11-25-2008
First off: a good strategy is to update when you must, not, when you can!
Having said this: version management is oftenly driven by the applications: some require a certain version down to the fix level and the only thing you can do is to have exactly this version - even if the request is outright silly one usually can't argue with product support.*) So,if you have a larger environment you probably have all sorts of AIX versions running on different systems.
5.3 is a very mature and stable AIX version. I would - nowadays - recommend ML08, but when this came out in summer the update process from ML06 was so buggy we had to manually install ML07 first, then manually (fileset by fileset) update to ML08 and still had all sorts of issues on the test system. This just to illustrate what i have said before.
On the other hand, one customer of mine has already several 6.1 systems out and running. They froze 5.x at 5.2ML5 and did never update to 5.3 at all. They move their machines now to 6.1 at once. Nevertheless they have a few systems with different versions because of said application requirements. These systems range from 4.3.3ML11 up to 5.3ML06.
The best way to deal with the increasing number of different versions is to build and nurture a sound installation base in form of a NIM server, IMHO. Nag your management until they give you the resources for one.
I hope this helps.
bakunin
______________
*) the same is true for other machine specifics: for instance, SAP decrees "twice the amount of real memory" in swap space to be necessary. If you have a problem, whatever it might be, they will force you to first meet this "requirement" before they even consider your problem. That the machine might have swapped not a single page out in a year is no argument at all for them. Ridiculous, but inevitable.
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LEARN ABOUT DEBIAN
perlbeos
PERLBEOS(1) Perl Programmers Reference Guide PERLBEOS(1)
NAME
README.beos - Perl version 5.8+ on BeOS
DESCRIPTION
This file contains instructions how to build Perl under BeOS and lists known problems.
BUILD AND INSTALL
Requirements
I have built and tested Perl 5.8.6 and 5.9.1 under BeOS R5 x86 net server. I can't say anything with regard to PPC. Since Perl 5.8.0 had
been released for BeOS BONE, I suspect, there is a good chance, that it still compiles on a BONE system. The only change I've made, that
affects BONE systems is the recognition of whether it is a BONE system or not in "hints/beos.sh". Now network socket support should remain
enabled on BONE systems. This might as well break the build, though.
As more recent versions of autoconf require flock() support, I wrote a flock() emulation (flock_server) and released it on BeBits:
http://www.bebits.com/app/4030
If you want to build a Perl with flock() support, you have to install this package first.
Configure
With flock() support:
CFLAGS=-I/path/to/flock/server/headers ./configure.gnu
--prefix=/boot/home/config
Replace "/path/to/flock/server/headers" with the path to the directory containing the "flock.h" header.
Without flock() support:
./configure.gnu --prefix=/boot/home/config
Build
With flock() support:
make LDLOADLIBS="-lnet -lflock"
Without flock() support:
make LDLOADLIBS="-lnet"
"-lnet" is needed on net server systems only and if the compiler doesn't add it automatically (Be's R5 gcc does, Oliver Tappe's gcc 2.95.3
does not).
Install
Install all perl files:
make install
Create a symlink for libperl:
cd ~/config/lib; ln -s perl5/5.8.6/BePC-beos/CORE/libperl.so .
Replace 5.8.6 with your respective version of Perl.
KNOWN PROBLEMS
o Network socket support is disabled for BeOS R5 net server. I didn't dare yet to try enabling it and see what problems occur.
o The LFS (large file support) tests ("t/op/lfs" and "xt/Fcntl/t/syslfs") are disabled as seeking beyond 2 GB is broken according to
jhi@iki.fi who was the last one checking the BeOS port and updating this file before me. Haven't checked this myself.
o The "t/io/fflush" test fails at #6. As far as I can tell, this is caused by a bug in the BeOS pipes implementation that occurs when
starting other child processes. In the particular test case a "system("perl -e 0")" flushes the stdout pipe of another child process.
o The "ext/POSIX/t/waitpid" test fails at #1. After all child processes are gone BeOS' waitpid(-1,...) returns 0 instead of -1 (as it
should). No idea how to fix this.
CONTACT
For BeOS specifics problems feel free to mail to: Ingo Weinhold <bonefish@cs.tu-berlin.de>
Last update: 2004-12-16
perl v5.14.2 2011-09-26 PERLBEOS(1)