How to set root password on Yocto / Poky image?

问题:

I am building an image with Yocto/Poky release Daisy 1.6.3.
What is the correct way or config file where to set the root password? The default password is empty and I can't find a place where to specify it.

回答1:

Here is what you have to do in your recipe.

inherit extrausers
EXTRA_USERS_PARAMS = "usermod -P p@ssw0rd root;"

where p@ssw0rd is the password you want root user to have.

This link may help you.

As "debug-tweaks"'s goal is to set root's password empty, you must remove it from your EXTRA_IMAGE_FEATURES.

回答2:

As of Poky 2.1.2; to set the root password the following instructions need to be added to local.conf:

INHERIT += "extrausers"
EXTRA_USERS_PARAMS = "usermod -P p@ssw0rd root;"

No need to remove debug-tweaks

回答3:

Here is method I used which does not use the -P switch on the usermod command. You must use the following form:

EXTRA_USERS_PARAMS = "usermod -p $(openssl passwd p@ssw0rd) root;"

The usermod -P command does not work in my version of linux.

See How do i change the root password in the Yocto dora bitbake system?

回答4:

Add the below linw at your conf/local.conf file

INHERIT += "extrausers"
EXTRA_USERS_PARAMS = "usermod -P urpassword root;"