SunOS 4.1x and 5.x Administrative File differences

This article provides a list of the important files that have changed between SunOS 4.1.x and Solaris 2.x (SunOS 5.x) based systems.

SunOS 4.XSunOS 5.XComments
/boot /ufsboot Boot program.
/etc/auto.master /etc/auto_master Automounter configuration file.
/etc/auto.home /etc/auto_home Automounter configuration file.
/etc/exports /etc/dfs/dfstab Files shared by NFS and RFS.
/etc/fstab /etc/vfstab Table of files to mount.
/etc/gettytab /etc/ttydefs Terminal definitions.
/etc/passwd /etc/passwd


Shadow password file is now used.
/etc/printcap /usr/share/lib/terminfo


Database of printer and terminal characteristics.

Directory of printer information.

/etc/rc /sbin/rc#


The /etc/rc#.d subdirectory scripts are now used, which each rc# script and rc#.d directory controlling the run-level #.
/etc/rc.boot " "
/etc/rc.local " "
/etc/rc.single " "
/etc/termcap /usr/share/lib/terminfo Database of printer and terminal characteristics.
/etc/ttytab /etc/inittab Table of services to be started by init.
NA /etc/saf Directory of SAF services.
NA /etc/default/login Defaults for login. Root login limited to console.
/usr/share/man /usr/share/man Man page organization has been changed. System administration man pages are in 1M. You can set an environment variable to specify the order of search for directories and sections.
/var/spool/mail /var/mail Mail spool directory.
/vmunix /kernel/unix

/platform/\uname -m'/kernel/unix

The hardware independent UNIX kernel.

The hardware dependent part of the kernel.