content top

Changing grub2 boot options on UEFI boot system

Changing grub2 boot options on UEFI boot system On my workstation at home I have a dual boot with Red Hat Enterprise Linux 7.3 Workstation and Windows 10.  My system boots with UEFI which makes setting up dual boots such as this fairly easy.  I did want to make some changes to the default grub2 menu when my computer boots however.  First while I enjoy working with RHEL, my wife does not, so having the system boot into RHEL by default was...

Read More

Installing nVidia drivers on Fedora

nVidia and Fedora When you install a fresh copy of Fedora it will not come by default with nVidia drivers, and you need to do a few things in order to get the correct resolution on your system.  This article covers downloading the drivers, and the needed changes to get a working system. Note: This article is taken from a previous post I made on another blog a number of years back.  So the screenshots shown are from Fedora 23.  The process...

Read More

Adding CentOS Server to Satellite 6.2

Adding CentOS to Satellite 6.2 Satellite is a great product offered by Red Hat.  You can use it to provision, manage, and patch servers in your environment.  For the most part you would think you would add RHEL servers to Satellite, as that is its primary purpose. You can however add your CentOS servers to the system so that they can be monitored for needed errata, and patched.  You’ll need to setup your CentOS channels to download...

Read More

Discovering new LUNs on Linux

Discovering new LUNs on Linux

Discovering new LUNs on Linux without rebooting When you add new LUNs in VMWare to a Linux server you will not see them right away.  A reboot will solve this problem, however rebooting is not always possible.  If this is a production server, you will have to schedule the reboot, and coordinate it with the team.  This takes time.  An easy way to get around this is to do a manual rescan of the iscsi bus. Viewing what iscsi hosts are...

Read More

Expanding volumes using LVM

Expanding volumes using LVM Running out of disk space on a critical volume can be an issue.  Fortunately if you are using Logical Volume Manager (LVM) it is fairly simple to increase your available of space.  We will be using the command fdisk, pvcreate, vgextend, lvextend, and resize2fs to accomplish our goals.  All with no downtime. Preparing the disks Our first step will be providing more space to expand your LVM volume into.  This can...

Read More
content top