Allowing and restricting which users can perform what operations of particular files

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2
votes
2answers
6k views

Preview refuses to open pdf file, incorrectly claiming a permission issue

I had to force quite Preview (it became unresponsive after trying to open a 200Mb animated gif), but after re-starting it some files there were open before no longer open. Instead an error box pops up ...
68
votes
10answers
68k views

How to use pip after the OS X El Capitan upgrade?

After the El Capitan update, I am unable to run pip install. The error I get is that the "operation is not permitted" when pip tries to create new folders while installing. creating /System/Library/...
0
votes
1answer
602 views

how to fix permission on default apps in el capitan

Tr Trouble in permission How fix it? permission in group wheel = read only full permission = only system group
2
votes
1answer
81 views

Concerned I may have accidentally dropped malware (or something) onto my system

First time poster in this part of Stack Exchange - apologies I have posted in the wrong section. In short I have an iMac running 10.8. Most of the time I quite happily get about my business but about ...
9
votes
1answer
24k views

Can't write to /usr/lib

I upgraded to OS X El Capitan and tried to install a new app (MPLAB X from Microchip) but I got an error because it couldn't copy a library to /usr/lib even when it asked for root password. I tried to ...
0
votes
0answers
125 views

Unexpected Finder message “This item will be deleted immediately”

I made a second user account (test, admin privs) and set the permissions of my second hard drive so that this account could read & write. The only thing I changed was the first line and then ...
0
votes
0answers
204 views

Shared Folder - File Permissions Never Right & Files hidden for some users

I'll go ahead and clarify how I set this up. Skip down to "Issues at Hand" if you want what the problems are. Current Setup: We currently have 10 mac computers, 4 of which are mac mini's and 6 are ...
1
vote
1answer
136 views

How do I check the effective file permissions/accessibilty for/of a given file and a given user?

How do I check the effective file permissions (including ACLs)/accessibility for/of a given file and a given user (including service/system accounts) without checking the whole path manually? Example:...
0
votes
0answers
26 views

What does file locking do, these days?

I'm publishing some files on Dropbox, sharing drafts for public review. Once I get to the final official revision, I'd like to lock it to avoid inadvertent changes. I'm using Pages to write and ...
0
votes
1answer
34 views

Trouble moving tons of files from OS X server attached RAID to NAS

I am trying to move many thousands of files to a Synology NAS. Thanks to excellent posts here and superuser, I have been using rsync a lot. But in this case, I'm getting a very high failure rate due ...
0
votes
0answers
95 views

Repair Disk failed

I try to repair a disk because my Mac still is on grey screen during start. I created a USB Yosemite bootable and I can use Terminal. I tried with: diskutil repairvolume disk0s2 But I get the ...
1
vote
1answer
64 views

Restore permissions on /usr?

Through a series of unfortunate events I managed to run: sudo chown -R `whoami`:admin /usr on my 10.10.5 machine. This has left it in an awkward state. I can no longer sudo commands as sudo is no ...
0
votes
0answers
20 views

What kind of file require the executable flag

I'm aware that the mach-o exectuable in BUNDLE.*/*/MacOS/* needs the +x flag to work, same goes for the mach-o cli executables and *.dylib. Then most scripts need it to run. But are there any ...
2
votes
1answer
58 views

Blank dock, command+tab menu icon for application - RubyMine 7.0

I'm having a problem with the application icon for Jetbrains' RubyMine 7.0 not showing up in the dock. This used to work just fine before I cloned/renamed the user accounts on my Mac, running ...
2
votes
1answer
176 views

External Harddrive Permissions Changed / No Access

my external harddrive permissions have suddenly changed. I am getting mount errors in Disk Utility when I try to verify the disk. When I Get Info for the drive in question, it states that I have "NO ...
0
votes
0answers
22 views

Permissions sharing between MySQL and myself in Yosemite

I would like to have full access (read/write) on everything in the MySQL data directory (/usr/local/mysql/data). Then an application running as "me" could create/edit/delete every data. I tried to ...
0
votes
0answers
105 views

Error 43, unable to open files on external hard drive using Preview

Using Snow Leopard 10.6.8 I can't access files with Preview on my 2011 WD myBook 1TB external hard drive. When I try to open a file it says "application can't be found" follows up with "an ...
0
votes
0answers
410 views

