/usr/local/lib/python2.6/dist-packages/joblib/parallel.py:40: UserWarning: [Errno 30] Read-only file system. joblib will operate in serial mode

Question

Anyone knows what this error is and how to fix it?
I've already tried to
chmod -R 777 /usr/local/python2.6/dist-packages/joblib but with no luck.

Answer 1

/dev/shm was mounted as readonly on ubuntu 10.04

$ mount | grep shm
tmpfs on /dev/shm type tmpfs (ro)

This fixed the problem:

sudo mount -v -o remount,rw /dev/shm