you should enable the logging by provide devstack proper configuration for logging, before execute stack.sh script. In short:

$ cd devstack
$ cp samples/local.conf .
$ grep LOGFILE local.conf
# be configured to additionally log to a file by setting ``LOGFILE`` to the full
LOGFILE=$DEST/logs/stack.sh.log

Make sure this line: "LOGFILE=$DEST/logs/stack.sh.log" is uncommented. Log file will be created in /opt/stack/logs/

Before doing stack.sh, inside devstack create localrc file with content as below

[[local|localrc]] DEST=$HOME/stack SERVICE_DIR=$DEST/status DATA_DIR=$DEST/data LOGFILE=$DEST/logs/stack.sh.log LOGDIR=$DEST/logs

Then do stack.sh with non sudo user account

devstack pulls data from git so it may have taken so long because of network issues or because the computer you installed on has little resources available.

The local.conf is commented with quite a bit of info on logging option. Below is an excerpt from the sample local.conf file.

# By default ``stack.sh`` output only goes to the terminal where it runs.  It can
# be configured to additionally log to a file by setting ``LOGFILE`` to the full
# path of the destination log file.  A timestamp will be appended to the given name.
LOGFILE=$DEST/logs/stack.sh.log

http://docs.openstack.org/developer/d... https://github.com/openstack-dev/devs...