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NetBSD 6.1.5 - man page for compat_sunos (netbsd section 8)

COMPAT_SUNOS(8) 		   BSD System Manager's Manual			  COMPAT_SUNOS(8)

NAME
     compat_sunos -- setup procedure for m68k, sparc and sparc64 architectures

DESCRIPTION
     NetBSD/sparc64, NetBSD/sparc and some of the NetBSD/m68k architectures can run SunOS exe-
     cutables.	Most executables will work.

     The exceptions include programs that use the SunOS kvm library, and various system calls,
     ioctl()'s, or kernel semantics that are difficult to emulate.  The number of reasons why a
     program might fail to work is (thankfully) longer than the number of programs that fail to
     run.

     Static executables will normally run without any extra setup.  This procedure details the
     directories and files that must be set up to allow dynamically linked executables to work.

     The files you need are on your SunOS machine.  You need to worry about the legal issues of
     ensuring that you have a right to use the required files on your machine.	On your NetBSD
     machine, do the following:

	1.   mkdir -p /emul/sunos/usr/lib /emul/sunos/usr/5lib

	2.   cp SunOS:/usr/lib/lib*.so.*.* NetBSD:/emul/sunos/usr/lib

	3.   cp SunOS:/usr/5lib/lib*.so.*.* NetBSD:/emul/sunos/usr/5lib

	4.   cp SunOS:/usr/lib/ld.so NetBSD:/emul/sunos/usr/lib/ld.so

	5.   If you ever expect to use YP, you will want to create a link:
	     ln -s /var/run/ypbind.lock /etc/ypbind.lock

     Alternatively, you can use an NFS mount to accomplish the same effect.  On your NetBSD
     machine, do the following:

	1.   mkdir -p /emul/sunos/usr

	2.   mount SunOS:/usr /emul/sunos/usr

     This will place the SunOS libraries on your NetBSD machine in a location where the SunOS
     compatibility code will look for first, where they do not conflict with the standard
     libraries.

NOTES
     When using compat_sunos on NetBSD/sparc64, the COMPAT_NETBSD32 option must also be used.

BUGS
     A list of things which fail to work in compatibility mode should be here.

     SunOS executables can not handle directory offset cookies > 32 bits.  Should such an offset
     occur, you will see the message ``sunos_getdents: dir offset too large for emulated
     program''.  Currently, this can only happen on NFS mounted filesystems, mounted from servers
     that return offsets with information in the upper 32 bits.  These errors should rarely hap-
     pen, but can be avoided by mounting this filesystem with offset translation enabled.  See
     the -X option to mount_nfs(8).  The -2 option to mount_nfs(8) will also have the desired
     effect, but is less preferable.

     The NetBSD/sparc64 support is less complete than the other ports.

BSD					 February 3, 2001				      BSD


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