I now have a new HDD installed and I also some 5.3 install media.
I think that the ebay listing (that they ran 5.3) must really have been quite bogus based on something I found out now.
I got the system to boot cd 1 and it installed and it was all good. You can choose between gnome/kde/cde, I chose CDE just to keep things simple.
After reboot I get operator panel status: 9411 and sms message 20ee000b, which is something like os not found or so I think. The AIX installation procedure changes your sms config so that it boots the hdd and only the hdd on reboot. So I rebooted the machine and set it to boot CD again. Its a pain because the boot process takes 8 minutes before you get to the bios banner.
I looked on the internet why this error can occur, and it seems a big reason can be firmware too old to run the OS. You can't seem to list the firmware version number from the open firmware OK prompt, you either have to attach a null modem to the service processor on the back, or boot AIX and use lsmcode utility.
The aix install cd limited function maintenance shell doesn't even have ls, but it does have cd and lsdev. So basically I had to operate the system blind and I gave up on that.
Instead of going down to the garage to get a system with a db9 port to access the service processor, I booted the CD install disk and used normal maintenance mode to load the installed volume group. This gives me usual command lines tools in ksh.
The OS is installed and it has X11R6 and everything. So I found it odd it wouldn't run. Can't start X11 though but I can run normal command line apps so I ran lsmcode and my firmware is version 3F040326, which based on this page:
ftp://ftp.software.ibm.com/software/ser ... C3F_CD.htm
indicates that I can only run 5.1 and 5.3 requires the next version. (this guy:
http://unix.ittoolbox.com/groups/techni ... 6#M1480166
seems to think the next version after that is the minimum.).
Well anyway I will have to upgrade the firmware version somehow. Not sure how I'm going to achieve that and its 11:17pm with work tomorrow, so this chapter ends early.
[EDIT]
Also yes, I confirmed that even if the HDD is working and not broken, it will still not show up in sms and so on unless it is marked in an "active" state, which the installer does for you. But even though I have 2 hdds plugged in, only 1 was available for installation, so I assume that the original it came with really was a dud as well. Now I'm thinking it would have been better to just 5.1 install media. I only had 5.3 in my head because of the (bogus) ebay description.
[EDIT 2]
The only benefits (besides generally newer software) that I can see 5.3 having over 5.1 are some JFS2 improvements, and supporting NFS v4. I'm currently the highest bidder on some 5.1L media