Re: [gentoo-user] Linode discontinuing Xen, migrating to KVM

[J. Roeleveld]

On Monday, October 2, 2017 11:17:46 PM CEST Tanstaafl wrote:
> On 10/2/2017, 4:03:37 PM, Tanstaafl <tanstaafl@×××××××××××.org> wrote:
> > On 10/2/2017, 2:39:51 PM, Stroller <Stroller@××××××××××××××××××.uk> wrote:
> >>> On 2 Oct 2017, at 18:30, Tanstaafl <tanstaafl@×××××××××××.org> wrote:
> >>>
> >>> One thing I do seem to recall is there was somewhere that I had to
> >>> define Xen as the virtualization environment being used, but I can't
> >>> remember where I did that. Was that in the kernel config? If so, their
> >>> tool should (hopefully) handle that change.
> >>
> >> See last lines:
> >>
> >> ~ $ grep -B 25 -ie xen -ie kvm /etc/rc.conf
> >
> > <snip>
> >
> >> # "xen0"           - Xen0 Domain (Linux and NetBSD)
> >> # "xenU"           - XenU Domain (Linux and NetBSD)
> >> ~ $
> >>
> >> This on a Linode host, BTW. They haven't told me I need to do anything,
> >> so I hope I'm ok.
> >>
> >> HTH,
> >
> > Thanks! Yes, at least now I know where that was specified... and since
> > there is nothing there for kvm, I guess you just leave it commented,
> > BUT...
> >
> > yours doesn't appear to be set?? Mine is set to "xenU".
>
> Also, yours shows 12 different choices, mine only shows 8:
>
> ############################################################################
> ## # LINUX SPECIFIC OPTIONS
>
> # This is the subsystem type. Valid options on Linux:
> # ""        - nothing special
> # "lxc"     - Linux Containers
> # "openvz"  - Linux OpenVZ
> # "prefix"  - Prefix
> # "uml"     - Usermode Linux
> # "vserver" - Linux vserver
> # "xen0"    - Xen0 Domain
> # "xenU"    - XenU Domain
> # If this is commented out, automatic detection will be used.
> #
>
> Wonder why that is?

These got updated at some point.
For Xen-guest, I specify:
# rc_sys="xenU"
for KVM guests (got 2 running in the "cloud"):"
# rc_sys=""

If 'rc_sys' is not set, openrc tries to auto-detect.
If it is set, it will not auto-detect and use whatever you specified.

--
Joost