[kongyw]

This tutorial is great. Wish I had read this earlier. That would have made my life much easier.

It is a bit puzzling though that the Upgrade Data backup onto DVD-RAM needs hscpe user. I have made such a backup as hscroot myself. In fact, it saved me from having to rebuild the HMC from scratch due to a defect in HMC 5.1.0 where the Critical Console Data backup restore corrupts the bootloader - I had numerous problem when upgrading from 5.1.0 to 5.2.1. Apparently, that is a fairly common problem - refer to the HMC 5.2.x cummulative fix MH00822 webpage. (Sorry, URL not allowed yet due to less than 5 posts).

In fact, I think backing up the Upgrade Data onto DVD-RAM should be part of best practice. Selecting DVD-RAM will actually backup the Upgrade Data to both the hard disk and DVD-RAM.

Thanks.
Yun-Wai Kong