Package: msr-tools

"msr-tools" package binaries on CentOS:

/usr/sbin/msr-cpuid /usr/sbin/rdmsr /usr/sbin/wrmsr

You may install this package on CentOS with yum install msr-tools

"msr-tools" package binaries on Debian:

/usr/sbin/rdmsr /usr/sbin/wrmsr

You may install this package on Debian with apt-get install msr-tools