Preview.app can't open pdf after Adobe Acrobat Installation

After installing adobe acrobat I can no longer use preview.app or apps like clearview to open pdf files under my account. I have tried creating a new user, and logged in, and i can view it no problem....
0
votes
0answers
100 views

External HDD Permissions Issue

I have a new 2TB Western Digital external hard drive (My Passport Ultra) that I want to use for backups. I have it formatted as Mac OS Extended, with 1 Apple Partition Map partition. When I Get Info ...
0
votes
1answer
314 views

How do I run a java application that wants to bind to ports 80 and 443?

Okay, so I turn on my laptop, sign in to my regular user account and proceed to open/run a Java-based, HTTP-proxying application called burp via Terminal.app. It executes normally but refuses to bind ...
1
vote
2answers
52 views

Trying to replace volume sound in OS X to what was present before. Encountering permissions problems even as root. Help?

I'm trying to get the old volume feedback noise on my MacBook. I have a copy of the sound file but the system is refusing to let me replace it, even as root. I found this article that also explained ...
0
votes
2answers
79 views

Symbolic linking to Photos from another user

I am running El Capitan Beta, but this question would also apply to Yosemite. I want another account's (account B) "Photos" app to link to my primary account's (account A) Photos library without ...
0
votes
0answers
31 views

Protect changes to plain text file written by standard user's execution of bash script

I have written a simple bash script that I want to use as a time clock for employees (work-studies) in my computer lab. The script works great. 1. Each work-study has two icons (two separate bash ...
1
vote
1answer
53 views

Sharing folders between 2 users

I just downloaded a virtual box VM which I will be sharing with my wife. Both my wife and I have accounts on our mac. I copied the downloaded VM into /Users/Shared/MyNewVM Then I went into System ...
0
votes
1answer
94 views

Yosemite file permissions/ownership issue

I'm no stranger to OSX and a while back I upgraded to Yosemite at rollout. I'm a web developer an I'm encountering a strange behaviour with file permissions ever since upgrading. For example, I'm ...
0
votes
1answer
20 views

Monitor processes during startup that changes umask

Two days ago I began noticing permission problems with my web projects, I had to keep resetting permission so apache could read or write. What a pain! After hours of confusion I finally realized that ...
14
votes
3answers
2k views

In OS X, is it better to put apps in /Applications or in ~/Applications?

I've noticed that pkg installers and obviously apps installed from the App Store) put apps in the /Applications file, yet Steam usually puts them in ~/Applications. Both work, and both are writable by ...
0
votes
2answers
122 views

start.command permission denied even after chmod

I have been trying to run my server.command file forever. I have tried changing access privileges with chmod x+u pressing enter then dragging the file into Terminal and pressing enter, but when I do, ...
0
votes
1answer
71 views

USB hard drive permissions

I have a JBOD with a couple of disks in that are mirrored using Disk Utility and have a single partition formatted as HFS+. The purpose of this drive is to hold an iTunes library (sharing to AppleTV) ...
0
votes
1answer
540 views

403 forbidden on Apache vHost

I'm using Mac OS X 10.6.8 and I'm trying to configure a vHost. I configured it and it gave me a 403 Forbidden, and I'm having trouble giving _www permission to read/write in ~/Document/workspace/dev ...
0
votes
2answers
2k views

sudo: effective uid is not 0, is sudo installed setuid root?

I was trying to remove some folders (python) via sudo rm in Terminal and got this message: sudo: effective uid is not 0, is sudo installed setuid root? I already tried to verify/repair disk ...
3
votes
0answers
797 views

Get rid of the “Instruments wants permission to analyze” prompt, from command line, in Yosemite

In our jenkins build automation environment we have several OSX nodes, now all updated to Yosemite, where we run ios simulator tests. The problem is that on any newly introduced node simulator tests ...
0
votes
0answers
162 views

CPU usage for User tasks consuming up to 80%; 0% Idle. What does it mean?

