upgrading 10.20 to 11.00

[Jeff Hoevenaar_1]

When uprgrading the OS from 10.20 to 11.0 should I remove all ver 10.20
application software (i.e. Diskmirror, C/ANSI C, OnlineJFS, etc.) first and
then install the 11.00 version of the application. Or can I install the 11.00
version overtop of the 10.20 version.

Also, if I remove or replace the diskmirror software do I need to break the
mirror on my disks first?

[Cheryl Griffin]

Jeff,

There is no need to remove the application software. You first upgrade the operating system. Then upgrade the applications by using the "match what target has" option in swinstall. Only those applications installed on the 10.20 system will be upgraded.

For a complete set of upgrade instructions, be sure to check out: www.docs.hp.com. Follow the link to 11.00 Release Documentation, HP-UX 11.00 Operating System, then Installing and Updating HP-UX 10.x to 11.0.

[Peter Eisentraeger]

You must not remove any application but You must remmove all 10.x patches. This can be very hard to do. "Remove patch xxx before removing patch yyy". I did this only once. Then I preferred to cold install. (We had no hpux 11 Server for ignite then)

[Emil Velez]

I removed reference to all patches with the following command

swmodify -u PH[CKNS][OLES]_*.* PH[CKNS][OLES]_*

Please be careful with this one. I think it should unregister all patches on a system.

Good luck...