In message <20020627211332.GA783@antioche.eu.org> you write:

|> > My Solaris7 boxes boot off NetBSD-1.5.1 without problems.

|> Interesting. Could you post your config files ?

Only the relevant entries to save bandwidth.
All config files are published as NIS maps.
Boot server Uranos is a Sparc-10, Gaia is a Sparc-10, Mnemosyne is a Sparc-2.

================================================= /tftpboot/

lrwxr-xr-x    1 root     wheel          20 Mar  8 08:08 xxyyzz11.SUN4M -> boot.sun4m.sunos.5.7
  ...
lrwxr-xr-x    1 root     wheel          20 May  4 21:38 xxyyzzCE.SUN4C -> boot.sun4c.sunos.5.7
  ...
-r-xr-xr-x    1 root     wheel       93980 Sep  1  1998 boot.sun4c.sunos.5.7
  ...
-r-xr-xr-x    1 root     wheel       92200 Sep  1  1998 boot.sun4m.sunos.5.7
lrwxrwxrwx    1 root     wheel           1 Nov  1  2001 tftpboot -> .

================================================= /etc/bootparams

# @(#)bootparams 1.19 02/06/11 22:45:53

Gaia            root=Uranos:/export/root/Gaia \
                swap=Uranos:/export/swap/Gaia \
                gateway=Uranos:255.255.255.0

  ...

Mnemosyne       root=Uranos:/export/root/Mnemosyne \
                swap=Uranos:/export/swap/Mnemosyne \
                gateway=Uranos:255.255.255.0

  ...

================================================= /etc/ethers

# @(#)ethers 1.21 02/07/03 06:03:27
  ...
8:0:20:12:29:26 Gaia
  ...
8:0:20:0d:e9:8b Mnemosyne

================================================= /etc/exports

# @(#)exports 1.18 02/06/11 22:45:53

/archive        -maproot=root   unix
/tools          -maproot=root   unix
/home           -maproot=root   unix

/export/root/Gaia.solaris               -maproot=root   Gaia
  ...
/export/root/Mnemosyne.solaris          -maproot=root   Mnemosyne
  ...

/export/swap/Gaia                       -maproot=root   Gaia
  ...
/export/swap/Mnemosyne                  -maproot=root   Mnemosyne
  ...

/export/vtmp/Gaia                       -maproot=root   Gaia
  ...
/export/vtmp/Mnemosyne                  -maproot=root   Mnemosyne
  ...

/export/crash/Gaia                      -maproot=root   Gaia
  ...
/export/crash/Mnemosyne                 -maproot=root   Mnemosyne
  ...

  ...
/export/exec/sun4.sunos.5.7             -maproot=root   solaris

  ...
/export/local/sun4.sunos.5.7            -maproot=root   solaris

  ...
/export/X11R6/sun4.sunos.5.7            -maproot=root   solaris

  ...
/export/opt/sun4.sunos.5.7              -maproot=root   solaris

  ...

================================================= /etc/hosts

#       @(#)hosts 1.9 02/06/11 22:43:27
#       $NetBSD: hosts,v 1.5.4.1 2000/08/15 14:37:19 itojun Exp $
#
# Host Database
# This file should contain the addresses and aliases
# for local hosts that share this file.
# It is used only for "ifconfig" and other operations
# before the nameserver is started.
#
#
127.0.0.1               localhost
#
aa.bb.cc.16            Uranos loghost fonthost timehost
aa.bb.cc.17            Gaia mailhost
  ...
aa.bb.cc.206           Mnemosyne
#

================================================= /etc/hosts.equiv

Uranos
Gaia
  ...
Mnemosyne

================================================= /etc/netgroup

  ...
solaris (Gaia,,) (Mnemosyne,,)
unix    ... solaris ...
sun4m   ... (Gaia,,) ...
  ...
sparc2  ... (Mnemosyne,,) ...
sun4c   ... sparc2
  ...
all     sun4m sun4c ...
  ...

================================================= **EOT**