Can't mount external Hard drive and Can't change the ownership and permiss.
Hello everyone, got a problem and maybe someone here will know. Apple care can't help because this is due to an external piece. I have a hard drive external. I partitioned it into two hard drives. Long ago, I opened the information window for one of my partitioned drives. And changed the ownership and permission to "no access". I do this all the time to keep my files from being read if its not the administrator (me). Just recently I plugged in my hard drive (firewire and USB). Only one drive mounts on the desk top. I cannot see my other partitioned hard drive and I can' access it to change the ownership and permission with "apple key and I".. I can see a trace of the two partitioned hard drives when I use disc utility. But again it won't let me change the ownership so I can mount this again. How do I access my harddrive without refomatting? I have tried to mount this with both of my apple laptops..no luck yet. Please help, anyone.
Hi, Donnie. Welcome to the Discussions.
What part of "No Access" was unclear?
"No Access" means no access for anyone.
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.
You should then see the volume, or be able to use Disk Utility to Unmount it, then Mount it and see it.
Reset the permissions for Group and Other on the partition as desired. Do not change the permissions for Owner.
If you want a volume / partition unmounted at startup, see:
• this tip Mac OS X Hints, or...
• this tip on the OSX86 Project forums.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
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