Bron, Thanks for the answer. A one way xfer in fine. I'm just testing the new server, and the migration process. Is the old format updated on xfer? The account I moved is working fine. Mike "Bron Gondwana" <brong@xxxxxxxxxxx> wrote: >On Fri, Oct 08, 2010 at 02:40:01PM -0400, Michael D. Sofka wrote: >> But, when I try to move it back to the 2.2.12 back-end the same error >> message. >> >> Is this a cyrus version incompatibility? That is, are the moves >> one-way, at least when using xfer? > >Gosh yes. The mailbox internal format has been upgraded. XFER is >a "dumb copy" - the files themselves are transferred across. There's >no way to downgrade a mailbox again. > >I don't think there ever will be, unless you decided that the wire >format is always the oldest possible and converted the cyrus.index >file back to that format before transfer. > >The new replication format that I've put into effect for cyrus 2.4 >could probably be used to move mailboxes to earlier versions of >Cyrus since it only transfers minimal information across the network >and forces the other end to recreate the index record - but it would >have to be backported to 2.2 and 2.3 (and installed on all your >servers) to make it work. Basically you can't retrofit forwards >compatibility to an already existing install. > >So yeah - no copy back. At least not if the cyrus.index file >format has changed. > >Bron. > -- Michael D. Sofka Sr. Systems Programmer Communications & Middleware Technologies ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
