Changing Ownership & Permissions caused Volume to Disappear

When changing "Ownership & Permissions" on one of my volumes, under ""Ownership & Permissions > Details > Others" I selected "No Access." As a result the volume has disappeared from the desktop. As a result I cannot access it even though I am the Administrator. How do I get the volume to reappear again on the desktop so that I can change the "Ownership & Permissions" back to normal? I am using OS 10.4.9. Thank you.
eMac Power PC G4 Mac OS X (10.4.9) 800 MHz, 512 MD SDRAM

Follow the instructions in the section of this FAQ which is relevant to your situation.
(21095)

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Can't see external HD partition on finder, changed Ownership & Permissions

Hi all, a friend has a particular issue with his external HD. He clicked one of the partitions on his external HD and started restricting the options under Ownership & Permissions, until he got ALL permissions set to "no access". Now the HD appears, but the partition he modified does not appear on his desktop or finder, also when he runs Disk Utility he sees both partitions, but the one he changed the permissions/access of, appears as a blank document icon, like when the OS doesn't know with what to open it with, therefore, he can't select it again and click get info/change access again. Any help, tips please? Thanks in advance mates.
MacBook Pro 15", 1.83 GHz, 1.5 GB, 80 GB iPod 5G 30GB White Mac OS X (10.4.6)

Use the instructions in this FAQ to restore access to that partition.
(12892)

Mistakenly changed ownership/permissions to No Access on external Lacie.

I thought I was making no access for other Users on my G5. However, after speaking with Lacie I have instructed my OS to not allow any access. I tried the following from Kappy I saw on an almost identical post:
To fix this:
1. Launch Terminal, which resides in the Macintosh HD > Applications > Utilities folder.
2. At the Terminal prompt, type the following command:
sudo chmod a+rwx "/Volumes/partition_name"
where: partition_name is the name of the affected partition.
3. Press Return.
4. Type your Admin password when prompted, then press Return.
5. At the Terminal prompt, type exit and press Return.
6. Quit (Command-Q) Terminal.
7. Relaunch Finder: Press and hold the Option key, click and hold mouse button 1 on the Finder icon in the
Dock, select "Relaunch" from the Finder icon's contextual menu.
Did not work..says there is no directory by that name.."Lacie"...

No..it was connected to a G4 PMac..and I transferred all of my HD on the G4 to the G5 via fireware and the apple migration program. Then all I was trying to do was get the Lacie oriented to the new HD on the G5..I did..added the new name of the "source" and did the complete updated backup. Thereafter I realized that the Lacie was vulnerable to my wife's possible mistakes so I wanted to limit the access...
I did what u said..the alias disappeared...I turned the power back on and did the volumes again and it was there again..I went to trash it and it said I do not have sufficient privledges..I am sorry to take so much of your time and appreciate what your doing..

Changing BorderPane contraints causes component to disappear

Hello everyone,
I have this short snippet that is giving me a headache, don't know if it's something i'm doing wrong but the behavior seems weird to me:
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class MainWindow extends Application {
     public static void main(String[] args) {
          Application.launch(args);
     public void start(Stage s) {
          BorderPane workArea = new BorderPane();
          Button button = new Button(".");
          Scene scene = new Scene(workArea, 800, 600, Color.TRANSPARENT);
          s.setScene(scene);
          s.show();
          workArea.setCenter(button);
          workArea.getChildren().remove(button);
          workArea.setLeft(button);
          workArea.getChildren().remove(button);
          workArea.setCenter(button);
}As you can see i move the same component back and forth between left and center. When you run this piece of code you'll get and empty stage.
I have a workaround (more like a hack) but it seems that i'm lacking something, what i do in order for this to work is creating a new instance of button and remove the original from the Pane, this works ok but then i would have to copy all the properties from the original object.
Any idea on if it's normal, why, and how to workaround this?
Thanks
Bruno

