to clarify this.