Postings by Earl Ramirez

Custom ISO With Post Installation Scripts

Dear All

I have been working on a custom ISO with kickstart and a couple of post
installation scripts and would like to have the script run before the
login prompt.

The custom ISO works; however, the scripts fails because some of the
services, e.g.

CentOS 7.2 - Fast TSC calibration failed.

Dear All,

I have downloaded CentOS 7.2.1511 DVD and tried to install it on a new
laptop that comes with an Intel i7 6th generation processor and don't
matter which option I use (install, test media or troubleshooting); I get
the following error:

[ 0.000000] tsc: Fast TSC calibration failed
[ 0.321345] pnp 00:0d: can't evaluate _CRS: 1

At this time I am not able to use any keys on the keyboard; therefore, the
only option I have is to power the laptop off.

CentOS 7.2 - no GUI login after upgrade

After installing and enabling the centos-release-cr repo on my CentOS 7.1
laptop; I ran yum clean all and yum update. Yum complained about gstreamer1
dependencies that is caused by epel repo; therefore, I excluded it from the
epel repo and run yum update one more time and it went through.

After the update was completed I rebooted the laptop and I will just get
the splash screen but will never get to the actual login screen; I have
experienced this in the past from CentOS 7.0 to 7.1 upgrade and at that
time it was caused by SELinux relabeling some of the configuration files;

SIG - Hardening

Dear All,

About a week ago; I posted a proposal over on the centos-devel mailing
list, the proposal is for a SIG 'CentOS hardening', there were a few of
the members of the community who are also interested in this. Therefore,
I am extending that email to this community; where there is a larger

CentOS - SIG Hardening

Dear CentOS Development Team,

I am interested in starting a new SIG or merging with the ‘Hardening’ SIG,
I didn’t find sufficient information about the hardening SIG. I have been
on the mailing list for some years and I have noticed a number of concerns
with regards to security, e.g.

mtrr_gran_size and mtrr_chunk_size

Good Day All,

Today I looked at the dmesg log and I notice that the following messages
regarding mtrr_gran_size/mtrr_chunk_size.

I am currently running CentOS 6.3 and I installed CentOS 6.2 and 6.1 and I
was seeing the same errors.

Cannot boot into GUI after Video Driver is Installed

Good Day,

I am not 100% certain if here is the right place to bring this up, however
if this is the wrong place for this please redirect me to right place.

A few weeks ago I was trying to install KVM on my laptop, I bought a new
laptop and immediately after I install the nVidia drivers I receive the
following error "libfcoe_device_notification: NETDEV_UNREGISTER lo"

I spent several hours googling the error and there are several issues,
however none of them are related to my situation.

I am running CentOS 6.2
LSB Version:

Error connecting to KVM on CentOS 6.2

Hello List Mates,

I don't know if here is the right place for this question if it's not I
will appreciate it if you can point me to the right mailing list.

I have successfully installed KVM on my x86_64 laptop, however I am getting
the following error when I try to connect "QEMU" from the Virtual Machine

Error polling connection 'qemu:///system': internal error Cannot find
suitable emulator for x86_64

Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/", line 440, in _tick
File "/usr/share/virt-manager/virtManager/