Results 1 to 6 of 6

Thread: Permissions 101

  1. #1
    Permissions 101
    Dogbreath's Avatar
    Member Since
    Sep 03, 2010
    Location
    Charlotte, NC
    Posts
    490
    Specs:
    mid 2010 Mac Mini OS 10.6.8 (SL), 2.66 GHz C2D, 8GB RAM, 30 in. Cinema Display
    Permissions 101
    My intention with this thread is to try to understand a little more about Mac OS. My questions may be perceived as stupid and elementary, but I sincerely want a deeper understanding of my Mac in order to get maximum performance out of it. So I'll start with Permissions... What causes permssions get changed or corrupted? What are the things to avoid in order to not change them? Which is the best way to repair them...using Disk Utility without the install disk, using Disk Utility WITH the install disk, or using Onyx to repair permissions? Do all 3 methods achieve the exact same results? I have just completed a clean wipe, format and install of Mac OS 10.6.8 and I want to stick with Snow Leopard. I have fresh installs and their updates of all my Apple and 3rd party apps. I have set up Outlook and Mac Mail accounts. Before I activate Time Machine and set up Carbon Copy Cloner on an external hdd, I want to clean up everything so that I have a pristine initial TM backup and CCC bootable backup. By the time I had done all my installations, there are already permissions that have been changed or whatever it is that happens to them. That made me wonder how that happened although I haven't done any serious computing yet. Thanks in advance.

    I haven't purchased CCC yet. Do I install it on my external hdd and then treat it like an internal hdd and load my OS, apps and their updates there...or does it supposedly work like Time Machine and copy over from the internal hdd?

  2. #2
    Permissions 101
    Dysfunction's Avatar
    Member Since
    Mar 17, 2008
    Location
    Tucson, AZ
    Posts
    6,821
    Specs:
    Way... way too many specs to list.
    Start with this link:

    Troubleshooting permissions issues in Mac OS X


    Please take note, that the utility does NOT repair permissions in your home directory (you need to use the reset password utility to do that, oddly enough).

    Also, all the methods you mentioned are identical. Oh and I believe that rebuilding permissions is far too oft recommended, and no where near as useful on OS X as it was in prior Apple OSs (OS9 etc)
    mike
    This machine kills fascists
    Got # ? phear the command line!

  3. #3
    Permissions 101
    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Location
    Toronto
    Posts
    19,396
    Specs:
    2012 13" MBP (2.5 i5, 8GB)
    Quote Originally Posted by Dysfunction View Post
    Also, all the methods you mentioned are identical. Oh and I believe that rebuilding permissions is far too oft recommended, and no where near as useful on OS X as it was in prior Apple OSs (OS9 etc)
    Agreed. Very rarely are permissions the root of the issue.

    I don't think your question is elementary at all. In fact, it's great to see people interested in learning more about how OS X works. So, let's start. What causes them to change? The answer to that, however frustrating, is "anything." As long as something as the rights to do so, anything can change permissions. They aren't difficult to change if those privileges are gained so coming up with an easy answer for this one is near impossible. That said, very few things will change permissions maliciously.

    As noted, permissions can change quite easily which would be why they appear to have been modified so easily. However, most of the permission fixes that DU reports won't seriously hamper the operation of OS X. While it might be worth fixing at some point, you don't need to watch them like a hawk.
    Important Links: Community Guidelines : Use the reputation system if you've been helped.
    M-F Blog :: Write for the blog
    Writing a Quality Post

  4. #4
    Permissions 101
    Dogbreath's Avatar
    Member Since
    Sep 03, 2010
    Location
    Charlotte, NC
    Posts
    490
    Specs:
    mid 2010 Mac Mini OS 10.6.8 (SL), 2.66 GHz C2D, 8GB RAM, 30 in. Cinema Display
    Thank you both for that...learned quite a bit. I think I was trying to compare it to the Registry in a Windows OS. Does anybody have any input regarding Carbon Copy Cloner?...(please see OP).

  5. #5
    Permissions 101
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,282
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    I haven't purchased CCC yet. Do I install it on my external hdd and then treat it like an internal hdd and load my OS, apps and their updates there...or does it supposedly work like Time Machine and copy over from the internal hdd?
    You install CCC on your Mac's hard drive just like any other application. It then will clone the contents of your hard drive including the recovery partition to an external hard drive. In the process it will render the external hard drive bootable so that you can boot from it in case of an emergency. It will do a complete copy the first time it runs but thereafter it only copies the changes. The external hard drive has to be formatted as Mac OS Extended Journaled using the GUID scheme.

  6. #6
    Permissions 101
    Dogbreath's Avatar
    Member Since
    Sep 03, 2010
    Location
    Charlotte, NC
    Posts
    490
    Specs:
    mid 2010 Mac Mini OS 10.6.8 (SL), 2.66 GHz C2D, 8GB RAM, 30 in. Cinema Display
    Wow...easy!. Thanks...I love this place.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Terminal 101-1
    By cradom in forum OS X - Apps and Games
    Replies: 6
    Last Post: 10-03-2013, 08:56 PM
  2. Replies: 3
    Last Post: 02-16-2012, 06:13 PM
  3. Backups 101
    By protem in forum OS X - Operating System
    Replies: 4
    Last Post: 04-07-2010, 09:13 PM
  4. partition 101
    By limsilas in forum OS X - Operating System
    Replies: 2
    Last Post: 05-08-2008, 09:14 PM
  5. Burning 101
    By JWBear in forum Switcher Hangout
    Replies: 4
    Last Post: 03-14-2008, 07:48 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •