Skip navigation
This discussion is archived

Secure Empty Trash hangs

22613 Views 91 Replies Latest reply: Jan 26, 2008 8:39 PM by ScrewedByApple RSS
  • leoblaisdell Calculating status...
    Currently Being Moderated
    Dec 12, 2007 7:04 PM (in response to ccBob)
    Since my last posting, I've found that I do not have to disable Time Machine, but I do have to dismount both partitions on my single external drive.
    1.42 GHz PPC Mac Mini, Mac OS X (10.5.1), External LaCie FW Drive
  • Marcus Daniel Calculating status...
    Currently Being Moderated
    Dec 12, 2007 7:19 PM (in response to leoblaisdell)
    Unmounting the external Time Machine Drive or not, Time Machine on or of or anything else I have tried make no difference whatsoever. When my trash is apparently empty and I put one item in, then select secure empty trash there are ALWAYS 6 items in there that never get deleted and my Finder becomes unresponsive until I have to force quite it.
    iMac G5 iSight PowerPC G5 1.9GHz, Mac OS X (10.5.1), 1.5GB RAM
  • Marcus Daniel Level 1 Level 1 (5 points)
    Currently Being Moderated
    Dec 12, 2007 7:21 PM (in response to Marcus Daniel)
    Interestingly enough, there are also 6 items that report errors every single time when I run a Permissions Repair with Disk Utility... any connection there maybe?
    iMac G5 iSight PowerPC G5 1.9GHz, Mac OS X (10.5.1), 1.5GB RAM
  • VIDEASTIC Calculating status...
    Currently Being Moderated
    Dec 18, 2007 10:14 AM (in response to Barry Clarke1)
    Don't know if somebody already mentioned it. The workaround is to relaunch the finder (alt-option-escape, go to finder and relaunch).
    Cheers.
    Macbook Pro 17" C2D, Mac OS X (10.4.9)
  • Mandrin M. Calculating status...
    Currently Being Moderated
    Dec 18, 2007 12:09 PM (in response to VIDEASTIC)
    I used your workaround and after the finder relaunched, my trash was empty. Do you know if the finder did the Secure Empty of the trash or just did an Empty Trash?
    I realized that if you are using Time Machine, the file you do a Secure Empty Trash on may still be on your Time Machine backup. I started using disk utility to create a secure disk to store anything I don't want read by others.
    iMac 20", Mac OS X (10.5.1), 2.1 GHz PowerPC G5
  • krazytekn0 Calculating status...
    Currently Being Moderated
    Dec 18, 2007 2:23 PM (in response to Barry Clarke1)
    Please note: Secure Empty Trash will keep your files from data recovery software but will not protect you in the event of a real investigation. See here http://rixstep.com/2/20030314,00.shtml
    MacBook Core 2 duo, Mac OS X (10.5.1)
  • Mandrin M. Level 1 Level 1 (0 points)
    Currently Being Moderated
    Dec 18, 2007 4:10 PM (in response to krazytekn0)
    Additional information.
    From unix man pages:
    unix srm NOTES:

    The -s option overrides the -m option, if both are present. If neither
    is specified, the 35-pass Gutmann algorithm is used.

    Development and discussion of srm is carried out at <http://source-
    forge.net/project/?group_id=3297>, which is also accessible via
    <http://srm.sourceforge.net>.
    iMac 20", Mac OS X (10.5.1), 2.1 GHz PowerPC G5
  • Stuart Blake Tener Level 1 Level 1 (15 points)
    Currently Being Moderated
    Dec 18, 2007 7:05 PM (in response to krazytekn0)
    krazytekn0 wrote:
    Please note: Secure Empty Trash will keep your files from data recovery software but will not protect you in the event of a real investigation. See here http://rixstep.com/2/20030314,00.shtml


    Krazytekn0:

    I read the security hoax article, and it does speak rather interestingly about the DoD or NSA type wipes, but what is most interesting is that Disk Utility already comes with Dr. Guttman type secure erase built into it for all Leopard users to leverage for free!

    It secure erases free space, and it can secure erase an entire drive as well, so why would this product even get purchased?


    V/R,

    Stuart
    PowerBook G4 / MacBook Pro, Mac OS X (10.5.1)
  • krazytekn0 Level 1 Level 1 (15 points)
    Currently Being Moderated
    Dec 18, 2007 8:27 PM (in response to Stuart Blake Tener)
    Stuart, hey thanks for the correction, I had no idea disk utility had Guttman algorithm, that's good to hear. (that'll show me to do my homework)

    You know, I'm looking at Disk utility right now, and I'm not finding anything in regards to this though... it looks like it just does a 35 pass zero out, which is still not that useful when going up against hardware recovery systems... What am I missing? I must be getting pretty dense lately if I can't find this.

