cyrus-imapd not starting after upgrade

[Daniel Bareiro]

Hi all!

After quite some time, today I decided to update the mail server from
Debian Jessie (cyrus-imapd 2.4.17) to Debian Stretch (cyrus-imapd 2.5.10-3).

All without problems until I reach the part of cyrus-imapd that does not
start. This is what I see in the log:

----------
Jan 14 23:10:45 mail systemd[1]: Started Cyrus IMAP/POP3 daemons.
Jan 14 23:10:45 mail cyrus/ctl_cyrusdb[5318]: skiplist: clean shutdown
file missing, updating recovery stamp
Jan 14 23:10:45 mail cyrus/ctl_cyrusdb[5318]: recovering cyrus databases
Jan 14 23:10:45 mail cyrus/ctl_cyrusdb[5318]: done recovering cyrus
databases
Jan 14 23:10:46 mail cyrus/cyr_expire[5332]: Repacking mailbox
user.admin.TareasCron version 12
Jan 14 23:10:46 mail cyrus/cyr_expire[5332]: Expired 0 and expunged 0
out of 28809 messages from 80 mailboxes
Jan 14 23:10:46 mail cyrus/cyr_expire[5332]: duplicate_prune: pruning
back 3.00 days
Jan 14 23:10:46 mail cyrus/cyr_expire[5332]: duplicate_prune: purged 0
out of 438 entries
Jan 14 23:10:46 mail cyrus/tls_prune[5335]: twoskip: invalid magic
header: /var/lib/cyrus/tls_sessions.db
Jan 14 23:10:46 mail cyrus/tls_prune[5335]: cyrusdb: opening
/var/lib/cyrus/tls_sessions.db with backend skiplist (requested twoskip)
Jan 14 23:10:46 mail cyrus/tls_prune[5335]: skiplist: recovered
/var/lib/cyrus/tls_sessions.db (223 records, 41200 bytes) in 0 seconds
Jan 14 23:10:46 mail cyrus/tls_prune[5335]: skiplist: checkpointed
/var/lib/cyrus/tls_sessions.db (223 records, 41200 bytes) in 0.091 sec
Jan 14 23:10:46 mail cyrus/tls_prune[5335]: tls_prune: purged 2 out of
223 entries
Jan 14 23:10:46 mail cyrus/master[5311]: cannot find executable for
service 'nntp'
Jan 14 23:10:46 mail cyrus/master[5311]: exiting
Jan 14 23:10:46 mail systemd[1]: cyrus-imapd.service: Main process
exited, code=exited, status=78/n/a
Jan 14 23:10:46 mail systemd[1]: cyrus-imapd.service: Unit entered
failed state.
Jan 14 23:10:46 mail systemd[1]: cyrus-imapd.service: Failed with result
'exit-code'.
----------

I'm not sure what the problem is but that "invalid magic header" makes
me think that maybe it changed the header format of
/var/lib/cyrus/tls_sessions.db and the migration process did not do the
corresponding conversion. Can that be the reason why it doesn't start or
I'm missing something else? Any ideas that can bring more light?

The associated problem is that because of this it seems that Postfix can
not deliver the mails since there is no /var/run/cyrus/socket/lmtp.


Thanks in advance.

Kind regards,
Daniel