I have noticed that my CPU usage is always near 100%. 0% of it is for Idle. About 20% average is for System tasks. The rest is going to User tasks (80%). But if I look at individual tasks don't see ...
0
votes
0answers
299 views

Application permissions for Standard user

I use my Mac as a Standard user. When I first set it up, all applications were downloaded/installed using the Admin user. Running latest OSX 10.10.3 When using my Mac as the Standard user, every time ...
0
votes
0answers
50 views

User Data on SDXC?

I am assisting a user who has reach full disk capacity (120GB). The disk cannot be replaced by one with higher capacity (not without replacing the whole logicboard) and as a the laptop is designed ...
3
votes
2answers
136 views

Homebrew mutt(1) file permission weirdness

I just installed mutt ('brew install mutt') running as myself (uid=501(john)), no sudo. It seems to have worked, but now I've got a couple of weird permission problems. When I run mutt, email ...
0
votes
1answer
75 views

10.9 server keeps losing correct permissions on /private/tmp

about 2-3 a week our 10.9 server machine starts filling logs with 'unable to write to /private/tmp/..." errors. many per second. the permissions to go 755 apparently. it's easily fixed with a ...
0
votes
1answer
477 views

Upgraded from Mavericks 10.9.5 to Yosemite 10.10.3. Permissions are all messed up

If I try to move things to external hard drives I am asked for my admin password. If I try to move things in or out of the Applications folder I am asked for my password. I am asked for my password ...
0
votes
0answers
40 views

Making a Damaged USB Writable for Drive Genius?

Apologies for being (sort of) a repost from Unable to be Repaired & Further Problems but I had some further questions and I was worried they wouldn't be answered. I followed Froggard's advice and ...
13
votes
3answers
9k views

Make files in `/usr/local` writable for homebrew

I've been trying to get homebrew working nicely, but it appears everything inside /usr/local isn't writable, and everything falls over. It keeps telling me to recursively chown /usr/local, and I ...
0
votes
1answer
164 views

Software Update Permissions error

This is a really weird one. Anytime I try to update any OSX items via System Update I get a bizarre permissions error. The screenshots tell the story... Here is my attempt to run the update: Here ...
0
votes
1answer
41 views

What would cause normal files to be hidden from the Finder but not the terminal?

I exported a set of photos from my wife's computer to mine over a WiFi share. I opened the directory in Finder and it said that there were 0 files. I know I've seen the Finder lag before on ...
1
vote
3answers
1k views

Upgraded to Yosemite, mkdir now says “permission denied”

I upgraded from OS 10.7.3 to 10.10.3. Now I get "permission denied" when I run mkdir on folders that I own and have full permission. For example : I own a folder called "/library/webserver/...
0
votes
1answer
42 views

Changing ownership of .cpan

I'm getting back into Perl; several months ago I had to have a new hard drive installed and so had to start over again. When I try to update CPAN, I get this message: Your configuration suggests that ...
1
vote
1answer
768 views

Cannot create home folders on the server for network accounts

I have a problem with creating home folders on the server for network accounts. The goal is to share the same files on multiple devices. A quick overview of what I do: I go to the Server.app. I ...
1
vote
0answers
21 views

How do I share with different permissions from local host?

I want to create a user tvuser that has read access to a volume on my mac (Mountain Lion.) NO one else has network read access. At this point when I click sharing, enable AFP, Everyone, and Staff ...
0
votes
1answer
41 views

Mac OSX installer is disabled or not accessable

I have a persistent problem where my installer is not associated with pkg files. My installer is showing that is not available (See screenshots) In the past I have had to re-associate my pkg files ...
1
vote
1answer
204 views

Access back-up of Pictures folder on network drive

I backed up the contents of an old Macbook which was probably running 10.5.8 by copying ~/Pictures and ~/Documents to a network drive, right before the laptop died with the click-of-death, which ...
0
votes
1answer
80 views

Why can a user on OS X open some directories of other users?

I run OS X Yosemite (10.10.3). From the sysadmin account, I created a standard account. This account can't open standard directories like Documents or Pictures in the admin’s user folder. It can ...
0
votes
1answer
1k views

Curiously removed permissions

I have a severe permissions' issue. I hope there are some really clever people out there, who might know how to solve this using the Terminal, expert-level hacking or in some really simple way so I at ...