High level overview The high level steps are as follows 1. VMWare – extend filesystem 2. fdisk -l – check sizes before rescans 3. To scan an existing device: a. echo 1 > /sys/block/{device}/device/rescan 4. To scan for a new device a. echo "- - -"…
Here's a guide outlining how to perform hardware RAID actions (e.g. wipe the RAID configuration, create a new RAID-1 virtual disk etc) on a Dell PowerEdge server (Perc i810) during a CentOS kickstart installation. For this example we are building this for CentOS 7.2, however the…
It appears that when using pulp (http://www.pulpproject.org/) to synchronise and manage yum repositories, pulp categorises a repository with the following in mind * OS Major Release Number (E.g. CentOS 7) * OS Minor Release number (e.g. CentOS 7.2) * These are stored under the release number, e.…
Useful rpm commands rpm -qa | grep [string] Will show if the RPM you specify (in the string) is installed rpm -qf [/path/somefile] will show which package provides the specified file rpm -ql [packagename] will show all files contained in the installed package specified rpm -qlp [package.rpm] will list…
Simple example of replacement of a password field in /etc/shadow. usern=robbie encpass= :$1$CQoPk7Zh$370xDLmeGD9m4aF/ciIlC sed -i "s/^${usern}\:[^\:]\{1,100\}\:/${usern}\:${encpass}\:/" /etc/shadow Probably some more improvements here (e.g. determine maximum hashed password string length rather than "up to 100"…