Haw to change permission on a external hard drive?

HI,
I can't use my external hard drive cause after the upgrade to lion when I try to do it the mac says that I haven't permission to open it...
EHD: verbatim gigabit NAS external hard drive
thx

That's if you want to have permission on the drive at all.
If you want the drive to be accessible by everyone then do the following:
Highlight the disk
Command-i to get info
Click the disclosure triangle next to "Sharing & Permissions" if it's not already pointing down
Check the box "Ignore ownership on this volume"
If it's grayed out you'll have to click the little orange padlock and supply your admin credentials.

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how do i change read/write permissions for an external hard drive?

If, on the otherhand, you are trying to write to a drive that is formatted NTFS (for Windows), and can't.
You have two choices...
1. Reformat the drive. Either Mac OS format, if you are using this only on your Mac. Or ExFAT, or FAT 32 if you intend to use it on both a Mac OS computer and a Windows unit. note: ExFAT is not suported by XP.
2. Install one of the drivers necessary for the Mac to write to a NTFS volume. Unless you want the experience of having the support for this being one that is sporadic, avoid this. I used to be a strong proponent of NTFS-3G, until I started having the problems with Lion, that many users warned us about. Go this route only if you find you must use NTFS on your drive. Paragon and Tuxtera are the sources for these.

Permission issue with external hard drive

Hi,
I have an external hard drive that has a bunch of video and audio files on it. Any time I try to open any file from the drive, regardless of file type, the application it's supposed to open it says it can open. Most of the people I have talked to have said that it's a permission issue and have not had a solution for this. Looking for any suggestions on how to repair these permissions. Disk utility has been no help and when running recovery software like Data Rescue the files come out in the end with the same issues.
Thanks.

Drive was shot and could not rescue the information

Permission problems with external hard drive

Hello there, I'm writting you from Paris but my french is just not good enough to really explain my problem. I'm no computer expert so i might not use the right name for stuff but i will try to be as clear as possible.
I have a macbook pro 13" from early 2012 and I'm currently running Mountain lion.
At home i use an internet modem that has an internal hard drive of 250gb. and it also gives you the possibility to conect other usb hard drives on it so you can access them through wifi.
I currently have to usb hd of 1tb each, one i use it for Time Machine and so far it works fine and i haven't had a problem with it, all back ups have been done ok. In the other one i have all my films and tv shows and stuff like that and it is in this one that i have the problem. In certen files and folders i'm not able to do anything with them, i tried to rename them but it says i don't have the permission to do it, i tried to delet another one and it said pretty much the same thing, some other time i tried to move the file to a diferent folder it it would ask me for my password and after type it and press enter it would just not move them, no error messager or anything it just didn't do it. Most of the times i have a messager saying stuff about permission or things like i can't read the file. The thing i can't understand is that as soon as i plug the HD on my mac it works fine i can rename and change stuff, I noticed that some of the files and folders have a little lock on the corner, but they aren't the ones i tried to move or rename before and i tried already unlocking all of them but eventhough i manage to unlock them when i plug the HD back to the modem it keeps the same, can't rename or move, not even to the trash.
Can anyone help me out here? I'll be really thankful
Cheers!

Drive was shot and could not rescue the information

Changing computers but not external hard drive, how to modify and delete catalogs?

Moving my relatively new 2012 Mac Mini from office back home that has LR4 and PS CS6 installed. It has a small LR catalog that I want to delete completely.
Presently at home, I use my MacBook Pro which I want to take "offline" in regards to photo editing, which also has LR4 and PS installed and is attached to an external drive with all my pictures that I want to have recognized by the Mac Mini LR4.
1) Can I just delete (from the Mac Mini) the Lightroom folder which contains the Backups folder, and the following files: LR4 Catalog Previews.Irdata, LR 4 Catalog.Ircat, LR4 Catalog Ircat-journal, and LR4 Catalog.Ircat.lock?
2) How do I create a new LR4 catalog on the Mini to existing picture folders on the old hard drive, which were previously associated with the MacBook Pro?

