dracut host-only

If you want to create lighter, smaller initramfs images, you may want to specify the –hostonly or -H option.

Using this option, the resulting image will contain only those dracut modules, kernel modules and filesystems, which are needed to boot this specific machine. This has the drawback, that you can’t put the disk on another controller or machine, and that you can’t switch to another root filesystem, without recreating the initramfs
image.

Note
On RHEL-7 the hostonly mode is the default mode. Generic “non-hostonly” images are created, if the dracut-config-generic rpm is installed. The rescue kernel entry in the bootloader menu is also a generic
image.

-N, –no-hostonly
Disable Host-Only mode

rngd service fail

by default, centos 7 enables rngd.service, but it is configured for trust module or just plain misconfigured.

Solution:

http://web.theurbanpenguin.com/centos-7-rngd-will-not-start/

We can easily rectify the problem by editing the service  unit file: /usr/lib/systemd/system/rngd.service. The ExecStart line should be edited so that it reads as in the following:

ExecStart=/sbin/rngd -f -r /dev/urandom

This is also shown in the following screenshot:

rndgservice

We will need to reload the unit file once it has been edited. We can use the following command to achieve this:

# systemctl daemon-reload

With the new unit loaded we can now start the service and check the status:

# systemctl start rngd
# systemctl status rngd

The following video will step you through the process.

New Build Packages

system-config-lvm

dump

gsmartcontrol

pv

pigz

pbzip2

tree

dconf-editor

telnet

hdparm

virt-manager

fuse-sshfs

cups-pdf

flash-plugin

wipe

vim-X11

java-1.7.0-openjdk-devel

java-1.8.0-openjdk-devel

icedtea-web-javadoc

java-1.8.0-openjdk-javadoc

java-1.7.0-openjdk-javadoc

google-chrome-stable

google-talkplugin

system-storage-manager

iotop

wdiff

youtube-dl

nmap

ftp

lshw-gui

whois

qbittorrent

ftop

tracker-preferences

nethogs

gnote

gnome-shell-browser-plugin

alacarte

NUX

gstreamer-plugins-bad

gstreamer-plugins-ugly

gstreamer-ffmpeg

gstreamer1-plugins-bad-freeworld

paprefs

gnome shell browser integration

Firefox

yum install gnome-shell-browser

This shows up on about:addons as “Gnome Shell Integration”

There may also be an extension, by the same name. It needs to be disabled/removed

Going to https://extensions.gnome.org without this setup correctly will display a message about not being able to connect to a disconnected port OR there will be an invitation to “install an integration package”.

Selecting the integration package installs the rpm listed above AND also the “Gnome Shell Integration”  extension which then needs to be removed or disabled.