How to extend space for a OCP /sysroot mounted for /

Cloud & Containerization, LinuxOpenShift

The current disk size is 64 GB and disk was extended from VMware end, Now time to extend from RedHat OpenShift side. We are getting below package from the app-stream repository rhel-8-for-x86_64-appstream-rpms, make sure to install it. Grow the partition by running growpart command. Run from privileged user. $ sudo su – Run program with ... Read More

Creating Podman container systemd unit files for rootless containers

Cloud & Containerizationpodman

By default Docker or Podman doesn’t have any systemd unit to start the container during a reboot. Let’s see how to create a systemd unit file for a rootless container and manage how to start, stop, restart and check the status of the container. For reference, container name and application user used in this guide. ... Read More

LEAPP Upgrade failed with more space needed on the / filesystem

TroubleshootingOS Upgrade

LEAPP Upgrade from RHEL 7 to 8 fails for lack of space, The actual error while performing a LEAPP upgrade. Just we need to increase the size of OVAL Size using variable. This resolves the LEAPP upgrade error which need more space.

Installing Ansible on Rocky Linux 8.x

AutomationAnsible

Introduction A step-by-step installation and configuration of Ansible on Rocky Linux. Numerous guides are available over the internet, however, installing on a Basic server will confuse some newbies. Hope this guide will help someone and save their day. The Base OS we are about to use in this guide is Installing Ansible And a few ... Read More

Podman cheat Sheet

Cloud & ContainerizationContainer

A handy Podman cheat sheet, documenting for self reference. Basic Podman Options To check the current installed version of podman. Print everything about podman in this server. The long output has been truncated. If we need to know podman disk usage Searching for a Image Looking for a container image using name. Searching for container ... Read More

How to up and run Qemu on macOS Monterey

MacOSMacOS

Most of the MacBook users may looking to run QEMU to launch Linux Virtual machines, this short guide may help to accomplish the same. Run all below commands as a normal user, install the qemu package. We can check the installed version by running below command. Create a directory wherever convenient I have planned to ... Read More

Installing pgBackRest from official PostgreSQL Repository

Database ServersPostgresSQL

If you are looking to get the pgbackrest package from official repo of pg website, it can be get from the pgdg common repository. Create the repo file under /etc/yum.repos.d/ Append with the repository information Search for the package and get more info about it. In case if the server in an isolated environment below ... Read More

Solution for client_loop: send disconnect: Broken pipe

SecuritySELinux

Introduction While trying to SSH we may get this error “client_loop: send disconnect: Broken pipe”. The reason behind the cause is, a normal user added with a SELinux user should be allowed to do SSH by enabling 1 for ssh_sysadm_login Checking logs Let’s check the logs, we could get something. We get to know it’s ... Read More

Upgrade RHEL 7 to RHEL 8 from RedHat Satellite Server | LEAPP Upgrade

Linux AdministrationOS Upgrade

Perform a major release version upgrade for Red Hat Enterprise Linux server from a Red Hat satellite server.

Auto mount LUKS Encrypted file system with Network-Bound Disk Encryption NBDE

SecurityLinux filesystem encryption

Auto mount a encrypted file system using Network bound disk encryption NBDE.

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