Install.sh chown: cannot access `/var/aegir/{.,*}[!.]*': No such file or directory

Using the install script (v1.8) on Ubuntu 9.04
While on the wizard to install site, i got an error saying:

Drupal sites directory is not writable by the provisioning script

When i looked at the content of /var/aegir, not everything was owned by user aegir
Issuing the command chown -hR aegir:aegir /var/aegir/ solved the problem
I went back to the output of the install script and found this :
(...)
Making settings.php writable
chown: cannot access `/var/aegir/{.,*}[!.]*': No such file or directory
(...)

Maybe the problem is in the following line (of the install script) ?

chown -R $AEGIR_USER:$AEGIR_USER $AEGIR_HOME/{.,*}[!.]*

By the way, Thanks for this superb script ! and obviously for your efforts on aegir !