Experiences with SunOS 4.1
Ira Winston
ira at central.cis.upenn.edu
Sun Jul 22 05:52:56 AEST 1990
I recently upgraded a Sun-4/280 running SunOS 4.0.3 to a SPARCserver 490
running SunOS 4.1. I have the following observations:
The hostname is now in /etc/hostname.xxn (xxn is the name of the ethernet
interface). If you use emacs you have to be careful not to leave
/etc/hostname.xxn~ files around. They confuse /etc/rc.boot.
In order to enter the host's IP address in suninstall you must re-select
the ethernet interface even though it already has an 'x' next to it.
top has to be recompiled.
The -p option to ps is no longer allowed. It was redundant anyway.
calendar is no longer run by default in crontab.
The default on the newfs command is now '-i 2048' (1 inode per 2048 bytes
of filesystem). The documented default under 4.0.x was 2048 but in
reality the default was 4096. The result is that you wind up losing about
5% of your filesystems to the extra space required for the inodes. I've
been creating new filesystems with 'newfs -i 4096'.
The add_client command seems to randomly delete lines for /etc/exports.
I've been backing up /etc/exports before running add_client to avoid this.
Kyoto Common Lisp (akcl) doesn't work on SPARCserver 490's due to a change
in the maximum DATA segment size. An (int)&extext in akcl/h/bsd.h has to
be changed to (unsigned)&etext to fix the problem.
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