backup users

[Daniel]

Heloo everyone!

Could you tell me, how i can transfer user accounts from one instance to another?

im using eucalyptus.2 on first and second instances.

i was trying to use this commands 

  tar -zxvf backup.tar.g

  cd backup

# restoring mysql
mysql -u root edxapp < backup.sql

# cleaning up mongo db and restoring
mongo edxapp --eval "db.dropDatabase()"
mongorestore dump/

But after this, im getting an error 500. 

Best regards.