Upgrade from 10.20 to 11

[Kevin_107]

I am upgrading a few systems to 11 this week are there any main things to check/look out for ?!?! Thanks in advance

[Pete Randall]

The common recommendation around here is to cold-install rather than upgrade, though there are reports of successful upgrades, too.

Pete

[Kevin_107]

So I take it a cold install means just putting the 11 cd in and install. Will I have uninstall 10.20 first !??!

[Vicente Sanchez_3]

Hi Kevin,

I've installed 11.0 and recovered data rather than upgrade.

HP recomended me.

Regards, Vicente.

[Pete Randall]

Kevin,

No, there's no un-install.

Install, then vgimport your non vg00 volume groups (use vgexport -s -m/vgimport -s -m), and that's pretty much it.

Pete

[Victor_5]

Hi Kevin:

Cold install always it is the better way to do so, search in this forums, you will find tons of related posts. Good luck.

[Rita C Workman]

Kevin,

May I suggest you map out doing a cold install. Since this will completely wipe out your box and lay down the new operating system, preparation is the key to succeeding, be it cold install or upgrade.
I created a quick form and did a check off to ensure I touched all the bases I needed. You may want to develope something similar based on your needs. Here is also a thread from JRF that gives some insights noted below.

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xe24eded2442ed5118fef0090279cd0f9,00.html

Rgrds,
Rita

[harry d brown jr]

BEFORE you begin installing 11 make sure you have a current make_tape_recovery of your 10.20 system! if you don't have the latest ignite, get it here:

http://www.software.hp.com/products/IUX/download.html

Also, print out or make a copy on another system or tape of at least these files and output:

/etc/passwd
/etc/group
/tcb (if trusted system)
/etc/services
/etc/rc.config.d/netconf
/etc/hosts
/etc/resolv.conf
/etc/nsswitch.conf

opt/ignite/bin/print_manifest
vgdisplay -v
bdf
ioscan -fn

live free or die
harry

[James R. Ferguson · Accepted solution]

Hi Kevin:

First, *don't* update from 10.20 to 11.0. Cold install 11.x instead. Doing an upgrade from 10.20 to 11.x has not been met with a high degree of success. This has been discussed in this Forum extensively during the last two years.

Cold installation offers you the change to resize your filesystems and it offers you the chance to begin anew with *only* patches and files belonging to the new release.
If you do a cold-install (which is virtually guaranteed to work!) instead of an upgrade, then, your boot (vg00) is wiped clean and a new OS loaded from the Core OS CDROM.

If you have non-vg00 disks, leave them alone. Instead, before the cold install, 'vgexport' the volume groups representing any data you want preserved. After the installation completes, 'vgimport' them and you will have your data.

Start your installation by making an Ignite recovery tape of your existing vg00. In this way, should anything fail, you can rapidly restore your system. Current Ignite software and documentation is availble here:

http://www.software.hp.com/products/IUX/download.html

The installation of Ignite is simple; done with 'swinstall' and does not require a reboot. You can download and be making a recovery tape within 20-30 minutes.

A standard tape archive of vg00 can be produced by using the following command:

# make_tape_recovery -x inc_entire=vg00 -I -v -a /dev/rmt/0mn

Capture your key configuration files before you start. I like to 'diff' files in the list below, to those provided in a new release and "marry' my local needs to any enhanced features. Otherwise, many can be loaded as is.

Here's the basic list I tranfer to safe-keeping for reference, reuse, and comparison against new configurations (via 'diff') during a cold installation process:

# /.forward
# /.profile
# /etc/ftpd/ftpusers
# /etc/group
# /etc/hosts
# /etc/inetd.conf
# /etc/inittab
# /etc/nsswitch
# /etc/ntp.conf
# /etc/passwd
# /etc/profile
# /etc/rc.config.d/netconf
# /etc/rc.config.d/netdaemons
# /etc/rc.config.d/nfsconf
# /etc/resolv.conf
# /etc/sendmail.cf
# /etc/services
# /etc/shells
# /etc/shutdown.allow
# /var/adm/at/*.allow|deny
# /var/adm/cron/*.allow|deny
# /var/adm/fbackupfiles/*
# /var/adm/inetd.sec
# /var/spool/cron/crontabs/*
# /sbin/init.d/

Don't forget to add your volume group 'vgexport' mapfiles too.

Regards!

...JRF...