1) Yes
2) You don't create a new catalog in this situation; you simply move the catalog file from the MacBook Pro to the Mini, then double-click on it.

HT1553 how to change permission for my external hard-disk ??????

can't copy files from my mac to hard disk

You could select the 'Ignore ownership on this volume' box in Get Info for the disk - see below - unlock the lock first:

Changing format to an external hard drive

so my external hdd is in NFTS and i want to change it to FAT32 so i can modify some files in my mac aswell as in my pc, but i'm scared of changing my disk format because i have a lot of important files in there which i cant backup because of its size and im not sure if changing the disk format with disk utility will erase my files
http://www.macworld.com/article/1165513/how_to_share_an_external_drive_between_a _mac_and_a_pc.html
I'm following this tutorial
can i change my hdd format without deleting all my files in it?
does the files inside are in any danger when changing the hdd format?

Changing a drive's format erases its contents.
(80436)

HT3275 When I press "select backup location" in the Time Machine section of System Preferences, my external hard drive doesn't appear as an option. How do I change this?

When I press "select backup location" in the Time Machine section of System Preferences, my external hard drive doesn't appear as an option. How do I change this? My external hard drive is a FreeAgent GoFlex Drive.

Hi, what Format is the external Drive?
They usually come PC Formatted for Fat32/MSdos, or NTFS... is there anything on it now?
How to format your disks...
http://www.kenstone.net/fcp_homepage/partitioning_tiger.html
(To Install OSX on an IntelMac the Drive it needs the GUID Partitioning scheme mentioned at the bottom.)
Thanks to Pondini, Formatting, Partitioning, Verifying, and Repairing Disks...
http://Pondini.org/OSX/DU.html

I can't copy files to External Hard Drive : Please help..

Evening,
I've just bought a Macbook and am just getting to grips with it. This is my first question on this forum...the first of many no doubt.
Problem I've got is that I can copy file's from an external hard drive on to the MAC but I can't go back the other way and copy file's from the MAC on to the external hard drive - it says 'New Folder cannot be modified'.
When I go into 'Ownership and Permission' of the external hard drive it says I can read only.
The Hard Drive is a Octigen USB 2.0 drive if that helps..
Any ideas?
Thanks for your help
R
Macbook Mac OS X (10.4.8)
Macbook Mac OS X (10.4.8)

How confident are you that MacFuse/ntfs-3g is a reliable option for ordinary humans? It is at version 0.2.2, not long out of beta, the FAQ mentions slow write performance and other rough edges (possibly fixed in the current version), and this is a comment by the author as of 1/11/07:
"Small disclaimer: Please note that MacFUSE is a complex piece of software, and it is a work in progress. We believe in releasing early and often, so we're releasing it now so that the community can help us to make it more robust."
I have no need for it whatsoever, but if I did, I would have concerns about using it for a backup drive.

I recently purchased an external hard drive to back up my iMovies. When I try to open the movies on the backup I get a message "you may not have permission to modify that folder" How do I change permissions on the backup?

I recently purchased an external hard drive to back up my iMovies. When I try to open the movies on the backup I get a message "you may not have permission to modify that folder" How do I change permissions on the backup?

Hi
One Must NEVER move or alter any folders named
• iMovie Event's - or -
• iMovie Projects - or - alike
on DESKTOP/FINDER - Ever ! - ONLY Within the iMovie Program ! else all connections are broken and hard to impossibly to mend !
but rather do as described here under
Moving Event's and Project's
Connection - Either connect one Mac in Target mode to the other via FireWire. Or use an external hard disk !
(Target-Mode - Start one Mac e.g. laptop - BUT keep T-key down during full up-start - Now a FW-symbol is jumping around the screen and it will work as an external hard disk when connected to the other Mac)
A. The External Hard Disk - MUST BE - Mac OS Extended (hfs) formatted to work for Video. UNIX/DOS/FAT32/Mac OS Exchange works for most other things but not for Video whatever program is used (iMovie or FinalCut)
B. Should be a FireWire one as USB/USB2 performs badly to me and especially when filling up
C. Do never Move or Alter any folder named
• iMovie Event's - or -
• iMovie Project's
on DeskTop/Finder - as this will result in iMovie losing connections to them and repair can be anything from hard to impossibly
D. Moving and Copying must be done within iMovie application and Events to Events - and - Project's to Project's.
E. Moving Project's to Event's - Do not work for me - I have to export project as a QuickTime movie then Import this into Events.
Event's window can show two faces
Like this
or like this
from one hard disk Event - You can move it to the other hard disk
You can not (at least not me) move Event to Project or other way around only
Event to Event and Project to Project
Yours Bengt W

