If you are installing using the CD or DVD, mount the installation media.
The location of the mount command is site-specific and may differ from the instructions shown here. If you cannot mount the installation media in the appropriate drive using the path shown, check your operating system documentation or contact your system administrator.
Log out, log in as root, and issue:
mount -F cdfs -o ro device_name /mnt/cdrom
Then, log out as root and log in again as “sybase.”
mount -v 'cdrfs' -r device_name /mnt/cdrom
# mount -t iso9660 /dev/cdrom /mnt/cdrom