Install software as a first thing after sanity check.
'Minimal' installations may lack basic utilities (vide: CentOS'
lack of tar, bzip2). Ensure we can install software pre-requisites
as early as possble.
Install software with apt-get only when apt-get is available.
Use yum to install software pre-requisites on respective distributions.
When disabling irqbalance, try LSB and systemd method (in addition
to upstart). Update the comment to reflect the change.
Call update-rc.d only when it's available.
Annotate disabling ondemand governor.
Rename 12.04 tweaks to general OS tweaks.
Tag sysctl modifications in block-wise fashion (# [H]ardOCP begins
and # [H]ardOCP ends) instead of line-wise. Some distributions
do not like trailing comments in sysctl configuration files.
Create fahbackup-rc that can perform fahrestore (and related actions)
on startup.