I've been working on installing SCO OpenServer 6.0.0 and need to install a second hard drive onto the system. I have not done this too often (5 years ago for the same client) and I can not write the "divvy table" to the system (I/O Error.) Where can I find detail step by step instructions?

I did this a couple of weeks ago, and as I recall, all I did was run 'mkdev hd'.
It complained that hardware was automatically recognized, and then went directly into divvy.

That just it! Divvy does not send the table to the second RAID diskete. It ends with a "I/O" error. What next?

Has the second logical disk been initialized, as opposed to just being defined.

- Initialised the hard drives (RAID controller)
- Defined the RAID 1 disk (ServeRAID 9 set up boot CD)
- Second hard drive shows up at the "mkdev hd" screens
- Fdisk partitioned (completely.)

- During the Divvy, set up a entry for the filesysystem, type and start/ending "blocks."

At time I need to write the "Divvy" table, the system returns an 'I/O" error and no "divvy" table is on the drive (when I try every time after.)

I'm I missing a "step?"

I am assuming in fdisk that you chose option 3, use entire disk for unix.
Did you check for bad tracks? If you did not, try to and see if you can do a destructive check.

Divvy then asks how many files systems do you want ?
Then asks if you want to make any changes?
Are you at this point entering additional filesystems, or just changing the size of the file systems that were automatically created?
Do any of the start/end addresses overlap?

As an alternative, why not try running divvy using all the defaults, and answering no to making any changes, and see if this setup terminates normally. You can always go back and change it afterwards.