Ubuntu Linux installer problems
Here is a screen shot of my problem in a Ubuntu installation. I give a pre-formatted ext3 drive as "/", but still it says at the bottom that there is no root "/". Why is that?

    Requires Free Membership to View

    Login

    When you register, my team of editors will also send you resources covering Linux administration and management; integration and interoperability between Linux, Windows and Unix; securing Linux and mixed-platform environments; and migrating to Linux.

    Cathleen A. Gagne, Senior Editorial Director

    By submitting your registration information to SearchEnterpriseLinux.com you agree to receive email communications from TechTarget and TechTarget partners. We encourage you to read our Privacy Policy which contains important disclosures about how we collect and use your registration and other information. If you reside outside of the United States, by submitting this registration information you consent to having your personal data transferred to and processed in the United States. Your use of SearchEnterpriseLinux.com is governed by our Terms of Use. You may contact us at webmaster@TechTarget.com.

If you are positive that there is a valid root file system on /dev/hdb2, then there is a way to bypass gparted's check. Before you run the installer type the following from a terminal: 

sudo vi /usr/lib/ubiquity/ubiquity/validation.py

Find the lines that say: 

if not root:
  result.add(MOUNTPOINT_NOROOT)

And change them to say: 

if not root:
  pass

Save and exit the file and run the installer. Please thank the good Ubuntu users of this thread. They are the ones who discovered the solution.

This was first published in May 2007