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David Johnson authored
the tb-set-node-os command with a second optional argument; if that is present, the first arg is the child OS and the second is the parent OS. We add some new features in ptopgen (OS-parentOSname-childOSname) based off a new table that maps which child OSes can run on which parents, and the right desires get added to match. We setup the reloads in os_setup along with the parents. Also needed a new opmode, RELOAD-PCVM, to handle all this. For now, users only have to specify that their images can run on pcvms, a special hack for which type the images can run on. This makes sense in general since there is no point conditionalizing childOS loading on hardware type at the moment, but rather on parentOS. Hopefully this stuff wiill mostly work on shared nodes too, although we'll have to be more aggressive on the client side garbage collecting old frisbee'd images for long-lived shared hosts. I only made these changes in libvtop, so assign_wrapper folks are left in the dark. Currently, the client side supports frisbee. Only in openvz for now, and this probably breaks libvnode_xen.pm. Also in here are some openvz improvements, like ability to sniff out which network is the public control net, and which is the fake virtual control net.
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