A profile must contain the following:
The install_type profile keyword as the first entry
One keyword per line
The root_device keyword if the systems that are being upgraded by the profile contain more than one root (/) file system that can be upgraded
A profile can contain the following:
Any text that is included after the # symbol on a line is treated by the JumpStart program as commented text. If a line begins with the # symbol, the entire line is treated as a comment.
One or more blank lines