Install debian from resuce v2: perl conflict

Hi,

I had a usb-stick going bad and now have to reinstall debian on my pogoplug v2. I have the rescue system v2 installed, but following the instructions from here http://projects.doozan.com/debian/ I get this error:

rescue:/tmp# ./kirkwood.debian-wheezy.sh

Your perl subsystem does not have support for $ENV{}
and must be disabled for debootstrap to work
Please disable perl by running the following command

chmod -x /usr/bin/perl

After perl is disabled, you can re-run this script.
To re-enable perl after installation, run:

chmod +x /usr/bin/perl

Installation aborted.

Mounting the resuce system as writable and executing the suggested solution doesn't solve the problem.

Any ideas how to get the installer to work on the rescue system? Should I update my rescue system first?