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Thread: Over My Head!!!

  1. #1
    Join Date
    Apr 2009
    Prospect Heights, IL
    Ubuntu 10.04 Lucid Lynx

    Over My Head!!!

    I'm trying to install a Brother MFC-790cw. According to Brother's support instructions, I must prep Ubuntu and install from the command line. This is what I did:
    ??????@??????-desktop:~$ sudo aa-complain cupsd
    [sudo] password for linda:
    Setting /etc/apparmor.d/usr.sbin.cupsd to complain mode.
    ??????@??????-desktop:~$ sudo mkdir /usr/share/cups/model
    mkdir: cannot create directory `/usr/share/cups/model': File exists
    ??????@??????-desktop:~$ psutils
    bash: psutils: command not found
    ??????@??????-desktop:~$ ln -s /etc/init.d/cups /etc/init.d/lpd
    ln: creating symbolic link `/etc/init.d/lpd': Permission denied
    ??????@??????-desktop:~$ mkdir /var/spool/lpd
    mkdir: cannot create directory `/var/spool/lpd': Permission denied
    ??????@??????-desktop:~$ sane-utils
    bash: sane-utils: command not found

    the commands are obviously ineffectual. Is this a problem with permission? as I recall I only set one permission. Could this be a problem with the way I'm reading Brother's instructions?:

    1. "sudo aa-complain cupsd" command is required before the installation.
    2. "sudo mkdir /usr/share/cups/model" command (as it is) is required before the installation.

    Requirement (superuser authorization is required to run the command)
    "mkdir /var/spool/lpd" command is required if the folder does not exist.

  2. #2
    Join Date
    Dec 2006
    Ubuntu Jaunty Jackalope (testing)

    Re: Over My Head!!!

    You just need to install the programs you're trying to run,

    you can get them in synaptic, or just copy-paste
    sudo apt-get install psutils sane-utils
    If you're ever in doubt, search through synaptic, or from a command line "apt-cache search psutils" (or whatever other program you need)

    On a side note:
    ln -s /etc/init.d/cups /etc/init.d/lpd
    mkdir /var/spool/lpd

    Probably require root permission, i.e. sudo, i.e.
    sudo ln -s /etc/init.d/cups /etc/init.d/lpd
    sudo mkdir /var/spool/lpd

    If the "mkdir" commands tell you the file exists, than no worries. This command just makes a folder, so if the folder already exists, no problem. And just so you know, the "ln -s" command makes a symbolic link, which is like a shortcut (it basically allows you to give files different names, and link to them from other directories for convenience)

    When they say things like "superuser authorization is required, blah blah blah" they mean that you need root (administrator) permission, and the way to run a command as root is to prepend "sudo"

    Most things outside of your home directory (/home/username) are owned by root or some other user, so if you want to modify them, you'll need root permission.

    If you're ever curious about a command, try "man commandname" from the command line to get more info about it (q to quit back to prompt)

    I would strongly suggest a basic command line tutorial as well, it's not generally necesary, but often a great way to get things done and investigate problems, you might want to start here in the ubuntu documentation tutorial on terminal handling.
    Sharing Wifi Is Caring Wifi {o,o} Ubuntu Community Docs..
    O RLY?

  3. #3
    Join Date
    Jul 2007
    Magic City of the Plains
    Xubuntu 14.10 Utopic Unicorn

    Re: Over My Head!!!

    If you're using Gnome, check System, Administration, Printing, to see if your printer's recognized.

  4. #4
    Join Date
    Oct 2008
    Ubuntu Development Release

    Re: Over My Head!!!

    permission denied means you need sudo in front of the command

    Edit: Wow, several answers at once. Good thing too, those answers are much better than mine. If you ask they will come.
    Last edited by duanedesign; April 24th, 2009 at 04:09 AM.


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