I have a XEN VPS and it's been running Ubuntu for some years now.
AUtomatic security upgrades are on and I've manually upgraded it continously and also done releas-upgrades whenever there's been a new release. All has been working great!
But now, after upgradeing to 14.04 LTS, the VPS won't boot the latest kernel (3.13.0-24) even though it's set to default. It always failback to 3.2.0-60 and for some reason the VPS seams very unresponsive, compared the before.
The support wrote in a ticket something about compiling my own kernel, with pvops enabled, but I'm not sure how to do that, or why I should compile my own kernel.
Doesn't Ubuntu support to be run on a XEN host?
Best Answer
I ran into the same problem. Try as I might I could not boot Ubuntu's 14.04 v3.13 kernel on amd64, nor could I boot a stock 3.15 kernel from kernel.org on amd64. My VPS provider indicated that the following error was being reported:
I suspect it has to do with some bug/incompatibility between an older version of Xen running on dom0 and recent versions (> 3.12) of the kernel running as domU. The good news is that — at least in my case — only amd64 seems to exhibit the issue.
Possible workarounds: