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powerbook G4 delete files?

1802 Views 5 Replies Latest reply: Nov 26, 2011 2:11 PM by Michael Wasley RSS
sue252 Calculating status...
Currently Being Moderated
Nov 25, 2011 3:20 PM

How do I remove the files from my powerbook G4 so that someone else can use it?

PowerBook, Mac OS X (10.5.8)
  • Texas Mac Man Level 8 Level 8 (44,195 points)
    Currently Being Moderated
    Nov 25, 2011 5:59 PM (in response to sue252)

    See Mac OS X: How to zero all data on a disk

    http://docs.info.apple.com/article.html?artnum=107437

     

    If you are going to sell the Mac, reload the system software & sell it with the software/restore discs.

     

     Cheers, Tom

     G4 1.25HGz MDD, PB 12" G4 1.5GHz, Mac OS X (10.5.8), (10.4.11, 9.2.2) iSight,iPad2 
  • cornelius Level 6 Level 6 (17,825 points)
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    Nov 25, 2011 6:07 PM (in response to sue252)

    The most effective way is to boot from the install disk, launch Disk Utility, select the drive (manufacturer ID) in the sidebar, select the Erase tab, and click Erase. If you want to do a secure erase the choose security options and do a multiple pass. 7 or 8 passes will be enough. Then launch the installer and install the software. When the setup assistant comes up, shut down. When the new user starts up the computer the setup assistant will come up and the new user can setup a new account. For more detailed directions, please post back.

     

    cornelius

  • Michael Wasley Level 5 Level 5 (6,810 points)
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    Nov 26, 2011 2:09 AM (in response to cornelius)

    I would have thought a seven pass zeroing was excessive unless you have something top secret or highly incriminating on your HD. Single zero would seem adequate for anyone else.

  • cornelius Level 6 Level 6 (17,825 points)
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    Nov 26, 2011 11:30 AM (in response to Michael Wasley)

    You probably missed this:

    If you want to do a secure erase then choose security options and do a multiple pass.

    For greater security the data must be overwritten more than once.

     

    cornelius

  • Michael Wasley Level 5 Level 5 (6,810 points)
    Currently Being Moderated
    Nov 26, 2011 2:11 PM (in response to cornelius)

    Probably, but I didn't miss Apple's advice on erasing HDs in Leopard which regards a single pass zero as providing 'good security'. It also points out that a seven pass zero in DU conforms to US DoD 5220.22-M specification; that would appear to be overkill for the average Mac user.

     

    I also came across this at some time which claims that "The 7-pass and 35-pass options are unnecessary for normal users and extremely lengthy;  only the CIA, NSA, etc. can recover much, if anything, after 1 pass".

     

    Of course it all depends on how important the security of your data is (patients' medical records, state secrets etc obviously need more care). It will also depend on the level of your paranoia/guilt.

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