Re: nfs error diskless

[christos%astron.com@localhost (Christos Zoulas)]

In article <20181113172848.GA10366@laura>,
Dima Veselov  <kab00m%lich.phys.spbu.ru@localhost> wrote:
>Greetings,
>
>I am using diskless NetBSD often (real or VMs) and sometimes I
>get nfs error 65 for <root>.
>
>It seems that NetBSD won't work when NFS server is reachable
>via router and work when it is reachable directly (in the
>same network).
>
>My current setup is: two PV VMs (actually copied), located in 
>different networks, but connecting to the same NFS server. 
>NFS server is directly reachable to VM1 and via router for VM2.
>VMs are copies and both have static dhcp leases in ISC DHCPD.
>Startup argument is "root=xennet0" for both.
>
>VM1 works perfectly, but VM2 stops at "Starting network" point. 
>
>Tcpdump says kernel mount root and happily reading 
>/sbin/init, /dev and lot of other files, but when console 
>says "Starting network" all communications are stopped. I 
>traced it on Dom0 via mac-address so I know there were no 
>NFS, no DHCP or other packet sent after this point.
>
>Starting network.
>nfs send error 65 for 172.20.27.4:/export/nfsroot/ospf1
>nfs send error 65 for 172.20.27.4:/export/nfsroot/ospf1
>
>Only two or three error messages and then it hangs forever.
>
>fstab contain no root FS and ifconfig.xennet0 contain only
>"dhcp" option (it won't work with no ifconfig file either).
>
>Adding "set -x" to /etc/rc.d/network did not helped.
>
>How may I debug this issue or maybe someone have won this 
>battle already?

I would add a set -x in /etc/rc.d/network perhaps in network_start()...

christos