How to Solve Error's During Install of Single and Multiple Node OpenStack

How to Remove Packstack Answer File

Watch :- How to Install of OpenStack Using RDO in CentOS 7 Step by Step Procedure
https://itcloudnet.blogspot.in/2017/05/how-to-install-of-openstack-in-centos-7.html

Watch :- How to Install Openstack Using Devstack in All-In-One Single Machine on CentOS 7
https://itcloudnet.blogspot.in/2017/05/how-to-install-openstack-using-devstack.html

Watch :- Interview Questions and Answers on OpenStack for Fresher and Experience 
https://itcloudnet.blogspot.in/2017/05/interview-questions-and-answers-on.html

Error 1 :-  No Such File or Directory: /etc/pki/tls/certs/selfcert.crt

OR

Solution 1:-  Just edit the Packstack file ( # vi 09.05.17.conf) then Search for CONFIG_HORIZON_SSL=y  (remove y put n) Save and Quit File

Error 2 :-  Failed to Stop postfix.service: unit postfix.service not loaded

Need to Create a New File of Postfix

Solution 2 :-   cd  /etc/init.d/
                       touch postfix
                       chmod +x /etc/init.d/postfix
                 

Error 3 :-   No such file or directory: '~/packstackca/certs/192.168.0.102ssl_vnc.crt'

Solution 3 :-   ln -s /etc/pki/tls/certs/ssl_vnc.crt  /root/packstackca/certs/192.168.2.102ssl_vnc.crt

Error 4 :-   packstack --allinone issues
cat /var/tmp/packstack/20170504-024009-_PiZap/openstack-setup.log
2017-05-04 02:40:23::ERROR::run_setup::1027::root:: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/packstack/installer/run_setup.py", line 1019, in main
    raise Exception(output_messages.ERR_NO_ANSWER_FILE % confFile)
Exception: Error: Could not find file date +"%d.%m.%y".conf

Solution 4 :- 

Edit the Configuration file of environment
# vi or nano  /etc/environment
Search for LANG change to your prefer language see below image.

Solution 2 :- 

Solution 2 :-