Hi Bruno,
Yea, weird this doesn't work - just ran it and got the same results as you. Strangely the following does work:
public void start(Stage stage) throws Exception
    BorderPane workArea = new BorderPane();
    Scene scene = new Scene(workArea, 800, 600);
    stage.setScene(scene);
    stage.show();
    Button button = new Button("Test");
    workArea.setLeft(button);
    workArea.setLeft(null);
    workArea.setRight(button);
    workArea.setRight(null);
    workArea.setCenter(button);
}So it looks like it is a problem specifically with the remove on BorderPane not doing something that the setLeft/Right/Center does. I can't see a bug for it so I would suggest raising one. The above code is painful as you would have to record where it was last added in order to remove it on the next move.
You could also use another layout. For my money, I highly recommend MigLayout. You can do very complex layouts simply in a single pane and it handles this dynamic adding stuff well:
public void start(Stage stage) throws Exception
    MigPane workArea = new MigPane("fill");
    Scene scene = new Scene(workArea, 800, 600);
    stage.setScene(scene);
    stage.show();
    Button button = new Button("Test");
    workArea.add(button, "left");
    workArea.getChildren().remove(button);
    workArea.add(button, "right");
    workArea.getChildren().remove(button);
    workArea.add(button, "center");
}You need the core MigLayout library from here: http://www.miglayout.com/
And the JFX wrapper is here: http://java.net/projects/miglayoutfx2/pages/Home
Start using Mig and you will never look back. I have used it in Swing heavily for commercial apps and it has never let me down.
If you can't bring yourself to use Mig, and you only want to change the anchor like in your simple example, here's a little cheat that seems to work:
public void start(Stage stage) throws Exception
    GridPane workArea = new GridPane();
    Scene scene = new Scene(workArea, 800, 600);
    stage.setScene(scene);
    stage.show();
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    workArea.setAlignment(Pos.CENTER_LEFT);
    workArea.setAlignment(Pos.CENTER_RIGHT);
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}This sidesteps the whole add/remove issue.
Cheers,
zonski

Task or script to monitor file ownership, permissions and change as needed

I'm using a Mac OS X Tiger (10.4.9) computer as a file server for a group of people who are (1) individually non-administrative users and (2) members of Groups. The hard drive is partitioned into 2 volumes: Vol1 has no non-admin access, Vol2 has a Shared folder containing folders with files intended for either Public or Private access. I'm admin with UID=501 and trying not to be a danger. Each other user has a unique UID. Each Group has a unique GID. The folder that all users have access to is named Pub_shares. Every user allowed to access Pub_shares is a member of PubGroup (GID=505).
Now when a user accesses a file nested in Pub_shares, that file usually becomes owned by that user and the group membership may change from PubGroup and may undergo a change to "Read only" or "No Access." Since all members of PubGroup should have Read & Write access to files in Pub_shares, this is a problem. All files in Pub_shares, regardless of who last touched them, should remain:
Owner = chris / Access Read & Write
Group = PubGroup / Access Read & Write
Others = No Access
I've read some about Ownership & Permissions. I've seen it suggested that an admin set up an automated task, say to run every 3 minutes; that task checks file ownership and permissions and, if different, changes the values recursively to those shown above, such that:
Owner = 501 / Access = rwx
Group = 505 / Access = rwx
What do I need here? An Automator workflow? A shell script? AppleScript? Cron? launchd? How do I put this together? I don't know the syntax or the expressions to use. Any help is much much appreciated. [Note again: My "server" runs Tiger 10.4.9.] Thanks.

..."I have some Windows users (trying) to access shared files. Will the afp inheritance options stand up to a Windows user?"...
No the afp inherit settings won't apply to windows sharing, but I think there are equivalent settings that can be applied to smb.
..."I thought, too, I'd read somewhere that inheritance options use the topmost volume folder to set inheritance patterns."...
I am not able to double-check this for Tiger, but I don't think that is the case. As far as I know, with those settings enabled (and it doesn't work reliably if only one is enabled) permissions and ownership should be inherited from the folder that the items are added to.
..."My topmost folder on vol2 is "Shared" but it contains both Pub_shares (accessible by members of PubGroup) and a few Private_shares (folders accessible by members of various private groups)."...
Sorry I missed that point in your earlier post. The above would cause complications if a user were to move items from the private area to the public area. The inheritance only applies to when files are created, so something moved from the private area to the public area would retain its original permissions. To make it work, the public and private areas would have to be set up as separate shares, rather sharing the whole volume.

