Hi Mark, 
it looks like there's a python problem in squeeze, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=591606 .  easy_install of rosinstall is tested and known working on lenny. 

If you can't get easy_install working you can find rosinstall as a tarball on pypi http://pypi.python.org/pypi?%3Aaction=search&term=rosinstall&submit=search

Tully

On Fri, Aug 13, 2010 at 9:05 AM, Mark Worsdall <code.ros.org@wizdom.org.uk> wrote:
Hi,

I have Debian and Unbuntu is just not going to happen for me, so am
doing the svn install and compile method for cturtle and the first
problem was no rosinstall.

I tried easy_install but that just err'd
easy_install
Traceback (most recent call last):
  File "/usr/bin/easy_install", line 9, in <module>
    load_entry_point('distribute==0.6.14', 'console_scripts',
'easy_install')()
  File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 305, in
load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 2244,
in load_entry_point
    return ep.load()
  File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 1954,
in load
    entry = __import__(self.module_name, globals(),globals(),
['__name__'])
ValueError: bad marshal data


Anyway, luckily I had a rosinstall laying around and used that
successfully.

I am doing a blog so others can have a go with ROS to and the
instructions will not be using the easy_install method to get going
(tried pip too). Hence asking do you have a direct perm link for
rosinstall?

M.
--
Mark Worsdall
http://www.shadowrobot.com/  need a hand??
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--
Tully Foote
Systems Engineer
Willow Garage, Inc.
tfoote@willowgarage.com
(650) 475-2827