Difference: LocalPPEAccounts (8 vs. 9)

Package Checkout

Checking out packages from ATLAS SVN at CERN should work without problems. However, there are a few tricks to avoid needing to type your password all the time, in particular you need to setup your ~/.ssh/config file with the following configuration for svn.cern.ch:

Host svn.cern.ch svn
GSSAPIAuthentication yes
GSSAPIDelegateCredentials yes
PubkeyAuthentication yes
Protocol 2
ForwardX11 no
User graemes  # <--- Replace with your CERN AFS username, if it's different from your PPE unix account name

You will need to add your ssh public key to ~/.ssh/authorized_keys on lxplus at CERN.

You should now be able to use cmt co path/package or pkgco.py package and not be prompted for a password (personally, I like pkgco.py better as there is no need to specify the path to the package; see this documentation for the gory details).