The sysinfo.config file stores the server’s system information settings. cPanel & WHM uses this file to determine which RPMs to download during installation and upgrades. Sometimes when compiling it can happen that it shows:
checking build system type… x86_64-unknown-linux-gnu
checking host system type… x86_64-unknown-linux-gnu
checking target system type… x86_64-unknown-linux-gnu
…
Platform: x86_64-unknown-linux-gnu
+-(~)->cat /etc/redhat-release CentOS release 6.7 (Final)
+-(~)->cat /var/cpanel/sysinfo.config ises=2 lock= release=6.7 rpm_arch= rpm_dist=centos rpm_dist_ver=unknown