Tested with and without kernel change with kernel change. With:
client% mount -v
192.168.35.1:/data/home/ambrisko/netboot on / (nfs, vnodes: count 676 lazy 1)
devfs on /dev (devfs, vnodes: count 30 lazy 0)
procfs on /proc (procfs, local, vnodes: count 2 lazy 0)
linprocfs on /compat/linux/proc (linprocfs, local, vnodes: count 2 lazy 0)
linsysfs on /compat/linux/sys (linsysfs, local, vnodes: count 2 lazy 0)
fdescfs on /dev/fd (fdescfs, vnodes: count 4 lazy 0)
tmpfs on /tmp (tmpfs, local, vnodes: count 8 lazy 0)
tmpfs on /var/tmp (tmpfs, local, vnodes: count 2 lazy 0)
tmpfs on /var/run (tmpfs, local, vnodes: count 8 lazy 0)
devfs on /compat/linux/dev (devfs, vnodes: count 4 lazy 0)
fdescfs on /compat/linux/dev/fd (fdescfs, vnodes: count 2 lazy 0)
tmpfs on /compat/linux/dev/shm (tmpfs, local, vnodes: count 2 lazy 0)
Without:
% ./mount -v
192.168.97.254:/data/home/ambrisko/netboot on / (nfs)
devfs on /dev (devfs)
procfs on /proc (procfs, local)
linprocfs on /compat/linux/proc (linprocfs, local)
linsysfs on /compat/linux/sys (linsysfs, local)
fdescfs on /dev/fd (fdescfs)
tmpfs on /tmp (tmpfs, local)
tmpfs on /var/tmp (tmpfs, local)
tmpfs on /var/run (tmpfs, local)
tmpfs on /var/db/pkg (tmpfs, local)
%
On different machines but with the same binary.