How to "clean" Format a mac? and what is "special permissions"?

Discussion in 'Mac Basics and Help' started by 10-Dee-Q, Jul 31, 2006.

  1. 10-Dee-Q macrumors 6502

    May 10, 2006
    Bandung, West Java, Indonesia & Singapore
    hi, i bought mbp few months ago , and everything has been good experience being a switcher from a XP user.

    But yesterday i installed Aperture on My MBP and i noticed that the start up time of my mbp has incresed significantly, i wonder what causes this ?

    as a result i erased my "macintosh HD" using disk utillity in the Recovery cd, and after that i install the mac OS again, everything went well, but when i veryfy disk permissions in utilities>disk utillity>... i get some noticed about this uses special permissions, etc, though at the bottom of it , it said that the disk has been veryfied and repaired sucsesfully, but it still bother me cause i never get that kind of noticed before! and furthermore my system is new, i just reformat the whole hard disk , and i haven't install anything except the original softwares from the recovery CD.

    is there something wrong with my MBP ?
    also did i use the correct method to "reformat" my System or is there any otheer better way to "format" the HD and install a fresh OSX?

    and what causes aperture to "Slowind down" my start up time on my previous install ?

    thx faor all the help, my experiece switching to mac has been great and this forums makes it better :p
  2. funkychunkz macrumors 6502a


    Jun 1, 2005
    Ottawa, Canada
    Apple states specifically in their support documents online that those types of messages can be safely ignored. A special permission is a file or folder with permissions set to be other than the usual file default (for it's directory ie system folder). Weather this happens when multiple users need access to the file, I don't know, but apparently it's nothing bad.

    Reformatting in osx is quite a different matter than in windows. For one it's usually completely unnecessary, and two it doesn't get anything done. It is only useful to users who need to work in a certain environment like with a unix formatted disk. For almost every other user you should never change your formatting (leave it HFS+ (Extended) Journaled, ie, HFSJ). But back to your question, the equivalent to a reformat (I'm not sure, I've never needed it on windows) would be a fresh install. When you boot up from the install DVD and select 'fresh install', and it will wipe the disk before installing anew. This will also result in a de-fragmented new copy.

    As for your slow bootup time I wouldn't be concerned unless startup took more than 2-3 minutes regularly or intermittently spent long times at the grey screen. Since you just installed I'm guessing that it had to initialize something (extension, startup item) for the first time and so was not cached (like everything was prior to that).
  3. quigleybc macrumors 68030


    Jun 17, 2005
    Beautiful Vancouver British Columbia, Canada

    Everything is fine

    "special" permissions are not important.

    you don't need to reinstall, and/or erase your HD EVER, unless things have gone very wrong.

    Aperture is a very heavy app, and unless you are a pro photographer using a lot of RAW photo images, you should be good with iPhoto.

    In Mac, things really are "just that easy..." :)
  4. 10-Dee-Q thread starter macrumors 6502

    May 10, 2006
    Bandung, West Java, Indonesia & Singapore
    thx all after upgrading my OS X to the 10.4.7 there's nomore "speceial permissions, etc" everything is clean like the way i like it :p
    once again thanx for all the help here :p
  5. tuqqer macrumors member

    Jun 28, 2005
    Boulder, CO
    10-Dee-Q, I'd be curious to find out how Aperture works on that MacBook Pro. My understanding was that it was one of the most cpu-intensive programs out there, and it really slowed things down unless you had a few gigs of RAM.
  6. 10-Dee-Q thread starter macrumors 6502

    May 10, 2006
    Bandung, West Java, Indonesia & Singapore

    hmmmi t runs okay for me , but i have no comparison, as ths MBP is my first ever mac.
    my MBP SPek
    15', 256 MB ATi X1600 VRAM, 100GB HDD, 2G DDR 2 RAM.

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