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Offline template conversion

asked 2016-10-19 18:57:11 +0300

jrack gravatar image

This might tread into "Use Coriolis" which is a fine enough answer, but figured I would poke at it a bit. ;-)

We have windows templates on a different hypervisor that we want to make available in a heterogeneous openstack cloud. So converting the files is easy, but we also need to handle the old drivers and the new ones while also injecting cloudbase-init.

For Hyper-V we are golden on drivers so it is just purge the previous stack to avoid strange BSODs and install cb-init.

For KVM though I need to get the virtio stack staged and installed beyond purging and cb-init. This creates annoying trips through glance starting w IDE, then back to scsi, etc. all while a person runs the process.

Could we at minimum stage the drivers using guestfish to avoid multiple volume annoyances etc? cb-init may still be declarative and touch the registry which makes it harder to do offline, but how far can we make template conversion headless and factory?

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answered 2016-10-21 22:32:06 +0300

avladu gravatar image

updated 2016-10-21 22:33:58 +0300


You can find all of your answers by looking into "windows-imaging-tools" on how to inject the drivers and "install-cloudbase-init-offline" on how to inject cloudbase-init.

These are the resources you need to poke with, depending on your scenarios:


Adrian Vladu

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Awesome. I am not starting with a WIM so much of the slip streaming work won't match up, but I should be able to read through some of the approach and see if I can translate them to an existing VM state using guestfish etc. Just means I have to chase down nbd support.

jrack gravatar imagejrack ( 2016-10-24 17:16:00 +0300 )edit

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Asked: 2016-10-19 18:57:11 +0300

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Last updated: Oct 21 '16