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Configure a Local ISO-based Package Repository on a CentOS 7.2 VM

Consider the following scenario. You have downloaded the CentOS-7-x86_64-Everything-1511.iso from the CentOS Project or a mirror, used the ISO to create a VM in VMware Workstation, and now want to be able to access a package repository (repo) when you have no Internet access. Assume that a GNOME desktop is available on your CentOS VM and the VM is sized such that you have at least 8 Gb of free disk space. Copy the IS0 to your CentOS VM by whatever method works for you. If you have VMware Tools installed, you can just drag and drop the file using

UEFI Utility to Read TPM 1.2 PCRs

A Trusted Platform Module (TPM) supports many security functions including a number of special registers called Platform Configuration Registers (PCRs) which can hold data in a shielded location in a manner that prevents tampering or spoofing. A PCR is a 20-byte register. which incidentally is the length of a SHA-1 (Secure Hash Algorithm) hash. Most modern TPMs have 24 or even more PCRs; older ones have 16 PCRs. The TPM 1.2 specification, developed by the Trusted Computing Group (TCG) only requires 16 PCRs. Typically PCRs are used to store measurements. Measurements can be of code, data structures, configuration, information, or