I have a redis server 2.8 installed using ubuntu apt-get on ubuntu 12.04.
I have copied a dump.rdb from an other database. Now when I try to start the new server, I
No one hasn't mentioned about SELinux. On Centos most probably you will have such error when selinux mode = enforcing.
Just check getenforce and if it set to 'enforcing' , hit setenforce 0 and try one more time to run service.
getenforce
setenforce 0