FAQ:How do I set or change the root password

Q: How do I set / change the root password?

A: Use the extrausers class to set the password. In your image recipe:

inherit extrausers
EXTRA_USERS_PARAMS = "usermod -P 1876*18 root;"

This sets the root password to "1876*18". If you prefer to do this in local.conf or your distro configuration, you'll need to change the first line to INHERIT += "extrausers".

WARNING: if you are hardcoding a root password for a production image deployed to multiple devices, consider carefully the ramifications of doing so before proceeding.

Q: How do I add users?

A: Use the extrausers class to and the user and set the password. In your image recipe:

inherit extrausers
EXTRA_USERS_PARAMS = "useradd -P 2015*08 myUser;"

This adds the user myUser and sets the password to "2015*08". As above, if you prefer to do this in local.conf or your distro configuration, you'll need to change the first line to INHERIT += "extrausers".