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su authentication failed

asked 2018-05-03 02:32:20 -0500

prat732 gravatar image

trying to install program from terminal, when i type su - press enter , the enter the password it says "su authentication failed"

Using fedora 28 ... i am new to linux, program i was trying to install when the error came "VLC" .

Any help would be appreciated. Was also attacting the screenshot but got message that >60 points required.

Am trying to solve one problem at a time in linux, this is one of many problems


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If you want to define a root password (to use su -): sudo -i, then passwd (or sudo passwd may also work). sudo always asks for the user password.

florian gravatar imageflorian ( 2018-05-03 10:48:18 -0500 )edit

thanks appreciated

prat732 gravatar imageprat732 ( 2018-05-15 20:10:53 -0500 )edit

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answered 2018-05-03 04:13:10 -0500

nmenetrier gravatar image

If your user is in the sudoers group, you can run the "sudo su -" command and then type your own password. If you are not in the sudoers group, You have to type your correct root password after typing the "su -" command.

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thnx it did worked for me...user was in sudoers group....

prat732 gravatar imageprat732 ( 2018-05-03 06:08:51 -0500 )edit

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Asked: 2018-05-03 02:32:20 -0500

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Last updated: May 03 '18