[Wolves] installing plone 4.5.1 on ubuntu issue

[Barry W]

I'm trying to install Plone 4.5.1 on an Ubuntu 11.04 box. When I run
./install.sh standalone I get the error "Note: gnu patch program is
required for the install. Exiting now."

Any idea what's going on here?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.lug.org.uk/pipermail/wolves/attachments/20120607/9f3ad6ec/attachment.htm>