From Network Appliance cases 144564 and 163254..
Running Oracle 8i on a RedHat Linux 6.2 client using a Network Appliance
Filer, you have to mount the NFS filesystem with the 'nolock' option.
Mounting the filesystem WITHOUT the 'nolock' option results in Oracle
failing to startup with a "can not mount data in exclusive mode" error.
We don't see this problem if Oracle 8i is run on local disks, or if Oracle
8i is run on a Sun Solaris 2.7 client using a Network Appliance Filer with
rw,hard,intr mount options.
Mount options used in a successful Oracle startup are rw,hard,intr,nolock.
RedHat Linux 6.2 kernel version is 2.2.14.
Closing old bugs for dead packages that have no maintainers. Please refile
against current packages/products if still relevant.