The Ubuntu 14.04 package linux-cloud-tools-virtual, used for compatibility with Hyper-V, depends on linux-cloud-tools-3.13.0-44-generic. However, the standard installed kernel is 3.13.0-32, which requires installation of linux-cloud-tools-3.13.0-32-generic instead.

Is this a bug? Is there some way to get the appropriate version with the package manager and automatically keep it in sync even as the kernel gets upgraded over time?


You can (and probably should) do the opposite thing — install linux-image-generic (or sth. like that) to ensure that also the kernel is updated, like the cloud-tools; they'll be kept in sync by Ubuntu people. This will also allow you to get security updates — which you do want anyway in almost any case.

You also probably want to setup automatic package updates through unattended-upgrades.

The only thing left to you is to reboot the machine when the kernel is updated, unless you let unattended-upgrades do that for you.

  • It seems that linux-cloud-tools-virtual and linux-image-generic are currently in sync at kernel version 3.13.0-63. But they were not in sync when I asked the question, and the former says in its description: "This package will always depend on the latest minimal generic kernel cloud tools." which doesn't sound like a commitment to keep them in sync. – pdg137 Sep 4 '15 at 22:14
  • Sorry, I didn't get you had installed linux-image-generic, and assumed the packages would be in sync. I'm guessing then the answer is This is a bug, because I don't think there's another way to keep packages like these in sync. But I'm not expert enough to answer, and the only info I found is this other question: serverfault.com/q/670049/29689. If I were you, at this point, I'd ask upstream. – Blaisorblade Sep 4 '15 at 22:56
  • I think I probably have it just because it's the default. With them currently in sync, though, maybe it's not a problem any more. Thanks! – pdg137 Sep 4 '15 at 22:58

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