Linked Questions

0
votes
0answers
1k views

macOS not allowing me to change file permissions though I am the sole user/admin [duplicate]

macOS is not permitting me to change the file permissions of any file! whenever I try to add the admin which is me, finder gives me this error: you don't have necessary permission - operation not ...
1
vote
1answer
1k views

root permissions [duplicate]

After I installed el Capitan, Little Snitch started complaining about gamed trying to phone home. Research in the net revealed various suggestions, including logging out from the Game Centre using ...
94
votes
9answers
36k views

Is it 'OK' to use the root user as a normal user?

I have enabled the root user on my Mac so I can log into it and run Finder etc. Being the lazy person that I am, just transferred everything from my home directory to /var/root. I'm not too sure of ...
48
votes
13answers
29k views

Can you actually use Terminal to crash your computer?

People who don't understand Terminal are often afraid to use it for fear that they might mess up their command and crash their computer. Those who know Terminal better know that that's not the case - ...
130
votes
2answers
180k views

How to investigate high kernel task memory usage?

I was using my MBP (with 16GB of RAM) as usual and out of blue I've this popup that: Your system has run out of application memory. To avoid problems with your computer, quit any applications ...
52
votes
6answers
78k views

File can't be moved by root on OS X

I tried to move a few files to a subfolder on OS X. One refused to move. It said Operation not permitted. I tried again as root: $ sudo mv file subfolder/ mv: rename file to subfolder/file: Operation ...
19
votes
3answers
95k views

View another user's files in OS X

Is there a way to (temporarily) view another user's file on OS X other than to change the permissions of the file? I'd like the OS to ask for the user name/password. I guess what I'm looking for is ...
12
votes
4answers
41k views

Trying to set boot-args with nvram gets “general error” on Sierra

I'm trying to temporarily disable KEX signing enforcement on my MBP since my company's VPN client (GlobalProtect) is failing the signature check now. This started yesterday when I did the OS upgrade ...
9
votes
1answer
13k views

Can't write to /usr even with sudo

Here's my problem: sudo php -d detect_unicode=0 go-pear.phar ...should let me run as root and modify /usr & /usr/share directories, but I get this: Below is a suggested file layout for your ...
8
votes
2answers
19k views

Can't change MAC Address in El Capitan

I read the answer to this question and tried to change my Mac's en0 MAC address. When I use ifconfing, it reports the newly set MAC address, but in Network Settings, it still reports the old one. ...
9
votes
3answers
13k views

How do I remove or disable the Photos app in El Capitan?

When I try to drag Photos.app or certain other bundled system apps to the trash in El Capitan, I get the error “Photos.app” can’t be modified or deleted because it’s required by OS X. The solution ...
3
votes
2answers
10k views

Mac OS/X won't let me mkdir /usr/share/tomcat6, even as root

Running MacOS Sierra (10.12.6) me $ sudo su root sh-3.2# bash bash-3.2# pwd /usr/share bash-3.2# mkdir tomcat6 mkdir: tomcat: Operation not permitted bash-3.2# chmod g+w /usr/share/ chmod: Unable to ...
6
votes
2answers
1k views

How to recreate /usr/local with SIP/rootless mode on El Capitan?

With rootless mode enabled (a.k.a System Integrity Protection) it turns out you can remove /usr/local but cannot recreate it: $ sudo rm -rf /usr/local $ sudo mkdir /usr/local mkdir: /usr/local: ...
2
votes
2answers
20k views

OSX EL Captain customization and themeing

I don't like the new dock, I don't like the new folders, I don't like flat or may be I am bored of looking at same stuff. But really I still miss OSX Lion/Mavericks 3D dock and a more lively user ...
10
votes
1answer
3k views

El Capitan Remove Finder from Application Switcher (cmd tab)

I'm having trouble removing the Finder icon from the application switcher in El Capitan. The guides seem to be all from 2012 - I get permissions errors (even using sudo) when I try to update Info....

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