• Home
  • Archive
  • Tools
  • Contact Us

The Customize Windows

Technology Journal

  • Cloud Computing
  • Computer
  • Digital Photography
  • Windows 7
  • Archive
  • Cloud Computing
  • Virtualization
  • Computer and Internet
  • Digital Photography
  • Android
  • Sysadmin
  • Electronics
  • Big Data
  • Virtualization
  • Downloads
  • Web Development
  • Apple
  • Android
Advertisement
You are here: Home » Steps For OpenStack Nova Instance RESCUE (HP Cloud)

By Abhishek Ghosh April 9, 2015 8:23 pm Updated on April 9, 2015

Steps For OpenStack Nova Instance RESCUE (HP Cloud)

Advertisement

Who Installed the OpenStack Matters, But Here is Somewhat Generalized Guide to Evoke the Rescue Mode on Linux Instance via Python Nova Client. Rackspace, for example runs OpenStack but they have their own web GUI based method to bring the Rescue mode. This guide to OpenStack Nova instance rescue will work for your own OpenStack installation as well as on HP Cloud.

 

Steps For OpenStack Nova Instance RESCUE (HP Cloud) : Install Python Client Tools

 

OpenStack Python Nova Client must be installed. OPENSTACKRC file must be copied in the active profile file (.zshrc in case of Homebrew – iTerm2 – ZSH setup).

 

Steps For OpenStack Nova Instance RESCUE (HP Cloud)

 

Run :

Advertisement

---

Vim
1
nova help rescue

on local computer’s Terminal/iTerm2 window to get command line help :

Steps For OpenStack Nova Instance RESCUE (HP Cloud)

Then you can run nova list command to get the instance name or ID of the server. The command format will be :

Vim
1
nova rescue serverID

Original instance will loaded into the rescue instance under /dev/vdb for HP Cloud. Before you access the information you will need to mount /dev/vdb :

Vim
1
2
sudo mkdir /example/
sudo mount /dev/vdb1 /example

Before mounting, you possibly want to run the fdisk -l command. You will get a thing like this :

Vim
1
Disk /dev/vdb1: 2147 MB

This is the rescue mode filesystem. Other one will be bigger in GB – that is the server’s file system. We can now access the files through the /example directory. Just remember that you will need to put “/example” or what you will use as name in front of the usual paths to get to the files. For example, if you have a problem in the /etc/hosts file, you will actually access that file at:

Vim
1
/example/etc/hosts

If you chowned the file wrongly from root, then root will be at /example/. It s honestly not possible to predict what error you did and what steps you should do to undo.

You can get rid off rescue mode by this command from local host :

Vim
1
nova unrescue serverID

It is always better to take a snapshot before any work. If simple apt-get upgrade breaks the system, it is very difficult to roll back or undo without snapshot.

Tagged With hp nova , nova rescue openstack , openstack havana nova rescue , openstack server rescue , rescue steps for instances openstack

This Article Has Been Shared 663 Times!

Facebook Twitter Pinterest
Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

Here’s what we’ve got for you which might like :

Articles Related to Steps For OpenStack Nova Instance RESCUE (HP Cloud)

  • Software Maintenance in Cloud Computing

    Software Maintenance is a factor of thought, be it a simple CMS or the Core Software. How easy or hard the Software Maintenance part in Cloud Computing ?

  • Cloud Computing Projects : Free and Paid Trials

    Cloud Computing Projects from our partners for testing and standardizing some high end Cloud as a Service products for users to test before any commitment.

  • Google F1 : Distributed RDBMS replacement for MySQL

    Google F1, The Fault-Tolerant Distributed RDBMS is targated to be replacement for MySQL. This claimed to be perform better like serving Ads from crap servers.

  • Cloud Computing Benefits for Small Business

    Cloud Computing Benefits for Small Business are not that focused than the providers do to show advantages for the Enterprises. Strategy can make ROI more.

  • Creating DNS Record for Rackspace Cloud Servers

    Creating DNS Record for Rackspace Cloud Servers is an addition to our guide to install WordPress on Rackspace Servers as some users are unable to find the way.

Additionally, performing a search on this website can help you. Also, we have YouTube Videos.

Take The Conversation Further ...

We'd love to know your thoughts on this article.
Meet the Author over on Twitter to join the conversation right now!

If you want to Advertise on our Article or want a Sponsored Article, you are invited to Contact us.

Contact Us

Subscribe To Our Free Newsletter

Get new posts by email:

Please Confirm the Subscription When Approval Email Will Arrive in Your Email Inbox as Second Step.

Search this website…

 

Popular Articles

Our Homepage is best place to find popular articles!

Here Are Some Good to Read Articles :

  • Cloud Computing Service Models
  • What is Cloud Computing?
  • Cloud Computing and Social Networks in Mobile Space
  • ARM Processor Architecture
  • What Camera Mode to Choose
  • Indispensable MySQL queries for custom fields in WordPress
  • Windows 7 Speech Recognition Scripting Related Tutorials

Social Networks

  • Pinterest (22.1K Followers)
  • Twitter (5.8k Followers)
  • Facebook (5.7k Followers)
  • LinkedIn (3.7k Followers)
  • YouTube (1.3k Followers)
  • GitHub (Repository)
  • GitHub (Gists)
Looking to publish sponsored article on our website?

Contact us

Recent Posts

  • Big Data in Sports May 20, 2022
  • FaaS Versus PaaS Deployment: What You Should Know May 18, 2022
  • What Is A Digital Media Consultancy? May 17, 2022
  • How Artificial Intelligence (AI) Is Changing The Way We Play Bingo May 16, 2022
  • Why You Need A Big Data Consultant May 15, 2022

About This Article

Cite this article as: Abhishek Ghosh, "Steps For OpenStack Nova Instance RESCUE (HP Cloud)," in The Customize Windows, April 9, 2015, May 20, 2022, https://thecustomizewindows.com/2015/04/steps-for-openstack-nova-instance-rescue-hp-cloud/.

Source:The Customize Windows, JiMA.in

This website uses cookies. If you do not want to allow us to use cookies and/or non-personalized Ads, kindly clear browser cookies after closing this webpage.

Read Privacy Policy.

PC users can consult Corrine Chorney for Security.

Want to know more about us? Read Notability and Mentions & Our Setup.

Copyright © 2022 - The Customize Windows | dESIGNed by The Customize Windows

Copyright  · Privacy Policy  · Advertising Policy  · Terms of Service  · Refund Policy