Welcome to the CentOS fora. Please see the recommended reading for new users linked in my signature.
I never heard of Solaris BrandZ
before, but the web page states:
Linux Zones on Solaris
The lx brand enables Linux binary applications to run unmodified on Solaris, within zones running a complete Linux userspace. The combination of BrandZ and the lx brand will be productized as Solaris Containers for Linux Applications.
The lx brand is not a Linux distribution and does not contain any Linux software at all. The lx brand enables user-level Linux software to run on a machine with a Solaris kernel, and includes the tools necessary to install a CentOS or Red Hat Enterprise Linux distribution inside a zone on a Solaris system.
The lx brand will run on x86/x64 systems booted with either a 32-bit or 64-bit kernel. Regardless of the underlying kernel, only 32-bit Linux applications are able to run.
Apparently only a subset of CentOS is expected to work, so problems are not surprising with this experimental environment
. The issues you are experiencing seem pretty certain to be Solaris BrandZ issues and not CentOS problems per se
. I doubt much help can be found here.