Error during bootstrap: An error has occurred during salt execution: unable to parse json.

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Environment

SUSE Manager 4.3

Situation

See the following error when bootstrapping SLES (SUSE Linux Enterprise Server) client from the WebUI:

In "/var/log/rhn/rhn_web_ui.log"

2024-05-08 15:59:10,529 [ajp-nio-0:0:0:0:0:0:0:1-8009-exec-4] ERROR com.suse.manager.webui.controllers.bootstrap.AbstractMinionBootstrapper - Error during bootstrap: An error has occurred during salt execution: unable to parse json.

In "/var/log/salt/api"

2024-05-09 16:18:25,771 [salt.client.ssh :1464][ERROR ][2311] An Exception occurred while executing state.apply: [Errno 13] Permission denied: '/var/tmp/.root_304c44_salt/running_data'

Resolution

1) Verify the .root_304c44_salt file permissions from the SUMA server:

:~ # /var/tmp/.root_304c44_salt # ll /var/tmp
total 16
drwxr-xr-x 1 root root 58 May 8 12:27 .root_304c44_salt

2) If the file permissions belong to the root user and group, change the ownership of the `.root_304c44_salt` file to salt:

:~ # chown -R salt:salt /var/tmp/.root_304c44_salt

3) After that, bootstrapping the client should succeed without the error being seen.

Cause

Incorrect file permissions.

Additional Information

The bootstrapping process can be monitored with the command:

:~ # tail -f /var/log/rhn/rhn_web_ui.log

Disclaimer

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