runuser: user cloudera-scm does not exist

I'm trying to install Cloudera Manager 4.1 in an official Cloudera 4.1 VM I
got from Cloudera's website, using CentOS.

I downloaded the binary installer, it fails by putting the following into a
log file:

runuser: user cloudera-scm does not exist

I'm running the installer as root. I also tried creating a cloudera-scm
user by hand, didn't help.