Fixing global add in linux root folder #1029

[lucaskatayama]

Summary
Fixing yarn global add being installed in root folder described in issue #1029
.
Users can't access /root/.yarn-* .
Using /usr/local/libinstead like npm modules (/usr/local/lib/node_modules)
eg:

yarn global add react-native-cli
/usr/local/bin/react-native -> ../lib/.yarn-config/global/node_modules/.bin/react-native*

Reference

• Issue #1029