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Error

This covers topics and articles related to troubleshooting error messages from Linux environment..

Solved: lvextend new size given (xx extents) not larger than existing size (xx extents)

Solved: lvextend new size given (xx extents) not larger than existing size (xx extents)

The other day while trying to recover my LVM2 volume, I was doing some POC work and while using lvextend I encountered this error "New size given (XXX extents) not larger than existing size (XXX ...

Read MoreSolved: lvextend new size given (xx extents) not larger than existing size (xx extents)

Categories Tips and Tricks, Error Tags LVM 2 Comments

How to fix "pvs shows unknown device" in RHEL/CentOS 7/8

How to fix "pvs shows unknown device" in RHEL/CentOS 7/8

remove a physical volume listed as an unknown device. pvs shows unknown device in redhat. pvs couldn't find device with uuid. unknown linux device mapper. device for pv not found or rejected by a filter. ...

Read MoreHow to fix "pvs shows unknown device" in RHEL/CentOS 7/8

Categories LUKS, Error, Linux Tags LUKS, LVM, storage 5 Comments

How to install multi node openstack on virtualbox with packstack on CentOS 7

install multi node openstack on viirtualbox using centos7

In this article I will share the steps to install multi node OpenStack on VirtualBox using CentOS 7 Linux. Packstack is used to perform multi node OpenStack deployment mostly for POC purpose as it does ...

Read MoreHow to install multi node openstack on virtualbox with packstack on CentOS 7

Categories DevOPs, Error, Linux Tags devops, openstack, packstack 15 Comments

Guide to troubleshoot Cluster Resource (RHEL / CentOS 7)

common golinuxcloud

Before you start learning to troubleshoot cluster resource related topics in cluster, you must be familiar with Cluster Architecture. In my last article I had shared the steps to configure HA Cluster and create a ...

Read MoreGuide to troubleshoot Cluster Resource (RHEL / CentOS 7)

Categories Tips and Tricks, Error, Linux Tags cluster, pacemaker Leave a comment

Solved: ironic node-delete is associated with instance

common golinuxcloud

You may get this error "ironic node-delete is associated with instance" while trying to delete an ironic node which has an active instance. This means that your overcloud deployment is either partially complete or successfully complete ...

Read MoreSolved: ironic node-delete is associated with instance

Categories Openstack, Error Tags openstack Leave a comment

How to troubleshoot OpenStack ironic introspection

common golinuxcloud

I have already written an article to fix "No Valid Host Was Found. Not Enough Hosts Available" which is one of most common problem seen during overcloud deployment. The discovery and introspection process must run ...

Read MoreHow to troubleshoot OpenStack ironic introspection

Categories Openstack, Error, Tips and Tricks Tags devops, openstack 3 Comments

Solved: vncserver service failed a configured resource limit was exceeded

common golinuxcloud

In my last article I shared the step by step guide to tigervnc server on RHEL 7 Linux. Now let me help you troubleshoot one of the most common issue with tigervnc service. I got ...

Read MoreSolved: vncserver service failed a configured resource limit was exceeded

Categories Error, How To, Linux Tags tigervnc, Tips and Tricks, vncserver 4 Comments

Solved "No valid host was found. not enough hosts available"

common golinuxcloud

I got this error while performing my Overcloud deployment using TripleO. During my trial run of Openstack configuration I got this error message "No valid host was found. There are not enough hosts available" which ...

Read MoreSolved "No valid host was found. not enough hosts available"

Categories Openstack, Error, Tips and Tricks Tags openstack 5 Comments

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Also Read

  • Solved: lvextend new size given (xx extents) not larger than existing size (xx extents)
  • How to fix "pvs shows unknown device" in RHEL/CentOS 7/8
  • How to install multi node openstack on virtualbox with packstack on CentOS 7
  • Guide to troubleshoot Cluster Resource (RHEL / CentOS 7)
  • Solved: ironic node-delete is associated with instance
  • How to troubleshoot OpenStack ironic introspection
  • Solved: vncserver service failed a configured resource limit was exceeded
  • Solved "No valid host was found. not enough hosts available"

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