On 24.6.2012, at 18.57, Reinhard Vicinus wrote: > i try to migrate mails from a non dovecot imap server to a dovecot imap > server with doveadm backup as described there: > > http://wiki2.dovecot.org/Migration/Dsync > > i first tried (local-mailbox port 18143 is the non dovecot imap server): > > /usr/bin/doveadm -o imapc_user=u...@example.org -o imapc_password=imappw -o > imapc_host=local-mailbox -o imapc_features=rfc822.size -o imapc_port=18143 -o > mailbox_list_index=no -v -D backup -R -f -u u...@example.org -m Sent imapc: > > and got the following error: > > dsync(u...@example.org): Fatal: dsync backup: Looks like you're trying to run > backup in wrong direction. Source is empty and destination is not.
Strange. -R is supposed to make it copy from imapc to mdbox.. Have you tried if Dovecot can see mails at all from the remote server? Try doveadm -o mail=imapc: -o ... fetch instead of doveadm backup command. > As the dovecot imap account is newly created and therefore empty it seams to > try to backup from the dovecot imap server to the non dovecot imap server. So > i tried instead: > > /usr/bin/doveadm -o imapc_user=u...@example.org -o imapc_password=imappw -o > imapc_host=local-mailbox -o imapc_features=rfc822.size -o imapc_port=18143 -o > mailbox_list_index=no -v -D backup -f -u u...@example.org -m Sent imapc: Now this is copying from mdbox to imapc, which is also why you're getting the crash: > Sometimes (every other time?) i got the following segmentation fault: > > bt > #0 0x00007f15e2c9ed74 in strcasecmp () from /lib/libc.so.6 > #1 0x00007f15e327eaff in imapc_save_callback (reply=0x7fff56096a70, > context=<value optimized out>) at imapc-save.c:168 Note how it's saving a mail to imapc. But still, that's a bug, fixed: http://hg.dovecot.org/dovecot-2.1/rev/20703dbd1168 > dsync(u...@example.org): Warning: Destination mailbox Sent has been modified, > need to recreate it before we can continue syncing I think this is also because it's going to wrong direction. > i think the problem could be that the account name on the remote server and > the local server is absolute identical and doveadm backup has therefore > problems discerning between the two locations. But that's only a stab in the > dark and any help is appreciated. Shouldn't be a problem.
