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Thread: su Authentication failed...help

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  1. #1
    Join Date
    Nov 2012
    Beans
    13

    su Authentication failed...help

    I am new to linux/ubuntu...

    I am trying to use a command to obtain information on internal devices on the PCI bus.
    /sbin/lspci

    before I enter that command in the terminal, I enter the { su } command. I get a return asking to enter a password, yet I can't actually see it in the terminal but I type it anyways. I am assuming its the same password i use to login, since i can't remember setting any other passwords. But i get a return saying{ su: Authentication failure}, so i am assuming thats not the password. From what i understand su is a command to switch to the root (admin) user, there aren't any other users on this pc though. This is all very confusing and im not sure how to handle this situation. I would greatly appreciate any help i can get, as i am trying to give my self a crash course on using Linux.

  2. #2
    Join Date
    Feb 2007
    Location
    Romania
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: su Authentication failed...help

    In Ubuntu you have to use sudo:
    Code:
    sudo lspci
    See: community/RootSudo

  3. #3
    Join Date
    Nov 2012
    Beans
    13

    Re: su Authentication failed...help

    Thanks, i didn't realized the article i was reading was on centOS 5 not ubuntu.

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