Change ownership from "system" on mounted volume?

I have an external firewire drive with 3 partitions all of which are mounted on an iMac, and which until recently all had the same ownership and permission settings under my admin account. One of the volumes (the one storing all the users' iTunes songs) somehow changed ownership to "system" and group to "wheel". I can no longer access the volume nor can the other user accounts on the iMac, although it shows up as a mounted volume when viewed in Disk Utility. "Repair permissions" is unavailable for this volume in Disk Utility. The other two volumes are unaffected and retain the original ownership settings. I'd like to reset ownership from "system" to my admin account, but do not know how to do so as apparently it needs to be done through unix commands using Terminal. What do I need to do?
iMac Mac OS X (10.4.8)

"...under Ownership & Permissions, click on the lock, enter your password, and change the Owner to you, with R&W access and the Group to admin, also w/R&W access, and click o Apply to enclosed items. Click the lock and close the Info window. No need to use Unix commands in the Terminal app."
I first tried that approach but unfortunately the procedure does not work. Under Ownership & Permissions it says "You have No Access". I can click on the lock and select my name under Details: Owner, but once I click to relock, Owner just reverts back to "system".

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Settings> Mail, Contacts, Calendars> in Calendar section change the Sync setting.

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Hi
I have my iPhone 4s plugged into a dock and the dock connected to an amplifier with 2 speakers and a bass, the problem is that the amplifier doesn't have a volume changer and when i plug in the iPhone into the dock the iPhone´s volume bar disappears and im not allowed to change the volume and its very loud. how can i change the volume? is there an app? any ideas??(my dock doesnt have infrared remote controller )
TY!!!!

Kline25 wrote:
So even if I just ask to pay them to replace the lock button they won't because my screens are third-party?
Apple does not repair devices beyond replacing the screen on some models or a battery replacement. They replace the ENTIRE device.
For the Out of Warranty replacement cost, you could have gotten a fully functional replacement device. Instead you chose to spend less to get only the screen replaced and continue to live with additional issues.
Apple will not touch the device now. They will know that it was opened elsewhere and that the replacement screen is not original.

Why can't I change ACL permissions of a volume on mac os x 10.6

Hello,
I'm currently working with a Mac OS X 10.6.8 Server with 2x1TB drive installed in RAID configuration (/Volumes/LTRK) and 1x2TB installed as a regular volume (/Volumes/LTRK2/). For both volumes I could set all permissions perfectly, but recently, I cannot change the permissions on the 2TB volume. I have the following current permissions:
ACL:
Group of regular division members (read + all descendants)
Group of ICT co-workers (read/write + all descendants)
Administrators (read/write + all descendants)
Everyone (read + all descendants)
POSIX:
The admin user account (read/write + this folder)
The 'staff' group which is automatically there (read/write + this folder)
Others (read + this folder)
If I compare to the drive where I can change the permissions and where everything works correctly (the RAID config), the only difference is that the 'Everyone' group permissions are not set to be inherited for the working drive (so only on the volume level). I wanted to check whether this was the source of my problems and tried to change the permissions of the 'Everyone' group. However, as soon as I click Save in Server Admin, it automatically reverts to all descendants.
The results of the failure to reset the permissions, leads to the fact that I don't have write access anymore with the admin user accound (I guess due to counteracting permissions). I also tried to delete all permissions from the volume with "chmod -R -N /Volumes/LTRK2" but this gives me a list of every file on that volume, with the error message: "chmod: Filed to clear ACL on file filename: Invalid argument"
Does anyone have any suggestions on how to solve this issue?
Kind regards

Welcome to iMovie Discussions.
See my 2nd reply to 'getzcreative', here.

Volume changer on ipod touch music app disappeared

the volume changer on my music app just disappeared, and now I don't know where the heck it went

Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.

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This might help. Otherwise, it might be necessary to reinstall.
https://discussions.apple.com/docs/DOC-2240

How can I change 'Custom' permissions for TM backup disc?

