> I'm migrating my 9legacy machines to GCP but my auth/cpu servers can't
> get root from the fileserver.
> Is there someone that is using full system Plan 9 on GCP?

Yes, but only using a local file server. 
I've never tried to boot Plan 9 from a remote file server so far.

> Notes:
> - DHCP of VPC network on GCP sends ipmask=/32 options to that client.
> - If ipmask is /32 then ip/ipconfig ignores it.
> - Therefore each instance can't reach other instances in the same region.
> 
> In my experience, the communications works only if /net/ipifc is
> configured from /lib/ndb/local by ip/ipconfig -N, its ipmask is /20,
> and it is added to /net/iproute manually that the routes to other
> instances, but in this case, the cpu/auth servers couldn't reach to
> the fs because nothing to add the routes before getting root.

9legacy includes a patch that considers 32 mask as 0.

http://9legacy.org/9legacy/patch/ip-ipconfig-mask.diff

-- 
David du Colombier

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