openstack/diskimage-builder
Code Issues Proposed changes
b4300fdc5c
diskimage-builder/doc/source/user_guide/installation.rst
Gregory Haynes 360033027f Create a user guide 
Our docs are very developer focused. Lets create a separate user guide
to help new users get started.

Change-Id: I8a03920e6d3306dd0405177875ea55ccb4b40fea
2015-04-01 19:51:08 +00:00

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Installation

Diskimage-builder is run directly out of the source repository.

Requirements

If you have 4GB of available physical RAM (As reported by /proc/meminfo MemTotal), or more, diskimage-builder will create a tmpfs mount to build the image in. This will improve image build time by building in RAM. This can be disabled completely by passing --no-tmpfs to disk-image-create. ramdisk-image-create builds a regular image and then within that does ramdisk creation. If tmpfs is not used, you will need enough room in /tmp to store two uncompressed cloud images. If you do have tmpfs, you will still need /tmp space for one uncompressed cloud image and about 20% of that for working files.

Installation

  • Clone the repository locally, then add bin to your path.
  • Make sure you have qemu-img (qemu-utils package on Ubuntu/Debian, qemu on Fedora/RHEL/openSUSE) and kpartx installed.