BUG #5082: I can't get logfile( achive )

The following bug has been logged online:

Bug reference: 5082
Logged by: smuffy
Email address: vday1945(at)gmail(dot)com
PostgreSQL version: 8.4.0
Operating system: opensuse 10.2
Description: I can't get logfile( achive )
Details:

hello.

My DB can't make a logfile( archive ).
But archive_mode is on.(postgresql.conf)
How I get a logfile?
help me, please.

#---------------------------------------------------------------------------
---
# WRITE AHEAD LOG
#---------------------------------------------------------------------------
---

# - Settings -

#fsync = on # turns forced synchronization on or
off
#synchronous_commit = on # immediate fsync at commit
#wal_sync_method = fsync # the default is the first option
# supported by the operating
system:
# open_datasync
# fdatasync
# fsync
# fsync_writethrough
# open_sync
#full_page_writes = on # recover from partial page writes
#wal_buffers = 64kB # min 32kB
# (change requires restart)
#wal_writer_delay = 200ms # 1-10000 milliseconds

#commit_delay = 0 # range 0-100000, in microseconds
#commit_siblings = 5 # range 1-1000

# - Checkpoints -

#checkpoint_segments = 3 # in logfile segments, min 1, 16MB
each
#checkpoint_timeout = 5min # range 30s-1h
#checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 -
1.0
#checkpoint_warning = 30s # 0 disables

# - Archiving -

archive_mode = on # allows archiving to be done
# (change requires restart)
#archive_command = '' # command to use to archive a logfile
segment
archive_command = '/bin/cp -i %p /data/postgres/log/archive/%f'
#archive_timeout = 0 # force a logfile segment switch after this
# number of seconds; 0 disables