Moving from Linux to Linux?

Hi,

we are considering changing the PostgreSQL platform from SUSE SLE to Red Hat. To keep service interruptions as short as
possible,the idea is to set up a streaming replication from the SUSE server to be replaced to a temporary Red Hat
serverand then replace that SUSE server with the newly setup Red Hat server. 

My idea is to set up a streaming replication for this. But this of course only works if the data files would be binary
compatible.

So, I wonder, if this is possible. We have a lot of databases, some of them need to be highly available and some are
largetoo. 

Are there any obstacles that definitely make that a no-go? Do I risk corruption? It's both Linux, just a different
distribution.

Cheers,
Paul