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git clone -b dev--recursive git://github.com/cinder/Cinder.git
Alternatively, if you first checkout dev, and then your remove your boost directory (necessary because we are using a submodule now) you should be able to update (and recurse submodules) using this (assuming you've already checked out dev ):
git pull --recurse-submodules git submodule init git submodule update --recursive
This option controls if new commits of all populated submodules should be fetched too (see git-config(1) and gitmodules(5)). That might be necessary to get the data needed for merging submodule commits, a feature git learned in 1.7.3. Notice that the result of a merge will not be checked out in the submodule, "git submodule update" has to be called afterwards to bring the work tree up to date with the merge result.