"rsync --delete" won't delete certain files

[Peter Daum]

Peter Daum wrote:
> - The problem only occurs when there is more than 1 file system to
>   sync. When I only backup "/", everything is fine, when I add another
>   source file system, nothing below "/var" will be deleted (I still don't
>   have a clue, why this occurs on "/var" but not on other paths)


... a little detail, that I forgot to explicitly mention:
the other options used include of course "--one-file-system";
I need a full backup and find it very error-prone to specify all exceptions
(like /proc /sys the directory where the backup disk is mounted ...) with
"--exclude"