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Thread: Tmpfs File System and unmount problem

  1. #1
    Join Date
    Dec 2011
    Beans
    631
    Distro
    Ubuntu 12.04 Precise Pangolin

    Tmpfs File System and unmount problem

    Hi:

    I'm trying to help a friend of mine that's running Ubuntu 12.04.

    His System specs:
    (X)ubuntu 12.04, heavily customized XFCE desktop, LightDM with KDE greeter, fully updated until a few days ago. Running on an SSD, using open-source graphics drivers.

    Having trouble gettin tmpfs to work properly if it can be lined with pam_ mount to give automatic mountaing/unmounting of the HOME a root on login/logout?

    He explained to me that logging thru the graphical interface causes the problem, logging in thru virtual terminal doesn't-
    He tried this cmd:
    Code:
    mount -t tmpfs -o uid=1000,gid=1000,size=100m,mode=0700 none /home/user (at this point I logged in as myself) umount /home/user
    This command was used in hope that it would help-
    Still the problem exist's...
    So I told him from what I have learned that:
    Some desktops also use fuse mounts within the users home directory. So a "mount" listing might show these hanging around as well, and that too would prevent a dismount.

    He tried a '(think) fuser mount point when it hangs-
    Code:
    mount -t tmpfs -o size=100m,uid=[testuser-uid],gid=[testuser-gid],mode=0700 none /home/testuser
    And this also-
    Code:
    Logout as root, and log in as testuser.
    Logout as testuser, log in as root.
    Attempt to unmount /home/testuser - this fails for me with 'Device is busy'
    My friend Rob is using ' Winbind' could that be the problem?

    This is a bit beyond me now and I am not sure how to rectify this-
    Please give me a few suggestions.....I'm not sure what to try
    "A morning w/o coffee is like something w/o something else"


    Voyager 12.04 Xubuntu based on AMD Phenom Quad Core & CentOS on Sony Vaio


  2. #2
    Join Date
    Dec 2011
    Beans
    631
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Tmpfs File System and unmount problem

    Anyone?
    "A morning w/o coffee is like something w/o something else"


    Voyager 12.04 Xubuntu based on AMD Phenom Quad Core & CentOS on Sony Vaio


  3. #3
    Join Date
    Dec 2011
    Beans
    631
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Tmpfs File System and unmount problem

    It's been well over 4 weeks since I posted this thread--
    Please, does anyone know how I can help my friend fix this?
    "A morning w/o coffee is like something w/o something else"


    Voyager 12.04 Xubuntu based on AMD Phenom Quad Core & CentOS on Sony Vaio


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