Logical Volume Snapshots Objective: Creating and restoring manual logical volume snapshots. Environment: CentOS release 6.3 (32-bit). Descriptions: By LV snapshot you will be able to freeze your logical volumes. In other words, you can easily backup and rollback to a original logical volume state. This is almost similar to VMware where you can the snap […]
|
||||||
|
ISO – Mount/Unmount Objective: 1. Mount the ISO to CD/DVD, then mount it to file system. 2. Create an ISO from the CD/DVD, then mount to file system. 3. Created ISO will be mounted, and will be mounted as an file system. Environment: CentOS release 6.3 (32-bit). Implementations: – Mounted my ISO image to CD/DVD, […] Once after your installation is completed, you will not be able to login directly to the console as the user “root”. user root should be assigned role as a normal user. Below are the very few steps to enable root login. 1. #vim /etc/ssh/sshd_config [ change parameter to yes ] PermitRootLogin yes 2. #vim /etc/default/login […] Kernel Crash Report/Crash Dump Analysis In my previous post, we have configured how to capture kernel dump for reference click on the link kernel crash dump Here in this article,we master the basic usage of crash utility to open the dumped memory core and process the information contained therein and to intercept the output. […] When you boot a Centos server, it defaults to showing a splash screen when booting. You can press escape to switch to a more verbose boot mode. This article describes how to set verbose as the default boot mode. Booting Centos in verbose mode Login as the root user en edit the Grub menu. […] We had few of the servers which was similar in file systems, disk partitions, applications, etc .., but was exception in only Volume Group(VG). So I had cloned the systems and thought of renaming the VG, but since root Logical Volume(LV) was configured on the same VG was unable to un-mount online. I had to […] |
||||||
|
Copyright © 2025 - All Rights Reserved Powered by WordPress & Atahualpa |
||||||
Recent Comments