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Full Discussion: Upgrade AIX 5.3 to AIX6.1
Operating Systems AIX Upgrade AIX 5.3 to AIX6.1 Post 302858745 by rbatte1 on Tuesday 1st of October 2013 09:20:35 AM
Old 10-01-2013
This might seem like a great way to do it, but it depends what you are starting with. Do you have a NIM server for a starter?

Smilie I think that the unmirrorvg will not split you off a copy that you can boot from later, it simply removes the mirror and leave the disk free to be re-used. Smilie
Smilie Smilie I do not beleive that you can just boot from this disk. It will be empty. Smilie Smilie

What current resources do you have? If you have 4 local disks that you can boot from (and all your data elsewhere) it might be better to make an alternate boot pair. Assuming the local disks are hdisk0-3 and hdisk0 & 1 are on one controller and hdisk2 & 3 are on another, you would be best to first spread your risk. Make the rootvg from hdisk0 & 2 for instance so you are protected from a controller failure. If you need to move disk contents from one to another, use migratepv, but be aware that this can take a long time. Additionally, you will need to recreate the boot image and correct the boot-list as stated by ibmtech

If you can do this process and it leave you two disks free, then you can use the smit panels:-
  • smit
    • Software Installation and Maintenance
      • Alternate Disk Installation
This should build an alternate boot pair that you can revert to should your upgrade/migration have undesirable effects.

After this, you should test that you can boot from the alternate pair. You will need to get into SMS during the power-on process for this.


Another simpler approach would be to create and test a mksysb backup and restore to a separate machine. You would then be able to recover to your existing server if you need to. Of course you would need hardware to test this on, although good DR service suppliers will allow you testing time for this anyway. I'm presuming that you have DR provision already? Now is a good time to test it! Smilie


I'm hoping that I haven't scared you, and I'm open to being corrected if I'm wrong. I just don't want anyone to assume that an unmirrorvg will give you a split off boot disk.


I hope that this gives you something to consider and that it helps in your planning.



Robin
Liverpool/Blackburn
UK
 

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APTDCON(1)							    User manual 							APTDCON(1)

NAME
aptdcon - command line client for aptdaemon SYNOPSIS
aptdcon [OPTIONS] DESCRIPTION
aptdcon allows to perform package management tasks, e.g. installing or removing software, using aptdaemon. There isn't any need to be root to run this programme. OPTIONS
-v, --version Show the version number of the aptdcon. -h, --help Show information about the usage of the command. -d, --debug Show additional information on the command line. -i, --install PACKAGES Install the list of PACKAGES. If you want to install more than one package you have to put the package names into quotation marks. --reinstall PACKAGES Reinstall the list of PACKAGES. If you want to reinstall more than one package you have to put the package names into quotation marks. -r, --remove PACKAGES Remove the list of PACKAGES. If you want to remove more than one package you have to put the package names into quotation marks. -p, --purge PACKAGES Purge the list of PACKAGES. If you want to purge more than one package you have to put the package names into quotation marks. -u, --upgrade PACKAGES Upgrade the list of PACKAGES. If you want to upgrade more than one package you have to put the package names into quotation marks. --upgrade-system Upgrade the whole system. --fix-install Try to complete a previously cancelled installation by calling "dpkg --configure -a". --fix-depends Try to resolve unsatisified dependencies. Attention: Currently you don't get a confirmation of the changes, which makes this method quite dangerous since it could remove a lot of packages. --add-vendor-key PUBLIC_KEY_FILE Install the PUBLIC_KEY_FILE to authenticate and trust packages singed by the vendor. --add-vendor-key-from-keyserver PUBLIC_KEY_ID Download and install the PUBLIC_KEY_ID to authenticate and trust packages singed by the vendor. Requires the --keyserver to be set. --key-server KEYSERVER Download vendor keys from the given KEYSERVER. --remove-vendor-key FINGERPRINT Remove the vendor key of the given FINGERPRINT to no longer trust packages from this vendor. --add-repository 'DEB_LINE' Allow to install software from the repository specified by the given DEB_LINE. You have to put quotation marks around the DEB_LINE since it normally contains spaces: 'deb http://ftp.de.debian.org/debian unstable main' --sources-file SOURCES_FILE Specify an alternative sources file to which the new repository should be written. SOURCES_FILE should be only the basename: back- ports.list --list-trusted-vendors Show all trusted software vendors and theirs keys. --hide-terminal Do not attach to the interactive terminal of the underlying dpkg call. --allow-unauthenticated Allow to install packages which are not from a trusted vendor. EXAMPLES
The following command will install the package xterm and remove the package eterm in the same run: $ aptdcon --install "xterm" --remove "eterm" To handle more than one package the names have to be put into quotation marks. The following command will install xterm and eterm: $ aptdcon --install "xterm eterm" The following command will add the backport repository to the sources.list in a separate file /etc/apt/sources.list.d/backports.list : $ aptdcon --sources-file backports.list --add-repostiry "deb http://archive.backports.org/debian stable main" DIAGNOSTICS
By default aptdaemon logs to the syslog facility AptDaemon. Furthermore you can use the -d option to get additional information on the com- mand line. HOMEPAGE
https://launchpad.net/aptdaemon BUGS
You can report bugs at the Launchpad site of aptdaemon: https://bugs.launchpad.net/aptdaemon/+filebug AUTHOR
Sebastian Heinlein <devel at glatzor dot de> SEE ALSO
aptd(1), org.debian.apt(7), org.debian.apt.transaction(7) aptdaemon December 2009 APTDCON(1)
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