05-28-2014
Quote:
Originally Posted by
tde3000
I have this weird notion that upgrading the TL does not cause the machine to wipe, but upgrading a major version (from aix 6 to 7) means it's actually a fresh install and will wipe the date and i have to install the software again (TSM server, for instance).
This is definitely not the case. A TL update and a version update differ only in scope (of the replaced OS software), but not in principle.
Having said this, a fresh install when updating to a new version might be a good idea, because you have the opportunity to "clean up" the system. But it is not mandatory at all.
Quote:
Originally Posted by
tde3000
Trying to google it, i came across references to migration vs upgrade, and hoped maybe i can upgrade my server to aix 7 while keeping all installed software, but dind't find any further explanation.
A "migration" (or "alternate disk migration") works like this (principle only): You have a system with 2 (mirrored) rootvg disks. You break the mirror so that you have two independent copies of your rootvg. One of these is used to do the update (or fresh install). Then you have the opportunity to test everything. Once you are finished testing you remirror again, either booting from the old disk (this would wipe out your update and reinstate what you had) or booting from the updated disk (this way destroying the old version).
The gain is: at every time you have a working copy of a known-to-work configuration and you can step back and start over at any time should anything not work as expected. Google for "alternate disk install" or "alternate disk migration". Related searches would be "multibos": basically several versions/configurations residing side by side, similar to a multiboot PC.
I hope this helps.
bakunin
This User Gave Thanks to bakunin For This Post:
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LEARN ABOUT LINUX
update-manager
UPDATE-MANAGER(8) System Manager's Manual UPDATE-MANAGER(8)
NAME
update-manager - graphical management of software packages updates
SYNOPSIS
update-manager [options]
DESCRIPTION
Update-manager is a frontend for the apt package management system. It allows you to perform some actions of the command line tool apt-get
in a graphical environment.
Update-manager is especially designed for upgrading your system, or migrating your system towards a more recent version.
OPTIONS
For a daily use, you may launch update-manager with no options so that your system is just upgraded.
For migration purposes, update-manager accepts some options:
-h, --help
Show a similar help message
-c, --check-dist-upgrades
Check if a new distribution release is available
-d, --devel-release
Check if upgrading to the latest devel release is possible
-p, --proposed
Try to run a dist-upgrade
--dist-upgrade
Try to run a dist-upgrade
ACTIONS PERFORMED DURING AN UPGRADE TO A NEW VERSION
* eventually reinstall the package ubuntu-desktop
* switch to an updated sources.list entries
* adds the default user to new groups if needed
SEE ALSO
Synaptic, sources.list, aptitude
AUTHORS
update-manager was developed by Michael Vogt <mvo@ubuntu.com> with various contributors (see AUTHORS file)
This manual page was originally written by Bruno Mangin and Michael Vogt <mvo@ubuntu.com>.
COPYRIGHT
Copyright (C) 2006-2007 Canonical
There is NO warranty. You may redistribute this software under the terms of the GNU General Public License. For more information about
these matters, see the files named COPYING.
August 2, 2007 UPDATE-MANAGER(8)