I have recently had some big problems with permissions on the main disk of my G5 iMac. After fixing permissions, Time Machine then reported that my backup disk (an external 300Gb FireWire disk) was read-only and so backups couldn't take place, and the icon for the disk has a padlock shown on it. Looking at the Get Info for the disk and unlocking 'Sharing and Permissions', I see a line saying 'You have custom access', and that all permissions shown are set to 'Custom'. I don't know what this means - and worse, I can't change the permissions to any of the normal settings (Read & Write, Read Only, Write only (drop box)), and I can't check 'Ignore ownership of this problem'.
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Time Machine uses special "deny everybody everything" permissions. You should not change them.
FIrst, do a +Repair Disk+ (not permissions) on the TM volume via DIsk Utility (in your Applications/Utilities folder).
If that doesn't correct it,
If you only have a partial backup, or don't need the ones you've done, the simplest thing to do is just erase the disk/partition.
If you don't want to erase it, here's a workaround:
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It shows the messages from your logs for one TM backup run at a time, in a small window. If it shows a message like this: "You do not have appropriate access privileges to save file “.<nnnnnnn>” in folder <Name>"* skip to *Open the Terminal App* below.
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In a Finder window, select your Time Machine drive/partition. The very first file shown should have a name consisting of a period (dot) followed by 12 numbers and/or letters. (This is your Mac's Ethernet address). Copy or make a note of it.
Open the Terminal app (in your Applications/Utilities folder).
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(where <your name> is your short user name). It's followed by a non-blinking block cursor (unless it's been changed via Terminal > Preferences).
At the prompt, type the following exactly as shown, substituting the name of your TM drive exactly, including any spaces, between the quotes; and the string of numbers & letters from the message where the series of x's are (keep the dot):
<pre> sudo chmod 644 /volumes/"TM drive name"/.xxxxxxxxxxxx</pre>
example: sudo chmod 644 /volumes/"TM Backups"/.0a1b2c3d4e5f
Press Return. You'll get some warnings and a request for your Administrator's password. Type it in (it won't be displayed) and press Return again.
Then try a +Back Up Now+ from the TM icon in your Menubar, or by control-clicking (right-clicking) the TM icon in your dock.

System Folder errors after I changed all permissions on HD to read & write

Hi,
Two things may have caused probs on my new 2010 iMac (Snow Leopard), and Applecare is shut so I would really appreciate some help as I have urgent work.
1) INCORRECT PERMISSIONS
I have been stupid. I clicked on Macintosh HD and changed all permissions to read & write because I wanted to be sure I could open and edit all documents on other computers.
I ran Disk Utility Repair Permissions from the install disc, but I am still getting system error messages, and my HP printer won't work.
The first message, in Repair Permissions, said: Warning: SUID file System/Library/Cores has been modified and will not be repaired. I have read a support doc on this which says no need to worry but I don't like it and would like to fix this.
More importantly, my HP printer won't work, displays error beside the document in print dialogue box.
Deleting the printer and readding it didn't work, so I downloaded new drivers and tried to install them, which is when I got the second system error message: System extension System/Library/Extensions/BJUSBLoad.kext was installed improperly and cannot be used. Please try reinstalling it or contact product's vendor for an update.
I checked the permissions on the file and they were still wrong despite Repair Permissions, allowing everyone to read & write. So I have now clicked on the entire System folder and changed the permissions to: System read & write, admin read only, everyone read only.
Will this fix it or do I need to do something else, such as check ownership, to make sure all permissions on the computer are now correct?
2) MEMORY STICK SHUT DOWN MY IMAC
Additionally (though I don't think this had anything to do with my problems), I inserted a Sandisk USB memory stick the other day and it immediately shut down the computer. When I inserted it into my Macbook it initially rejected it and gave me a message saying the device wanted too much power so it had ejected it to prevent damage to my computer. When I tried again it was OK. I totally reformatted the stick in case there was something harmful on it, but should I now bin the stick as faulty? Scared to use it again.
3) IS IT BEST TO REINSTALL ENTIRE SOFTWARE?
If I do a reinstall of all the software from the install disc, will it wipe out all my data, such as Mail, documents, bookmarks and other apps?
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Thank you
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Oh, silly really. I was in a hurry and working on docs that I needed to take to the office and open on another computer there.
But when I checked the permissions on the doc it said I could read & write but everyone else was read only.
I thought if I opened it on another machine I'd be stuck with read only access and not be able to work on there. I think I couldn't change it, so I thought to avoid any future problems like that I would change everything on machine!
Yikes. Won't do that again
Sarah

How to "Ignore Ownership On This Volume" When Saving File to External Hard Drive?

