First, you must restore the SunOS release 4 system configuration files to a temporary directory on the Solaris 7 system. After the information is back on the system in the temporary directory, you need to make it available in the Solaris 7 operating environment. Some of the data can be merged into the files, while some types of data must be converted to new formats.
The system's configuration defines which files you need to work with. Complete the restore by merging or converting files as follows:
Systems with no name service: If the system has no name service, merge or convert all the relevant system files located in /etc and /var.
Systems that are NIS master servers: If the system is a NIS master server, merge or convert all the files that reside in the NIS master directory (for example, /etc). Additionally, update other local configuration files in /etc and /var.
To make data from any of the following files available, merge the changes into the Solaris 7 version of the same file. Note, however, that not all of these files were modified on the SunOS release 4 system. Identify files that were changed on the SunOS release 4 system and merge these only. As you read the list, note that some of the file names are slightly different. For example, /etc/auto.* files are now /etc/auto_*.
The following is an example list of the SunOS release 4 files backed up using the instructions in the first part of this chapter. These files are candidates for merging into the Solaris 7 operating environment. See Appendix D, System Files Reference Table, to examine SunOS release 4 files for changes.
All automounter maps, including /etc/auto.master
Many system files, such as the /etc/fstab file, have been replaced and do not exist under the Solaris 7 operating environment. Information from these files must be extracted and manually converted in the Solaris 7 environment. See Appendix D, System Files Reference Table, to examine SunOS release 4 files for changes.
Do not restore operating system executable files (such as system commands in /usr/bin) from the SunOS release 4 system to your system after installing the Solaris 7 software.
/etc/uucp - There have been some changes to the UUCP system. The Config, Grades, and Limits files are new in the Solaris 7 operating environment. The files Devconfig, Devices, Dialcodes, Dialers, Permissions, Poll, Sysfiles, and systems are the same in the Solaris 7 operating environment as they were in the SunOS release 4 software. These files can be merged together. There are also several SunOS release 4 files that are not used in the Solaris 7 operating environment.
/etc/group - The basic format of this file is the same as it was in the SunOS 4.1 and SunOS 4.1.x releases. However, previous releases used a group entry beginning with a plus sign (+) or minus sign (-) to selectively incorporate entries from NIS maps for group. See the group(4) man page if that compatibility is needed under the Solaris 7 operating environment.
/etc/exports - File systems to be shared on the network under the Solaris 7 operating environment use the /etc/dfs/dfstab file instead of /etc/exports. The format of entries in this file is like the following.
share -F fstype -o options -d "text" pathname resource
See the dfstab(4) man page for additional information.
dev raw_dev mnt_pt fs_type fsck_pass auto_mnt mnt_option
Refer to the vfstab(4) man page for additional information.
/etc/passwd - The format of the passwd file is the same as that under the SunOS release 4 software. However, user passwords are now stored in the /etc/shadow file. Refer to the passwd(4) and shadow(4) man pages for additional information.
/etc/ttytab - Under the SunOS release 4 system, ttytab was used to control serial ports and the characteristics of the terminals on those serial lines. Under the Solaris 7 operating environment, the Service Access Facility is used to configure this capability.
/etc/printcap - Under the Solaris 7 operating environment, printers are configured using the SunOS release 5.7 LP print service. See System Administration Guide, Volume I for additional information.