[SOLVED] LTSP, “error: LTSP client installation ended abnormally”

I wanted to test ltsp in my Ubuntu 10.04 Lucid Lynx and installed ltsp-server-standalone. Then I set up ltsp-client by using

sudo ltsp-build-client

and despite of getting no error messages during installing and configuring, I got this error:

error: LTSP client installation ended abnormally

and it stopped. I searched around and found the solution here.
The solution was to use the following set of commands instead of sudo ltsp-build-client

sudo -s
su -

This is probably a bug and hope it is fixed in the newer release.