Hello,
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Surely, I don't have to give permission to save each and every file - This is a very serious hobby for me, but I am doing it out of my home, and no one else at this time uses my computer.
Before submitting this request, I called Apple support first, and they tried doing a Disk scan and repair of the permissions, but this was only for the internal Macintosh HD drive, not the external one that is related to this incident.
Thanks For Your Help ahead of time!
Also, this might should be saved for another separate question, but I had to set change my resolution to 1920 X 1200 - The text, etc, was much too large for especially doing anything in Photoshop. This new iMac has a 3.06/4 GB RAM/1 TB internal HD/NVIDIA GeForce 8800 Graphics Card.

Buko-
To tell you the truth - and I apologize for that statement - I woke up early this morning, and it hit me that I took what Lundberg02 said earlier the wrong way! So, I couldn't wait to get back on and apologize to him and all of you - And I hope that you will forgive me.
When I think about it now, perhaps he is right - This may not have been a pertinent place for me to insert this question. But after spending a long time with Apple about it, and then Seagate - I decided that the only other place I could go was to ask you guys. I thought, perhaps someone here had encountered the same problem when switching from pc to Mac platform. But perhaps I shouldn't have.
Actually, Seagate - I think - solved the problem, at least this erase procedure was working after two hours - until I decided that I'd cancel it, and take it back to Costco for a refund, which I did. And the Seagate rep told me that he didn't blame me, because the drive was getting a little old, and if I used their warranty program, I'd probably gotten a refurbished one, anyway. So, all of this trouble I've put you good people through has gone "for naught".
But hopefully, you'll be acceptable in the future when I ask more applicable questions, when my wheels really start spinning. Otherwise, I probably won't come here that often, anyway. I just enjoy fixing up old black family photos and coloring some of them. And I got the basics down. You know, like cloning, healing, and layering them to death!!
Thanks for understanding - And for forgiving me.
Burtron

Changing Sharing & Permissions on a Mac OS Extended External Drive

I'm using ChronoSync to back up to 4 external hard drives. Three of them were formatted as Mac OS Extended (Journaled), while the 4th is not journaled. On the journaled HD's, I can change the privileges for me, staff and everyone in Get Info; I can also check or uncheck "Ignore ownership on this volume" on 2 of them. My Time Machine volume doesn't have the option to ignore ownership. My issue is that changing privileges on the Mac OS Extended volume is grayed out, and the box to ignore ownership is checked. Therefore, Chronosync cannot write to the volume.
I could try to use chmod in Terminal to change permissions on this volume, but I don't know the syntax to get to a mounted volume (I know they're listed in /Volumes).
So I have two questions:
1. Does this issue indicate a substantial difference between journaled and not-journaled Mac OS file systems?
2. What is the syntax in Terminal to change the permissions on the volume (name is Video Backup) so that I can at least uncheck the "Ignore ownership on this volume"?
I apologize if this has been asked and answered elsewhere on this forum, but I wasn't able to locate such a discussion.
Thanks,
Nick
Message was edited by: nickditoro

Hi mackjack,
The commands Niel posted were to regain access to a drive not to change existing permissions. Nonetheless, I executed them so at least I know the syntax to use in order to get to an external hard drive (something I hadn't known before), so thanks!!! I might try chmod 770
Update:
Now that I know the basic syntax (thanks to you) I can now change permissions for any user I like. Chronosync is able to synchronize to the drive.
Thanks!!
Nick
Message was edited by: nickditoro

Changing Ownership & Permissions caused Volume to Disappear

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