I tried to install SL6 x86_64 on a system already successfully running 64
-bit Fedora 13,
error happens soon after bootup, before reaching any user interaction rel
ated to the
installer.

Computer is Intel Xeon dual quad-core SuperMicro.

No (easy) way to get screenshot, photograph available temporarily at:  

http://www.gg411.com/IMG_20110220_224246.jpg.  Oops, now I see I can atta
ch a file, I'll attach 
a photo of the error ...

Error shows a Python stack trace with this stack (partial info only):

  * /usr/bin/anaconda
  * /usr/lib/anaconda/instdata.py, __init__
  * /usr/lib/anaconda/instdata.py, reset
  * /usr/lib/anaconda/network.py, __init__
  * /usr/lib/anaconda/isys.py, getDeviceProperties
  * /usr/lib/python2.6/site-packages/dbus/proxies.py, __call__
  * /usr/lib/python2.6/site-packages/dbus/proxies.py, __call__ (again)
  * /usr/lib/python2.6/site-packages/dbux/connections.py, call_blocking
    * something about "interface 'org.freedesktop.NetworkManager' isn't e
xposed (or may not exist), 
can't access property 'Interface'"

I can get more info about computer from current Fedora-13 installation (e
.g., "cat /proc/cpuinfo" 
or "cat /proc/net/...."), let me know what might help.  I'm not sure whet
her this is a RHEL6 issue or 
specifically an SL6 issue.

---

Would like info on workarounds as well.