when upgrade 2.* it would be better don't printout message:For 1.8.x to 2.0.x upgrade, the process might take a while.....

http://qa.hq.northscale.net/view/2.0.1/job/centos-64-2.0-upgrade/51/consoleFull

steps:
for example, when we upgrade node(s) from 2.0.0 to 2.0.1 we get:
[2013-01-09 04:29:36,334] - [remote_util:1109] INFO - For 1.8.x to 2.0.x upgrade, the process might take a while.
[2013-01-09 04:29:36,334] - [remote_util:1109] INFO - NOTE: all item data will be read from 1.8.x sqlite database files
[2013-01-09 04:29:36,335] - [remote_util:1109] INFO - and converted to new files in 2.0 couchstore file format. This can
[2013-01-09 04:29:36,335] - [remote_util:1109] INFO - be a lengthy, slow operation for large datasets and/or fragmented
[2013-01-09 04:29:36,335] - [remote_util:1109] INFO - database files.
[2013-01-09 04:29:36,336] - [remote_util:1109] INFO - Analysing...
[2013-01-09 04:29:36,336] - [remote_util:1109] INFO - Previous config.dat file is /opt/couchbase/var/lib/couchbase/config/config.dat
[2013-01-09 04:29:36,336] - [remote_util:1109] INFO - Target node: ns_1@10.3.3.16
[2013-01-09 04:29:36,337] - [remote_util:1109] INFO - Upgrading from 2.0

It would be better firstly identify installed version and then depending on it print out / or not such notification if possible