On 03/11/2022 11:27 EET Ralf Becker rb@egroupware.org wrote:
Hi Aki,
Am 03.11.22 um 09:12 schrieb Aki Tuomi:
On 03/11/2022 10:09 EET Ralf Becker rb@egroupware.org wrote:
Hi Aki,
Am 03.11.22 um 08:50 schrieb Aki Tuomi:
On 03/11/2022 09:46 EET Ralf Becker rb@egroupware.org wrote:
I'm trying to migrate an old Cyrus 2.5 server to Dovecot 2.3.19 using doveadm backup -R, which works for all folders but the INBOX itself, which always stays empty.
The Cyrus side uses altnamespace:no and unixhierarchysep:no, it's used as imapc: remote in doveadm backup -R with imapc_list_prefix=INBOX
Dovecot uses the following namespace to migrate into:
namespace inboxes { inbox = yes location = mailbox Sent { auto = subscribe special_use = \Sent } ### some more folders omitted ### prefix = INBOX/ separator = / subscriptions = no } Hi!
When syncing mailboxes from other server, you should use migration config file, which has **no** auto=subscribe or auto=create folders, as these can mess up with synchronization.
Please see https://doc.dovecot.org/admin_manual/migrating_mailboxes/ for more details. Does a migration config file specified with doveadm -c <file> add to and overwrite the existing Dovecot configuration for the time the command runs, like the -o options, or do I need to start a separate server with a full configuration to e.g. have my authentication and mailbox location available?
Ralf
It does not add/replace/overwrite configuration, you provide a fresh config file which is used *instead of* the default dovecot.conf.
You don't need to run a separate instance necessarely, although in some larger migrations this has been used as well.
I created now a separate instance with a modified configuration file with no auto=subscribe (or create), no replication and an empty storage. doveadm config -n is attached.
Unfortunately the result is identical to my previous tries:
doveadm -o namespace/subs/location=mbox:/var/dovecot/subs -o imapc_user='someuser' -o imapc_password='secret' -D backup -n INBOX/ -R -u someuser@somedomain imapc: 2>&1 | tee /tmp/doveadm-backup.log
Nov 03 09:06:35 dsync(someuser@somedomain): Warning: Mailbox changes caused a desync. You may want to run dsync again: Remote lost mailbox GUID c92f64f79f0d1ed01e6d5b314f04886c (maybe it was just deleted?)
doveadm mailbox status -u someuser@somedomain all INBOX INBOX messages=0 recent=0 uidnext=1 uidvalidity=1577952633 unseen=0 highestmodseq=1 vsize=0 guid=c92f64f79f0d1ed01e6d5b314f04886c firstsaved=never
Any ideas what else to try or how to debug that further?
I can send you the full log to your personal address, if that helps ...
Ralf
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You should rm -rf the target folder first. Can you attach doveadm -D backup logs? Check that it won't contain passwords.
Aki