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Category: Virtualization

OpenStack: Create Instance Snapshot to backup or migrate Instance

May 2, 2016May 2, 2016 No Comments

OpenStack Snapshots can be utilized to backup Instance before some critical changes are made on Instance OS or to migrate Instance to the new OpenStack Cloud. In this tutorial we will create snapshot from existing Instance to launch it in […]

Grzegorz Juszczak Cloud Computing, Virtualization

Convert qcow2 to raw image and raw to qcow2 image

January 24, 2016February 10, 2016 3 Comments

qemu-img is a QEMU disk image utility, which allows us to create, convert and modify images offline. It can handle all image formats supported by QEMU (including qcow2 and raw image format).

Grzegorz Juszczak Linux, Virtualization

Edit qcow2 or raw image files offline using virt-edit

January 22, 2016February 10, 2016 1 Comment

Sometimes I need to edit files inside qcow2 or raw image, but for some reason I don’t want to launch the image in KVM or in Openstack cloud. The image can be edited offline using virt-edit tool.

Grzegorz Juszczak Cloud Computing, Virtualization

How to Install Docker on Fedora 23

January 3, 2016February 11, 2016 No Comments

Docker is a software which automates the deployment of applications inside Linux containers, by providing an additional layer of abstraction. This guarantees that it will always run the same, regardless of the environment it is running in. Docker uses the […]

Grzegorz Juszczak Linux, Virtualization

Install OpenStack on KVM – How To Configure KVM for OpenStack

October 21, 2015September 8, 2018 4 Comments

Typical OpenStack cloud setup consists of more than one node (usually one Controller node and several Compute nodes), which requires lot of physical computers / servers available to perform the installation. This complicates the situation, especially if we need to […]

Grzegorz Juszczak Cloud Computing, Virtualization

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