[CentOS-virt] What is the purpose setting console=hvc0 in the dom0 grub config?

PJ Welsh

pjwelsh at gmail.com
Wed May 17 10:43:24 UTC 2017

On Tue, May 16, 2017 at 10:26 PM, Jerry <jerryubi at gmail.com> wrote:

> Howdy,
> I recently went through a frustrating experience trying to get Xen 4
> running on a CentOS 7 system.  After a fresh install, fully updating the
> system, rebooting, then trying to install Xen4CentOS it would fail to boot
> into the 4.9 kernel, sitting there with a blinking cursor indefinitely.

Check the BIOS to see if Hyperthreading is disabled. If so, enable it. I
had some Dell server (Dell R710s and R610s) that I finally figured out
would not boot like you describe when HT is off for some reason.
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