I do not have permission to write in my external Hard Drive

Hello everybody.
I have recently bought a MacBook Pro (15, 2.16 Ghz with OS X 10.4.9) and I have a Beyond Micro 300Gb external Hard drive that I have been using with my PC. This drive has a Windows NT File System.
When I first plugged it to the Mac, I changed its name to recognize it better. Now, I am not able to transfer documents from my Mac to it, but I am able to do so through the PC.
Am I done something wrong?
Am I blocked this drive? (Once open, I see a pen crossed on the lower left corner)
And if so, Could I unblocked it to make it writable?
When I try to transfer any documents with the Mac I get a message saying that I can't do it and because I do not have permission. (I am the administrator).
I read a previous posting talking about a similar problem, but I really couldn't understand the solutions and/or differences beteween NTFS, FAT 32, MS-DOS and MacFuse (I am a complete novice).
I also tried (as suggested in the posting) to use the Disk Utility to set the permissions from there, but when I select the external Hard Drive all the options are dimmed. Also, the info panel says I only have permissions to write, having no other available alternatives to choose from.
The question is: How can I make this drive available to both Operating Systmes without erasing all the information inside (format)?
Thank You in advance.
Cordially,
Juan Carlos
MacBookPro Mac OS X (10.4.9)
MacBookPro Mac OS X (10.4.9)
MacBookPro Mac OS X (10.4.9)

Thank You rvdparis
I have just intalled MacFuse (with Tools and Core) and it does allow me now to read and write in my external Hard Drive.
Once again, THANK YOU VERY MUCH.
And yes guys, this seems to work. Forget about formatting your external hard drive. MacFuse changes the permission instantly.
Cordially,
Juan Carlos
MacBookPro Mac OS X (10.4.9)

I don't have permission to access certain folders in my external hard drive?

Every year at my college, we get our laptops re-imaged and completely wiped of all their data for new programs, etc. Prior doing this, I backed up all my files onto a WD external hard drive. This is not the first time I've gotten my macbook wiped or used the hard drive, so I am not sure why I'm experiencing problems this time around. In the hard drive I am able to access the Applications folder, but all the rest of the folders such as Desktop, Documents, Downloads, Pictures, etc. which is located in the Users folder under my previous user acc, have a tiny no entry symbol on the bottom right corner. When I click on the folder it tells me "The folder "blahbalh" can't be opened because you don't have permission to see its contents."
The only security the drive has on it is an initial prompt for a password that I enter once the hard drive is plugged into my mac. There are no problems there. So why don't I have permission to view certain folders?
Any help would be appreciated. I have all my work on there. Thanks.

First make sure you have read & write access to the folder you're trying to restore to. You should be able to see its contents in the Finder, and to move files in and out of it.
This is an exception to the rule that you should never make any changes to backup data. I've tested this procedure in OS X 10.8 only. It should work with later versions, but I don't know whether it works in earlier versions. Use this procedure only for files that were backed up from your home folder, or a folder on another volume created by you, and would normally be writable by you. Do not touch backups of system or application files.
In the Finder (not in the time-travel view), navigate to the backup volume, then to the folder named "Backups.backupdb", and then to the snapshot you want to restore from. The snapshots are folders labeled with the date when they were created. Inside each of those folders is a file hierarchy like the one on the volume that was backed up. Descend through the hierarchy until you come to a folder named "Users," and inside that, a folder with your user name. The procedure will be different if you're trying to restore files on another volume.
Select the folder and open the Info dialog (command-I). Click the padlock icon in the lower right corner of the window and authenticate. In the Sharing & Permissions section, give your account Read & Write access. You may have to close the dialog and repeat this step in order for the change to show up. Then click the gear icon and select Apply to Enclosed Items from the popup menu.
Try the restore operation again, in the time-travel interface.

