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215 bytes added ,  19:11, 9 March 2015
+ update dryrun
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With CRIU it's possible to periodically duplicate process on another box. Requires [[Applying images]] facility.
 
With CRIU it's possible to periodically duplicate process on another box. Requires [[Applying images]] facility.
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== Update dryrun ==
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Before updating a kernel/system libs one may duplicate a system service(s) into VM with updates and check they continue to run OK. If this test passes, then the real system update can be done.

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