how to convert db4 mailboxes.db to db3 ?

[Christian Schulte]

sandra wrote:

>Patrick,
>
>
>   I have tried to do the conversion from db4 to skiplist for the
>cyrus-imap
>compiled with db4, but, there is a error message:
>
>
># ./cvt_cyrusdb mailboxes.db db4 mailboxes.skiplist skilist
>fatal error: unknown old backend
>Why doesnt it recognize db4? I have to compile with some other parameter,
>like
>--with-mboxlist-db=db4 ?
>
>Thanks
>
>Sandra
>  
>
I think you will need two versions of cvt_cyrusdb! One linked with db4 
to do the conversion from db4 to skiplist and another binary linked 
against db3 with which to convert from skiplist back to berkeley.

--Christian