Disk Utility displays External Drive. Says Drive is locked. Cannot erase or change partition.
Finder doesn't display Drive.
How can i unlock disk to erase for new use.
There isn't any important data on the disk. Just want to be able of using it again.
Thank you.
MacBook Pro, OS X Mountain Lion (10.8.2)
Launch Terminal and at the prompt use this command
sudo chflags nouchg /Volumes/"Name of Volume"
replace Name of Volume with the acutual name of your volume and keep the quotes around it if there are any spaces in the name.
Press return.
Thank you for your fast reply:
Terminal displays...
chflags: /Volumes/Safe: No such file or directory
Safe is Drives name as i used it and as it's displayed under DiskUtility.
Drive isn't diplayed under Finder.
If the drive is formatted NTFS it may not be accessable.
What is the output if you copy & paste this at the prompt and press return?
ls -ale/ Volumes
ls: illegal option -- /
usage: ls [-ABCFGHLOPRSTUWabcdefghiklmnopqrstuwx1] [file ...]
sorry, i'm not familiar with terminal by now
I used DiskUtility --> External Drive used format MacOS journaled crypted before.
I think you're using incorrect syntax in terminal. Every space and / counts. ls is simply a list command and can't be an illegal option. But if it's encrypted (FileVault) that may be the issue. I'm not too savvy with FV. Might google "decrypt filevalut drive" for possible answers, or hopefully someone comes along in this thread.
okay, got it with ls -all
total 56
drwxr-xr-x+ 17 xxx staff 578 Sep 24 15:08 .
drwxr-xr-x 6 root admin 204 Sep 24 14:09 ..
-rw------- 1 xxx staff 3 Aug 28 00:52 .CFUserTextEncoding
-rw-r--r--@ 1 xxx staff 15364 Sep 24 17:33 .DS_Store
drwx------ 2 xxx staff 68 Sep 24 17:39 .Trash
-rw-r--r-- 1 xxx staff 581 Aug 28 01:29 .anyconnect
-rw------- 1 xxx staff 42 Sep 20 10:37 .bash_history
drwx------ 3 xxx staff 102 Sep 3 11:18 .cups
drwxr-xr-x 3 xxx staff 102 Aug 28 01:09 .keepassx
drwx------+ 4 xxx staff 136 Sep 24 17:38 Desktop
drwx------+ 8 xxx staff 272 Sep 24 17:19 Documents
drwx------+ 4 xxx staff 136 Sep 24 17:38 Downloads
drwx------@ 46 xxx staff 1564 Sep 24 16:40 Library
drwx------+ 4 xxx staff 136 Aug 29 00:22 Movies
drwx------+ 6 xxx staff 204 Sep 21 19:03 Music
drwx------+ 5 xxx staff 170 Sep 2 21:48 Pictures
drwxr-xr-x+ 4 xxx staff 136 Aug 28 00:50 Public
looks for me like listing up which folders i opened how often.
using ls -all /Volumes displays:
total 8
drwxrwxrwt@ 3 root admin 102 Sep 24 17:32 .
drwxr-xr-x 31 root wheel 1122 Sep 24 15:04 ..
lrwxr-xr-x 1 root admin 1 Sep 24 15:07 MacintoschHDD -> /
not sure it this is a help, but thanks a lot for even reading this...
Copy & paste
ls -ale /volumes
Press return.
total 8
drwxrwxrwt@ 3 root admin 102 Sep 24 17:32 .
0: group:everyone deny add_file,add_subdirectory,directory_inherit,only_inherit
drwxr-xr-x 31 root wheel 1122 Sep 24 15:04 ..
lrwxr-xr-x 1 root admin 1 Sep 24 15:07 MacintoschHDD -> /
Well, your external drive isn't showing up as a mounted drive, only drive there is your internal.
Not sure about the deny add_file...?
Seems i'm being confused too much on my 'normal' routine using DiskUtility to format external disk for use not working out.
Not fighting for any data, more for to be able using this disk again. Currently, it plays dead turtle.
Question to Community:
Is there a way to force mounting external disk and be able to format it with DiskUtility.
Currently Drive is displayed in DiskUtility not in Finder. With the hint from DiskUtility that it's locked.
Thank You
Same boat, over here.
I used the terminal command you advised:
ls -ale /volumes
mbp:~ t0adc$ ls -ale /volumes
total 8
drwxrwxrwt@ 4 root admin 136 Oct 27 09:03 .
0: group:everyone deny add_file,add_subdirectory,directory_inherit,only_inherit
drwxrwxr-x+ 44 root wheel 1564 Oct 19 05:44 ..
0: user:toadc allow list,add_file,search,add_subdirectory,delete_child,readattr,writeattr,readextat tr,writeextattr,readsecurity
1: group:admin allow list,add_file,search,add_subdirectory,delete_child,readattr,writeattr,readextat tr,writeextattr,readsecurity
drw-rw-r-T 44 t0adc staff 1564 Oct 14 13:59 MacBookPro HDa
lrwxr-xr-x 1 root admin 1 Oct 19 18:23 Macintosh HD -> /
mbp:~ t0adc$
What I did to unlock my external drive from the "Read-only state".
Launch your DiskUtil application and find there your locked HD drive. Then, you should see the partitions under the tree of that HD drive. So choose one of that partitions which is locked and had a read-only status, then unmount it and mount it back with a button on the top line of the DiskUtil.
That worked for me.
unlock external drive
