I am installing Oracle 8i, and the manual indicates that I need to create two mount points prior to installation. I am running Solaris 8 on a Sun 250. What commands would I use to create two mount points, u01 and u02, so they will be available during the Oracle installation process?

A mount point is simply a directory to mount a file system on.

Normally, /u01 and /u02 are directories created in / and then the file system is mounted on it to allow the space required for the software product.

# mkdir /u01
# mkdir /u02

Make sure you set the ownership and group to what is required.

I don't have enough space on the current disk. However, I have two other 17gig drives that are not being used. I can see them with the format command, but they are not visible with the df command. I guess this means that their partitions have not been assigned to a file system.

How can I create a file system (newfs command?) called u01 on my disk /dev/vol/c0t8d0s0 so I can use it as the mount point for my Oracle database?

Suggest if you are not the System Administrator, you get that person's help - unless this is a test system that doesn't matter if it gets messed up - then have fun learning.

Otherwise, here is a link that may help you from SunSolve

Normally (well, more to my experience), Oracle databases are set up with a volume manager of some sort. You state that A database can use a raw device - you would have to check that any database running on the system is not using it OR insure it isn't being used by swap (which may not show in a df command)