An easy step by step guide to shrink XFS partition on a logical volume by taking an xfsdump and restore using xfsrestore.
Storage Servers
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Resize root LVM Partition in RHEL and Oracle Linux 7/8 | Easy guide
A quick guide to Resize Root LVM partition on any RHEL based operating systems such as CentOS, Oracle Linux, Scientific Linux and much more.
Storage Servers
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Recover a failed or deleted Physical Volume (PV) in LVM | 1 Easy guide
A quick guide to recover the metadata of a failed physical disk or deleted physical volume in logical volume management.
Storage Servers
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Recover a deleted Logical Volume in LVM | 1 Quick guide
A quick guide about restoring a deleted logical volume in Linux operating system. vgcfgrestore a single command is more than enough to restore the LV.
Troubleshooting
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Change default kernel to boot in RHEL 8 | Easy guide
A how-to guide to Set the default kernel in RHEL based operating system. This may be required when we are installed with multiple kernel versions in our Linux servers.
Troubleshooting
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grub2-editenv: error: environment block too small | Simple Solution
A quick guide to resolve the “grub2-editenv: error: environment block too small” error when the grubenv file size exceeds the expected 1024 bytes.
Virtualization
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Adding USB Network Adapter to VMware ESXi 7.0 | Easy Guide
Quick and easy guide to add a USB Network Adapter in VMWare ESXi 7.0 servers by installing its driver and making the changes persistent.
System Management
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Foreman Upgrade with Katello in 3 easy steps
Upgrade foreman version in three steps or resolve the HTTP error (500 – Internal Server Error): Unable to register system, not all services available by following this simple quick guide.
Cloud & Containerization
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Kubernetes metrics | Error from server (ServiceUnavailable) | Quick 2 fixes
A quick fix for the Kubernetes Metrics (service unavailable) and metric showing as (unknown) for Worker nodes.
Automation
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Configure a PXE Boot Server with Kickstart on CentOS 8 – Easy guide
This guide will help to up and run with a PXE Boot Server or Network Boot installation in a short time span. Instead of performing step by step install, we will use a kickstart file to automate the process.