Mirage OS 1.x (unsupported)
Unsuported - This release of the Mirage package set is unsupported and developers should use the latest version.
To being using Mirage OS, you must first install OPAM. If you really would like to install the older, unsupported, package set then you simply need to
opam install mirage.1.1.3, which will give you the most up-to-date packages set for the 1.x branch. See the v1.0 announcement, and v1.1 announcements for changes and to get started with the libraries.
If you have already installed an older version and would like to upgrade to the current release then simply do the following:
$ opam remove mirage $ opam update && opam upgrade $ opam install mirage