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Cannot connect ros master when run with sudo

master
sudo

asked 2016-08-18 04:11:09 -0500

xyz
16 ●3 ●3 ●4

updated 2016-08-18 12:17:26 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

As the title, I can run well a bag normally, but when I add sudo, it says

[FATAL] [1471510924.482740850]: ROS_MASTER_URI is not defined in the environment.

which is the same as no master exists. But I really have to add sudo to open a usb camera.

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answered 2016-08-18 04:25:34 -0500

mgruhler

12390 ●32 ●193 ●173 https://github.com/mgruhler

Check out the following answers:

Reason why what you want to do is not working: http://answers.ros.org/question/19424...

Possible workaround for exact same usecase you have: http://answers.ros.org/question/16524...

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I'd actually suggest not to run anything as root (so don't use sudo). In most cases it's not necessary, and only the access rights of the user need to be changed. See Rosrun as super user fi (but there are many more).

gvdhoorn ( 2016-08-18 12:17:02 -0500 )edit

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Asked: 2016-08-18 04:11:09 -0500

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Last updated: Aug 18 '16

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Cannot connect ros master when run with sudo