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Plone UnifiedInstaller vs. Old zc.buildout eggs

by Chris Shenton — last modified Oct 01, 2008 12:47 AM

Repeated use of evolving versions of the UnifiedInstaller have different zc.buildout egg version requirements.

I've used the Plone Unified installer several times over the past months to create new sites.  It's version has changed and thus some of the requirements it uses.  But if I tell it to re-use the old Python, it can't find the new required zc.buildout egg version:

root@Boqueria:Plone-3.1.5.1-ex-r2-UnifiedInstaller# ./install.sh \
  --target=/usr/local/zope \
  --with-python=/usr/local/zope/Python-2.4/bin/python \
  --password=Fnork \
  --instance=newinstance \
  zeo
Testing /usr/local/zope/Python-2.4/bin/python for Zope/Plone requirements....
/usr/local/zope/Python-2.4/bin/python looks OK. We'll try to use it.
Found existing buildout cache at /usr/local/zope/buildout-cache; skipping step.
Running buildout
Traceback (most recent call last):
  File "bin/buildout", line 9, in ?
    import zc.buildout.buildout
ImportError: No module named zc.buildout.buildout

Parts of the install are missing. Buildout must have failed. Aborting.

/usr/local/zope/buildout-cache contains:
 zc.buildout-1.0.3-py2.4.egg
 zc.buildout-1.1.0-py2.4.egg

from old UnifiedInstaller installations. Now we need to add the 1.1.1 verison:

PYTHONPATH=/usr/local/zope/buildout-cache/eggs \
  /usr/local/zope/Python-2.4/bin/easy_install \
  --install-dir /usr/local/zope/buildout-cache/eggs \
  zc.buildout==1.1.1

This UnifiedInstaller seems to want a 'zeo' user to run ZEO, but didn't create it for me, so do it manually, however your OS prefers; lock out the account of course.

 

Since the previous abortive install didn't finish, I removed the partially-crated instance directory and then re-ran the Unified Installer.

 

Then you can tweak the new instance's buildout.cfg -- e.g., to change the ports -- and re-run buildout.

 

 

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