Installation of AliEn
Make sure your installation alien and .alien directories are
clean. Not a bad idea to wipe out ~/.alien too.
If this machine will be used by
more than one person (or may be used by more than one person in the
future):
ln -s /bin/sh
If this points to dash:
rm /bin/sh
ln -s /bin/bash /bin/sh
This solves an Ubuntu-specific problem with alien
wget http://alien.cern.ch/alien-installer
chmod u+x alien-installer
(note if you already have an alien installer in this directory, the new
one will be named alien-installer.1 - be sure you run the latest
version!)
./alien-installer -install-dir $ALIEN
After you reach this step you should be able to test your alien
installation by setting up your grid environmental variables and then
getting a token. This can be done by "setstorageelementALICEDISK"
if you've used the aliases in the setup
file. You may be prompted to recompile parts of alien - this is
fine. But you should successfully get a token. If you can't
get a token, you will likely have problems connecting to the grid and
may have to recompile parts of ROOT and/or AliRoot.