External Hard Drives Changing Permissions to Read Only

Three of my USB external hard drives have suddenly changed to read only. One of the times I was trying to transfer/back-up the files from one drive that had changed to read only to another external. Suddenly the second drive changed permissions. Then after plugging a third external, that drive changed permissions. They all were working perfectly fine with my computer and I have only been using them on MACS. Any explanations? Could there be something wrong with my USB ports? Is it possible to have a virus of some sort?
Thank you!

In disk utility I had a look. I cannot verify or set permission (greyed out). The data coming back from info. How can I change this??
Name : FUJITSU MHZ2320BH G1 Media
Type : Disk
Partition Map Scheme : Master Boot Record
Disk Identifier : disk2
Media Name : FUJITSU MHZ2320BH G1 Media
Media Type : Generic
Connection Bus : USB
USB Serial Number : 560A48A291F9
Device Tree : /PCI0/EHC1@1D,7/@3:0
Writable : Yes
Ejectable : Yes
Mac OS 9 Drivers Installed : No
Location : External
Total Capacity : 298,1 GB (320.072.933.376 Bytes)
S.M.A.R.T. Status : Not Supported
Disk Number : 2
Partition Number : 0
Name : NieuwVolume
Type : Volume
Disk Identifier : disk2s1
Mount Point : /Volumes/NieuwVolume
File System : Windows NT File System (NTFS)
Connection Bus : USB
Device Tree : /PCI0/EHC1@1D,7/@3:1
Writable : No
Universal Unique Identifier : C7B58C48-D6BC-4078-9DAE-CB125901A4D6
Capacity : 298,1 GB (320.070.288.384 Bytes)
Free Space : 127,1 GB (136.438.530.048 Bytes)
Used : 171,0 GB (183.631.757.312 Bytes)
Number of Files : 85.578
Number of Folders : 0
Owners Enabled : No
Can Turn Owners Off : No
Can Be Formatted : No
Bootable : No
Supports Journaling : No
Journaled : No
Disk Number : 2
Partition Number : 1

Why does my Mac ask for my password when I try to make a change on my external hard drive with Time Machine?

I recently formatted the hard drive to do a fresh install of Mavericks on my Macbook Pro Retina. I then formatted my Western Digital 2 TB External Hard Drive for Time Machine. I then began storing others files and folders on the external hard drive along side the TIme Machine Backup folder. Everytime I added a folder or changed a foler name it asked for my password.
This has never happened to me before using any other OSX.
I apologize if this has been resolved before, I'm new to the communities and have yet to find a solution.

It is not a good idea to be storing other Stuff on your Time Machine drive. You may need an additional separate hard drive for those things.
Once you tell Time Machine to use a Drive, Time Machine owns the Drive. You (as a User) do not have permission to put things there. If you insist, it will do it, but wants your Admin password to do it.

External Hard drive Permissions changed to "read only"

I use a Seagate Slim Drive (500GB) on my Macbook Pro (Late 2012, Retina, 13"), to store movies and tv shows and whatnot. Last night, I was watching a movie and everything was fine. I ejected the drive after use and it stayed that way overnight. This morning, I tried to connect it, but the partition refuses to mount. I got a friend to help me run command prompt diagnostics using terminal, which revealed that the permissions had suddenly changed to "read only". I really need to access the data on this drive because some of the movies in there are part of an important project that could hopefully land me job. Any help is welcome.

1. Select the external hard drives icon
2. Right-click > Get Info (cmd + i)
3. Expand the Sharing & Permission column
4. Click on the lock at the bottom right
* You will be prompted for an administrator name and password *
5. Once unlocked change the permission for user, group & everyone to read & write
6. Click the little gear right below and select “Apply to enclosed items…”

Haw to change permission on a external hard drive?

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