OSM server can be installed on centOS?

I am planning to setup rails server. Can we install on CentOS? or Just on Ubuntu.

Some one suggested this link for my purpose.

http://wiki.openstreetmap.org/wiki/The_Rails_Port

But i found another wiki link which shows CentOS is supported.

https://github.com/openstreetmap/Nominatim/blob/master/docs/Installation.md

Well Nominatim != the Rails Port. Nominatim is a name search mechanism for OSM; the rails port is what you’d set up if you wanted to create “your own OpenStreetMap server” - to create a parallel set of OSM data.

Perhaps you could expand a bit on what you’re trying to do?

we are building our own railsport server, instead of using it in cloud. We are downloading North American maps, it is taking very long time. Is it common? Indexing of the stages of the map is taking very long time. Stage 17, it took 6 days to complete. Now we are not Stage 26, which is going to take 60 days or so. Did anyone notice the same?

It’s not possible to answer “is it normal to take X time to do something” questions without some idea of what you’re doing and what hardware you are trying to do it with.