11.11 32 bit upgrade to 64 bit

[Scott Lindstrom_2]

I have searched the archives but haven't found this scenario:

We have a box running the 32 bit version on 11.11. We'd like to upgrade it to 64 bit. What is the easiest way?

We tried making a make_tape_recovery tape and booting from that, thinking that it would let us switch to 64 bit. But we couldn't find an options for that.

Any ideas?

Scott

[Patrick Wallek · Accepted solution]

First, this will only work if the machine you are installing on supports 64-bit HP-UX.

There are 2 ways to do this. Do an actual upgrade to 64-bit.

Second, and my personal preference, do a clean installation of 64-bit HP-UX. Boot from the installation CD, and just follow the prompts. If your machine supports the 64-bit version, the you will be able to choose 32-bit or 64-bit installation.

[John Poff]

Hi,

I don't know about 11.11, but we installed 11.00 on a K box this summer and we accidentally built it with 32-bit instead of 64-bit. One of our guys spent a couple of days trying to get it upgraded to 64-bit, and finally he just had to give up and do a cold install as 64-bit.

JP

[Martin Johnson]

It is cleaner (and quicker) to do a cold install and apply the appropriate patches than to upgrade and reinstall the appropriate patches.

HTH
Marty

[A. Clay Stephenson]

I've done the 32 to 64-bit 11.11 upgrade several times and it takes about two hours toi complete BUT if you installed the OS with default sizes for / and /stand, it's probably going to fail. I always oversize those LVOL's by 50-60% for this reason.

[Scott Lindstrom_2]

Thanks for the info.

Now I need to find out what files need to be saved and restored across a clean install. I know I saw one post about that; I just need to find it.

Scott

[James R. Ferguson]

Hi Scott:

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/

...and don't forget to add your volume group's 'vgexport' mapfiles too.

Regards!

...JRF...

[doug hosking]

Also be sure to check the firmware revisions on your system. In some cases the hardware is capable of running 64-bit but the firmware may need to be upgraded before you can actually do it. Also beware if you have any EISA cards on the system. (You don't say what model you have, so I don't know how likely that is.)

[Domenico_5]

hi

scott in add if you upgrade server you must control if your model is presenten in /etc/.supported_bits.

if you server support 64 but it isn't present in .supported_bits when upgrade recompile kernel, the server go in hang!!!



regards