Re: custom Xen on custom kernel on CentOS 7

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On Tue, Feb 27, 2018 at 3:50 PM, John Vetter <john.vetter@xxxxxxxx> wrote:
> Hi,
> I'm trying to run an arbitrary Xen version (4.7.x) on a recent kernel (say,
> 4.13.x) on CentOS 7.
> What is the recommended way for doing this? (I am new to Xen and
> virtualization).
> I tried the following:
> 1. installed xen4centos.
> 2. built linux kernel 4.13.x and installed it (using make install)
> 3. built xen 4.7.x and installed it (using make install).
> grub2-mkconfig and don't seem to be picking up the
> combination of new kernel and new xen and making an entry in the grub.cfg
> file.

On systems with grub2, is tweaking the global grub2
config -- making sure Xen runs first, and adding some default
configuration.  Even without that, grub2-mkconfig should be creating
entries if the binaries exist.

Are you sure:
1. That your new kernel & hypervisor have installed binaries in /boot?
2. That grub2-mkconfig is writing the config to the proper directory?
(i.e., that, you're using the correct '-o' argument?)

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