Re: NetBSD on Amazon EC2

[Stephen Borrill <netbsd%precedence.co.uk@localhost>]

On Tue, 7 Nov 2017, el kalin wrote:
> it says there:
>
> "I guess this is the patch from XSA-240, you need to boot with
>
> pv-linear-pt=true
> on the Xen command line"
>
> how would that work on aws? can "pv-linear-pt=true" be used in a some
> .d or .conf file at startup?

Unfortunately no, this is a change on the hypervisor side. The guest 
cannot alter this.

> even if that was possible the only way to do that on aws would be to
> start mounting root partitions on currently running netbsds. and if
> you still have enough /dev/xbd*s left. apparently by default there are
> only up to xbd3*. even if the dmesg shows a new disk attached mounting
> would be a pain if you already have xbd3 devices mounted...
>
> thanks...
>
>
>
>
>
>
> On Sat, Nov 4, 2017 at 9:40 AM, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
>
> > Please check the following thread:
> >
> > http://mail-index.netbsd.org/port-xen/2017/10/23/msg009097.html
> >
> > Chavdar Ivanov
> >
> > On Sat, 4 Nov 2017 at 13:03 r0ller <r0ller%freemail.hu@localhost> wrote:
> >
> > > Hi All,
> > >
> > > Mine doesn't work either and rebooting it again does not help:(
> > >
> > > Best regards,
> > > r0ller
> > >
> > > -------- Eredeti levél --------
> > > Feladó: Abhinav Upadhyay < er.abhinav.upadhyay%gmail.com@localhost (Link -> mailto:
> > > er.abhinav.upadhyay%gmail.com@localhost) >
> > > Dátum: 2017 november 4 08:05:07
> > > Tárgy: Re: NetBSD on Amazon EC2
> > > Címzett: Eric Haszlakiewicz < hawicz%gmail.com@localhost (Link -> mailto:
> > > hawicz%gmail.com@localhost) >
> > >
> > > On Sat, Nov 4, 2017 at 2:49 AM, Eric Haszlakiewicz <hawicz%gmail.com@localhost>
> > > wrote:
> > > > Up until today I was running a NetBSD server on Amazon's EC2 service,
> > > > but then I restarted it because Amazon told me they'd be forcing a
> > > > restart soon anyway, to "deploy important updates".
> > > > Of course, when I tried to start it back up, it failed. Trying to
> > > > start a brand new instance using the available NetBSD AMIs
> > > > (NetBSD-i386-7.0-201511211930Z-20151121-1234 (ami-9f8090fe)) also
> > > > fails in a similar way, specifically with errors like:
> > > >
> > > > Failed to read /local/domain/0/backend/vbd/7994/2050/feature-barrier.
> > > > Failed to read /local/domain/0/backend/vbd/
> > > 7994/2050/feature-flush-cache.
> > > > and
> > > > xc_dom_probe_bzimage_kernel: kernel is not a bzImage
> > > >
> > > > Do these errors ring a bell with anyone?
> > > > Does anyone have a working AMI that I can use?
> > > Yes, my instance also was rebooted last night (automatically by AWS
> > > for maintenance) and now unreachable. No idea how to get it back.
> > > (Didn't try creating new instance)
> > > -
> > > Abhinav