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Thread: Augh... Automatic shutdown, at wit's end!

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  1. #1

    Default Augh... Automatic shutdown, at wit's end!

    Right... after having far too many problems with other brown-coloured distros, I moved my MythTV box to SuSE (what all the other machines here use).

    Everything is working, EXCEPT for one thing: automatic idle shutdown.

    I cannot get MythWelcome to shut down the machine automatically (choosing shutdown now from it's menu does work). The log shows
    sudo: sorry, a password is required to run sudo (sudo -n)
    or the infamous "no tty and no askpass". (plain sudo)

    I have added /sbin/shutdown to the sudoers file, and I can run sudo /sbin/shutdown -h now from the terminal and shutdown without a password... but sudo will NOT run from mythtv.

    I've even tried adding a special exception to the sudoers file, "Defaults !requiretty" with no luck.

    This is a dedicated frontend/backend with no user access (doesn't boot a desktop manager; goes straight to Mythtv) so I'm no too worried about potential security; the machine is on a LAN and cannot be accessed from the WAN side.

    What can I do?

  2. #2
    Join Date
    Jun 2008
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    Netherlands
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    Default Re: Augh... Automatic shutdown, at wit's end!

    I do not know very much about this MythTV, so this is only a guess. Is the user running he MythTV process the same as the user you use to log in with and test all these sudu shutdown things?
    Henk van Velden

  3. #3

    Default Re: Augh... Automatic shutdown, at wit's end!

    Yep... The box is doing autologin as me and firing up mythfrontend.
    I'll double-check to be sure.

  4. #4

    Default Re: Augh... Automatic shutdown, at wit's end!

    A-HA. That was, and wasn't the cause. The MythWelcome and Mythfrontend processes were running under my UID/GID, but the backend process was NOT. (it was trying to use a nonexistent UID.)
    I had assumed that the frontend was in control of the shutdown, since it displays the countdown timer and interface.

    A quick tweak to /etc/init.d/mythbackend and we're golden!

    That's what I love about Linux; there are a million ways to solve a problem, but after you try ~10 of them, you find a one-liner that could have saved you a day.

  5. #5
    Join Date
    Jun 2008
    Location
    Netherlands
    Posts
    25,378

    Default Re: Augh... Automatic shutdown, at wit's end!

    You are welcome. I have the habit of not running any services to others (or even myself) from my own user. Better nmake a new user for the web-site, non-root management functions, etc.etc.
    I thought that such a good practice mightbe applicable here. And it is.
    Henk van Velden

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