Java Desktop for UD Sun Ray Terminals

Problems

• Can't get past the login screen
• Erratic behavior of menu items
• Reset desktop to original state
• Need to reset and terminate a hung session
• No sound from speakers or headphones
• Firefox not responding
• USB flash drive does not show up
• Cannot find files in the trash folder
• Moving files to the trash does not reduce quota limits

Troubleshooting

Can't get past the login screen

If you get recycled back to the login screen after typing your username and password, try logging in using the Failsafe Session option.

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Session

Remote Login

Reset Login Screen

  Java Desktop System, Release 3

  User's Last Session

>Failsafe Session

You should see one terminal window in the upper-left corner of the screen. with a prompt on one of the Sun Ray servers: debussy, haydn, schubert, verdi or vivaldi.

Block limit reached on /home/usra
Sun Microsystems Inc.   SunOS 5.10      Generic January 2005
vivaldi.udel.edu% _

If you see the message Block limit reached, you need to delete some files to get under your quota limit. See the Block Limit Reached page for detailed instructions on finding files to remove.

If you do not see the block limit message, your problem may be due to a corrupted Java Desktop configuration. Try resetting your desktop configuration files to the default settings.

Erratic behavior of desktop system, including the menu items

The primary cause of this symptom is that you are near to or have exceeded your disk quota limit. See then Block Limit Reached page for detailed instructions on starting a Sun Ray Failsafe Session and finding files to remove.

Alternatively, you can use the ssh strauss.udel.edu command, to log on to Strauss. Look for the message "Block limit reached". For example,

$ ssh traine@strauss.udel.edu
traine@strauss.udel.edu's password: 
Using project 1691, USERED
You have $25553.34 remaining in this account.
Last login: Tue Dec  8 16:07:29 2009 from wombat.us.udel.
Block limit reached on /home/usra
Sun Microsystems Inc.   SunOS 5.10      Generic January 2005

If you do not see this message, type "quota -v" to see if you are close to being over the limit. For example,

strauss.udel.edu% quota -v
Disk quotas for traine (uid 19646):
Filesystem     usage  quota  limit    timeleft  files  quota  limit    timeleft
/home/usra    102396 102400 102400               1138  76800  76800            

In this last case, the usage is just 4K less then the limit. The block size is 4K, so this means the last file written to your account is probably incomplete. This explains erratic behavior with the menu items or packages such as Matlab or Eclipse.

Note: Normally you will see an error message with the text "write: Disc quota exceeded". But when you run these packages from a windowing system, these messages are often not displayed.

If the incomplete file is the .Xauthority file, you cannot log onto Strauss with an X-Windows server using the xauth method of authenticating the display. In this case, you can still use the ssh command to check your quota in any terminal window (PC Cygwin, Unix or Macintosh). Another possibility is to connect to Strauss using the ssh program on a PC. Once on Strauss, you can follow the directions in the Block Limit Reached page.

You may request an increase in your quota limit after you have investigated the likely cause of your disk quota problem.

Your desktop configuration needs to be reset to its original state.

1. Terminate your session by selecting Logout from the start menu.
2. Log in again, but this time choose the Session > Failsafe Session item from the pull-down menu. You should get just one open window but no Java Desktop display.
3. Type the command "gnome-cleanup" and log out. Any files you created to modify your Java Desktop (i.e., GNOME configuration files) will be erased.
4. Log in again, but this time choose the Session > Java Desktop System, Release 3 item from the pull-down menu.

Choose the Failsafe Session option.

Help

Options

Language

Session

Remote Login

Reset Login Screen

  Java Desktop System, Release 3

  User's Last Session

>Failsafe Session

Type the gnome-cleanup command.

vivaldi.udel.edu% gnome-cleanup

You currently have the following GNOME configuration files:

/home/usra/7d/32005/.esd_auth
/home/usra/7d/32005/.gconf
/home/usra/7d/32005/.gconfd
/home/usra/7d/32005/.gnome
/home/usra/7d/32005/.gnome2
/home/usra/7d/32005/.gnome2_private
/home/usra/7d/32005/.metacity
/home/usra/7d/32005/.nautilus

Do you wish to remove these files (Y/N) Y
Removed...

vivaldi.udel.edu% 

Log in again using the Java Desktop session.

Help

Options

Language

Session

Remote Login

Reset Login Screen

>Java Desktop System, Release 3

  User's Last Session

  Failsafe Session

You need to reset and terminate a hung session.

Simultaneously depress and hold the "Control" and "Alt" keys and press the Back Space key twice in quick succession. Within fifteen seconds, the session should be reset and the terminal ready for use. Note that if a smart card is inserted in the terminal, then its associated session is reset and the card may be used to start a new session.

No sound from speakers or headphones

There are three volume-control keys in the upper-right part of the keyboard. From left to right are a mute (toggle) key, decrease-volume key, and an increase-volume key.

1. Press the mute key once.
2. If that fails to solve the problem, press the increase-volume key several times.
3. If that fails to solve the problem, click the sound icon on the upper-right panel and see if the volume is too low.
4. If that fails to solve the problem, press the Props key on the left side of the keyboard while holding the Shift key down. The Properties Panel will appear. It should have the settings shown below. Be sure that Mute is not checked and that Auto is checked.

   

You have a Firefox process which is not responding.

If the following message box is displayed on your screen

then you must close the existing Firefox process, but it does not tell you which machine the process is on. If you know the host on which you have Firefox running, you can force quit your Firefox processes by logging onto that host and typing the commmand:

  pkill -u $USER firefox

If you do not know the host, you can issue this pkill command in a for loop.

csh loop (These are the default tcsh prompts.)

> foreach host (strauss vivaldi verdi haydn debussy schubert)
foreach? ssh $host pkill -u $USER firefox
foreach? end

sh loop (These are the default bash prompts.)

$ for host in strauss vivaldi verdi haydn debussy schubert
> do ssh $host pkill -u $USER firefox
> done

You may be asked for your password on each of these six composer hosts. It is the same as your Strauss password.

Your USB flash drive does not show on your desktop after it is inserted in the USB port.

Select Applications > Utilities > Mount USB Mass Storage Device from the main menu to open a Nautilus file manager window displaying the contents of your USB flash drive. If you do not see the directories in this window, wait a few seconds and press the Reload button. If the contents of your USB flash drive are not available after repeated reloads, your USB flash drive may not be able to work on the Sun Ray servers. One possibility is that it is not formatted as a FAT32 disk.

You cannot find your files in the trash folder after you move them to the trash. 

The trash management system requires additional documentation when using the UD Sun Ray terminals.  See Nautilus Trash.

Your disk quota usage does not go down after moving a file to the trash. 

Moving a file to the trash does not delete it from your home directory.  See Nautilus Trash.

Press the Delete button to permanently delete the file and reduce your disk usage.