Q: Permissions Errors with Macintosh HD
Hey guys,
I'm running a Macbook Pro (Samsung Evo 256 GB SSD) with Mac OS X 10.10.
I had a problem with an Adobe product installation, so I followed their instructions to enable root user. Additionally, I deleted a directory domain under Users and Groups that was causing my account to find a lost server upon login and would at times hang my account. Upon reboot, my username/password combination would not work.
I booted into recovery mode (my username being System Administrator (root)) to try to do a TimeMachine restore but an error prevents me from completing the restoration. I then tried to reinstall OS X via system utilities, and it's telling me that Macintosh HD (my internal drive) is locked. I then tried to use disk utility to either enable journaling or repair permissions, but all those options are grayed out. I do not see an unlock drive option anywhere in recovery mode. I tried to reset me password via the resetpassword interface, but I do not see any volumes/options to reset a password for any user. Reset home folder permissions and ACLs is grayed out.
I then tried to use the following command to reset my permissions in single-user mode:
sudo chmod 1777 "relevant volumes"
The sudo command shot pack an error saying "command not found". I tried to chmod without sudo, and an error shot back that the disk is write locked.
I was reading that this could be due to a wrong path, so the echo $PATH output is the following:
/usr/bin:/bin:/usr/sbin:/sbin
So, I'm pretty much stuck at the moment. I have all necessary data backed up via TimeMachine on an external (no clones unfortunately). I'd just like to reinstall OS X or do something to resolve the situation.
Cheers,
Michael
MacBook Pro, OS X Yosemite (10.10)
Posted on Jan 6, 2015 9:21 AM
ok i would recommend you to start the mac with the internet recovery hdd ( by starting the alt + cmd + r) after the article OS X: About OS X Recovery - Apple Support
then open there the utilities at the menu bar at the right site of edit. go into terminal, and open an new window over the option shell > new window with settings basic:
1.st terminal windows wrote down the cmd:
diskutil cs list
2. there you can see in the first line a logical volume group number. Mark this and copy this with cmd + c.
3. At the second window use the following cmd:
diskutil cs delete (paste here the logical volume group from step 3)
you must see then as last steps finish corestorage operation, after this you can check at disk utility and you must find the internal hdd(unlocked) and a partition named untitled.
if you are at this step you can choose from the os x utilities reinstall os x or restore from time machine backup.
Posted on Jan 6, 2015 12:30 PM
