Messages

1

General Support / Re: Mouse Dead Zone - Invisible cinnamon-screensaver window in middle of screen.

« on: December 01, 2015, 03:25:24 PM »

Nobody?

Bueller?

2

General Support / Mouse Dead Zone - Invisible cinnamon-screensaver window in middle of screen.

« on: October 02, 2015, 09:57:28 AM »

This is rather odd.  We were getting reports of students unable to click their mouse pointer in certain areas of the screen.

Further investigation reveals that this is an empty, invisible window named "cinnamon-screensaver" using xwininfo.  Not quite sure how to approach this, but we would prefer a surgical fix to a brute force, nuke-it-from-orbit approach.

I somewhat suspect this may have something to do with saved session data, and something autostarting, but so far have not found the solution.

I CAN tell you, that removing cinnamon-screensaver is NOT the fix.  The cinnamon GUI is NOT happy without it.

3

General Support / apt-get dist-upgrade resultins in rror "an error ccurred while mounting /ro

« on: April 15, 2015, 01:12:39 PM »

Not sure what package is causing this but in preparing our 2.x master for reimaging this summer I grabbed all updates. 

On reboot I get

"an error occurred while mounting /ro"

"Press S to skip mounting or M for manual recovery"

4

General Support / Re: Cannot update google-chrome-stable on 1.4

« on: April 15, 2015, 01:08:23 PM »

I ended up moving /opt to /home/opt and replacing /opt with a symlink to /home/opt.  Same treatment for /var/cache.  moved to /home/cache.

5

General Discussion / Re: SBAC and 12.04

« on: February 04, 2015, 11:43:32 AM »

Awesome!  Thanks Jim!

6

General Discussion / SBAC and 12.04

« on: January 28, 2015, 09:32:44 AM »

Is secure-browser-ca going to be added to the 12.04 ubermix repo?  Is this something I can help with?

7

General Discussion / Re: SBAC and 14.04

« on: January 27, 2015, 04:03:33 PM »

Is this going to be available in the 12.04 repo as well?

8

General Discussion / Re: SBAC and 14.04

« on: January 08, 2015, 12:05:52 PM »

FWIW, this works in our mixed 1.04/2.11 environment

this is the update.sh script fragment.

if ! apt-cache policy sbac | grep -v "6.3-1"
then
        echo "20" ; sleep 1
        echo "Installing new SBAC browser" ; sleep 1

        if grep -i "ubermix 2" /etc/lsb-release
        then
                echo "Installing 32 bit libraries"
                apt-get install libgtk2.0-0:i386 libstdc++6:i386 libasound2:i386 libdbus-glib-1-2:i386 libxt6:i386 libncurses5:i386 sox:i386 -y
        fi

        wget -N $WEBSERVER/sbac_6.3-1_i386.deb
        dpkg -i sbac_6.3-1_i386.deb
fi

9

General Support / Cannot update google-chrome-stable on 1.4

« on: December 29, 2014, 01:24:10 PM »

We plan on re-imaging with 2.x this summer, but need to get our current 1.4 units updated with the latest firefox and especially chrome, but the update fails with insufficient disk space.  We would obviously prefer to use the update script and not have to go touch 700 devices...

Any thoughts?  Tricks?

10

How-to / Re: Mounting domain users network home folders OR automounting network share

« on: October 14, 2014, 04:47:09 PM »

autofs may also be your friend here...

In a shared environment it automounts the homedir via nfs/smb or what ever protocol is specified in the automount entry.

Are your kids logging in as themselves or are the netbooks logging in as "user"?

If the former, while it takes more work and understanding, having the system automount on login is pretty slick.

you don;t have to use NFS, you could use smb/cifs if your files are on windows servers.

http://askubuntu.com/questions/15498/how-to-setup-automount-autofs

11

How-to / Adding items to user's favorites

« on: October 14, 2014, 04:41:18 PM »

Been hunting for a clean way to script the maintenance of the launcher's "Favorites" panel...

Ideally I could add, remove, or modify it's contents via the commandline.

So far the only things I've found involve .desktop files.  Looking for a clean way to do this vi gsettings or whatever the best tool might be.

They are currently saved as directories under .gconf/desktop/unity/launcher/favorites.  each directory has it's own %gconf.xml file containing settings for the directory (if it's a container) or the link (contains elements fro mkthe .desktop filespec.

Thanks!

12

General Support / Incorporating options in /etc/default/grub

« on: July 16, 2014, 01:16:02 PM »

Running into an option on a group of systems that erroneously report a second display as connected (LVDS-1)

Was able to fix it in /etc/default/grub with

GRUB_CMDLINE_LINUX="video=LVDS-1:d"

to disable this monitor.

ran update-grub, which then brought us to the "missing aufs" issue.  Tried the solution mentioned in the forum, and the above changes are gone.

Is there a better way to do this, ideally via the update.sh script?  I had initially tried using lshw information, but it was a bit problematic to identify the hardware and lshw is too slow.  xrandr --ouput LVDS1 --off works, but will break all the netbooks and any laptop running ubermix, so we have to be able to identify the hardware.

13

General Support / Re: Push out the new SBAC Secure Browser

« on: April 08, 2014, 10:15:41 AM »

Have you tested the text to speech functionality yet?

I've been unable to get it to work.

14

Q&A / Re: Setting default launcher theme and orientation - system-wide for all users.

« on: February 24, 2014, 12:57:34 PM »

netbook-launcher-efl missing now (1.4 image) - any idea where it went?

15

General Support / Re: Install asks about secondary hard disk?

« on: January 03, 2014, 04:08:36 PM »

It appears that the key (8G sandisk) does not recognize the local HD.  Kingston16G so far no problem.