Installing and recovering systems is one of the most time-consuming tasks for any IT department. Imaging software, commercial and open source, creates compressed images of a client's hard drive data and stores them on a central server. These images can then be used to restore systems or roll out new ones. One useful open source imaging applications is SystemImager.
SystemImager has many advantages over traditional imaging methods. It uses rsync to store the image remotely, and can do a backup or full install in just three to five minutes. Images are complete copies of a filesystem, and their files can be edited. Images on a server can be updated when a change is made to a client, and only the changes need be copied over to the image. You can also make changes to the image on the server and push it out to clients; once again, only the changes are copied. SystemImager also supports auto-installation; clients can receive an image based on their MAC addresses.
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