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25/1/12 3:27pmOSX FAQ
Where can I learn more on the Command Line Interfact (CLI) ?
http://www.macosx.org/articles/cli_tutorial/clitutorial.html
Your Internet Explorer settings in OSX are in :/Library/Preferences/Explorer. If you have problems in Exploere, it is possible this has become corrupt. Simply or rename the Explorer folder and restart Internet Explorer again which should fix the problem
How do I make an iso cd image of my home directory and burn to cd
The cd needs to be iso format so that we can mount it on any operating
system, Windows/ OS X, Unix etc ..
Create a folder with the contents you want on your ISO.
Open Disk Utility and use the New Image from Folder menu item to create an image. Ensure it is uncompressed and use the CD/DVD master option.
NOTE: save this image to /Users/Shared/
because it will be too big for your quotad home directory.
This creates an Apple HFS+ format image so we need to convert it to .iso
Open the Terminal application.
[Assuming your new image is called /Users/Shared/myhome.cdr :]
cd /Userd/Shared
hdiutil makehybrid -iso -joliet -o myhome.iso myhome.cdr
This will create an ISO/Joliet .iso file.
called myhome.iso
Next using Disk Utility burn this iso to a blank cd.This could be the result of a number of issues.
To isolate the problem further undertake the following steps:
1. Telnet/SSH into student.cs.ucc.ie
2. Type 'quota' at the terminal.
You should see something similar to the following:
Disk quotas for user joebloggs (uid 666):
Filesystem blocks quota limit grace files quota limit grace
/users 413868 512000 512000 406 10000 10000
/staff 413868 512000 512000 406 10000 10000
/system 413868 512000 512000 406 10000 10000
/multimedia 413868 512000 512000 406 10000 10000
The 'blocks' column tells you how much of your allocation you have used. The number is in KBytes.
The 'quota' column tells you your allocation and the 'limit' column tells you the absolute limit. 'quota' and 'limit' are set to be the same.
If you have hit the limit of your allocation you should free up space on your account.
Note that there is also a 'limit' on the number of files you can have on your account. The default value for this is 10,000 files. If the number in the 'files' column is close to, or exceeds the file quota/limit then you will run into difficulties. Be careful with certain types of applications as they can add many files to your account; problem applications include web browsers, mail client, and applications that need to cache files.
1. Log in using your unix ( ocean) username and password.
2. From the Desktop, click on Multimedia Icon.
3. Click into Submission Server.
4. From here, you will see drop boxes for each assignment class (CS7300, etc).
5. Select your submission file from your home directory/desktop etc, and drag it into the chosen submission folder.
6. You will receive a message to the effect:
"You do not have permission to see the results of this operation - Do you want to continue?"
7. Click yes, and your assignment will be submitted.
8. Within 10 minutes you will receive an email to confirm receipt of your assignment. Please examine email carefully, to ensure you have submitted to the correct folder etc.
9. To complete this operation successfully, it is imperative to login using your UNIX username and password, to ensure you have the correct permissions etc.
Any problems regarding this can be emailed to help@cs.ucc.ie outlining the problem with error messages, as appropriate.
It is most likely that you are at or above your quota limit. You'll need to exit from this ( Ctl-Alt-Esc or equivalent) then delete some files from your home directory.
If you need to check your quota ssh to ocean with you username and password, and type /usr/sbin/quota
type cd and du -k|sort -n to find the largest files used.
When you have reduced your quota substantially , then attempt the submission again.
If problems persist, email helpdesk at help@cs.ucc.ie
If the file was dragged from browser it may just be a shortcut.
When the browser exits, the cached copy will go but it is not always clear from the icon that it is a shortcut, you could be opening a file that does not exist. Worth checking the path first.
The Shared directory (/Users/Shared) is a world read-writable directory. This means that any user may use this directory. This directory is not \'shared\' on the network. It is a local directory, accessible at the local machine ONLY.
Even-though the directory is world read-writable its contents may have different access permissions. So if you login as user A and save a file in the Shared directory and subsequently login as user B, you might not be able to see, open, or modify the file.
To verify that you are the owner of the file select the file and type Command (Apple Key)+I this will display an inspector. The inspector window has a tab for file permissions, open this and view the permissions.
Alternatively you may check the permissions by launching a Terminal, cd to the Shared directory and type \'ls -l\'. Here you will get a unix file permissions listing of the directory contents. Sometimes your username, e.g. jb1, is not listed as the owner and instead a long number is listed - this corresponds to the owner\'s unique user-id (uid). To verify your unique user-id type \'id\' at the terminal. Compare your user-id with that of the file owner\'s.
The primary reason for using the Shared directory is performance. If you try to run a movie, load a large graphics file, or modify audio from your home directory you will experience performance problems. This is because your home directory resides on student.cs.ucc.ie - hence your files are being opened or modified over the network. In certain application areas, especially Multimedia, this is not acceptable. You *must* work from the local drive - hence the Shared directory.
When you are finished working on your file in the Shared directory simply copy over to your home directory. Everytime you move to a different machine you can copy your file to the local Shared directory and continue on working with the file.