cyrus setup

[Kevin Robert Casey]

i'm trying to setup cyrus (imap & sasl) version 2.1.12 with postfix 2.0.3
and mysql support.  i'm trying to setup virtual e-mail hosting with imap
access, but am not having any luck.  i /think/ my problem is with sasl, but
i don't know if something might be causing it.

if this is off topic, could you please point me in the general direction?
i've searched the web, but the best i could find was somebody saying they
had the problem but found the answer elsewhere.  i didn't know what to
include (because i'm not sure what the problem is), so let me know what you
need to help.

when i try to start cyrus at the command line with:
krc at ns1:~> sudo /etc/init.d/cyrus start

it tells me:
krc at ns1:~> saslauthd: unknown authentication mechanism: pam

and my system log does something like this:
Mar  4 16:19:29 ns1 sudo:      krc : TTY=pts/1 ; PWD=/home/krc ; USER=root ;
COMMAND=/etc/init.d/cyrus start
Mar  4 16:19:29 ns1 master[1176]: setrlimit: Unable to set file descriptors
limit to -1: Operation not permitted
Mar  4 16:19:29 ns1 master[1176]: retrying with 1024 (current max)
Mar  4 16:19:29 ns1 saslauthd[1175]: START: saslauthd 2.1.12
Mar  4 16:19:29 ns1 saslauthd[1175]: FATAL: unknown authentication
mechanism: pam
Mar  4 16:19:30 ns1 master[1176]: process started
Mar  4 16:19:30 ns1 master[1177]: about to exec /usr/cyrus/bin/ctl_cyrusdb
Mar  4 16:19:30 ns1 ctl_cyrusdb[1177]: recovering cyrus databases
Mar  4 16:19:31 ns1 ctl_cyrusdb[1177]: done recovering cyrus databases
Mar  4 16:19:31 ns1 master[1176]: ready for work
Mar  4 16:19:31 ns1 master[1178]: about to exec /usr/cyrus/bin/tls_prune
Mar  4 16:19:31 ns1 master[1179]: about to exec /usr/cyrus/bin/ctl_deliver
Mar  4 16:19:31 ns1 master[1180]: about to exec /usr/cyrus/bin/ctl_cyrusdb
Mar  4 16:19:31 ns1 ctl_deliver[1179]: DBERROR db4: 4 lockers
Mar  4 16:19:31 ns1 ctl_deliver[1179]: duplicate_prune: pruning back 3 days
Mar  4 16:19:31 ns1 ctl_deliver[1179]: duplicate_prune: purged 0 out of 0
entries
Mar  4 16:19:31 ns1 ctl_cyrusdb[1180]: checkpointing cyrus databases
Mar  4 16:19:31 ns1 master[1176]: process 1179 exited, status 0
Mar  4 16:19:31 ns1 tls_prune[1178]: tls_prune: purged 0 out of 0 entries
Mar  4 16:19:31 ns1 master[1176]: process 1178 exited, status 0
Mar  4 16:19:31 ns1 ctl_cyrusdb[1180]: archiving database file:
/var/imap/mailboxes.db
Mar  4 16:19:31 ns1 ctl_cyrusdb[1180]: archiving log file:
/var/imap/db/log.0000000001
Mar  4 16:19:31 ns1 ctl_cyrusdb[1180]: archiving log file:
/var/imap/db/log.0000000001
Mar  4 16:19:31 ns1 ctl_cyrusdb[1180]: done checkpointing cyrus databases
Mar  4 16:19:31 ns1 master[1176]: process 1180 exited, status 0

thanks in advance,
kevin