drtv@Narayana-1440:~/git$ cd evolution-mapi/po
drtv@Narayana-1440:~/git/evolution-mapi/po$ git up
updating an unborn branch with changes added to the index
drtv@Narayana-1440:~/git/evolution-mapi/po$ git branch
drtv@Narayana-1440:~/git/evolution-mapi/po$ git branch -a
remotes/origin/gal-ldap
remotes/origin/gnome-2-26
remotes/origin/gnome-2-28
remotes/origin/master
remotes/origin/native-gal
drtv@Narayana-1440:~/git/evolution-mapi/po$ git checkout --track origin/master
fatal: reference is not a tree: origin/master
drtv@Narayana-1440:~/git/evolution-mapi/po$