    I also wasn't insinuating that you need to purchase this, I just feel that article is a good source for the info on the Guttman method.
    Message was edited by: krazytekn0

    Message was edited by: krazytekn0
    MacBook Core 2 duo, Mac OS X (10.5.1)
  • krazytekn0 Level 1 Level 1 (15 points)
    Currently Being Moderated
    Dec 18, 2007 8:29 PM (in response to krazytekn0)
    Ok I see it in the srm docs... nevermind me, just going nuts over here (I have a one year old son therefore I'm working at about 35% of my normal brain power)
    MacBook Core 2 duo, Mac OS X (10.5.1)
  • Stuart Blake Tener Level 1 Level 1 (15 points)
    Currently Being Moderated
    Dec 18, 2007 10:13 PM (in response to krazytekn0)
    krazytekn0 wrote:
    Ok I see it in the srm docs... nevermind me, just going nuts over here (I have a one year old son therefore I'm working at about 35% of my normal brain power)


    Hey, my niece is 3, I hear you on the little one...good excuse..really!

    That said, follows hereupon a technical article published by Apple, which does seem to speak with a marked level of specificity to the manners by which their secure erase in fact operates and functions when used against DASD.

    http://docs.info.apple.com/article.html?artnum=303462

    Secondly, I would imagine that most people are not interested in thwarting the assertion of a hardware threat against their DASD, but merely the ability for the average DASD scavenging technician to not see deleted data easily, or to not worry about selling a DASD to a friend or customer after it was used once or twice for some other purpose.

    I have read that some of today's DASD are not even really served by using Dr. Gutmann's CONOPS, but in general I feel better after having run the 35-Pass Dr. Gutmann technique two or three times before reusing the DASD.

    Lastly, one friend of mine (whom is an EE type back in Maryland) said that if you could somehow upset the servo motor control information on a DASD, you would for all intents and purposes render the DASD useless for being reviewed with any type of software on an average PC, Mac, or other Unix Workstation other than Mac.

    I hope your family has a wonderful and blessed holiday season.


    Stuart
    PowerBook G4 / MacBook Pro, Mac OS X (10.5.1)
  • William Lane Calculating status...
    Currently Being Moderated
    Dec 19, 2007 5:57 AM (in response to Stuart Blake Tener)
    A question arising about secure deleting, as mentioned here


    http://docs.info.apple.com/article.html?artnum=303462

    Can anyone confirm that while doing the secure delete Disk Utility itself uses up a TON of HD space?

    I was playing with this feature last night and, on returning to the MacBook after about 2 hours discovered that approx. 80 gig of HD space had 'disappeared' and I was left with <300 k of available space. Yike!

    After quitting and restarting I discovered the 'Recovered Items' folder in the Trash. This folder contained a disk image which was almost equivalent to the amount of HD space that I had lost. Emptying the Trash of course recovered all that space.
    MacBook 2.0 ghz, Mac OS X (10.5.1), 2 gig of RAM
  • AppleTK Calculating status...
    Currently Being Moderated
    Dec 31, 2007 1:53 PM (in response to Barry Clarke1)
    Having trouble emptying the trash securely.

    Trash hangs when trying to empty securely, but not regular.

    Ran Repair Disk Permissions by using Disk Utility Found in the Utilities Folder.

    Restarted.

    Trash Emptied Securely without a problem
    imac, Mac OS X (10.5.1)
  • Mandrin M. Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jan 2, 2008 7:50 PM (in response to AppleTK)
    I ran "Repair Disk Permissions", and received several Warnings. eg: 2008-01-01 19:53:19 -0600: Warning: SUID file "System/Library/CoreServices/Finder.app/Contents/Resources/OwnerGroupTool" has been modified and will not be repaired.
    2008-01-01 19:53:22 -0600: Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
    2008-01-01 19:54:28 -0600: Permissions repair complete
    I did a "Restarted"; then tried to "Secure Empty Trash", and "Finder" hung. I find the only way to "Secure Empty Trash" is to eject my external drive (which in my case is the one I use for Time Machine) then, "Secure Empty Trash" and use "Disk Utility" to remount the drive.
    Does anyone else find this to be true?
    iMac 20", Mac OS X (10.5.1), 2.1 GHz PowerPC G5
  • Stuart Blake Tener Level 1 Level 1 (15 points)
    Currently Being Moderated
    Jan 2, 2008 8:11 PM (in response to Mandrin M.)
    Dear Sir:

    Indeed the quote that follows hereupon is certainly a red herring, and not the real issue, as every time I eject my external HD, secure empty trash works flawlessly.

    Clearly (in my view) between the inability to format an external drive with Disk Utility, and the problems with secure empty trash when a USB drive is plugged in, there seems to be quite a real chance that the USB driver is severely bugulant!

    However, I do point out that there is a work around that I have tested many times that allows you to keep your external drive plugged in!

    1) Enter a terminal prompt
    2) cd to the current user's ".Trash" folder
    3) type in "srm -mrfvz *"

    This will only blow away trash for the current user, but it does allow you to keep your external plugged in though.

    Stuart

    Mandrin M. wrote:
    I ran "Repair Disk Permissions", and received several Warnings. eg: 2008-01-01 19:53:19 -0600: Warning: SUID file "System/Library/CoreServices/Finder.app/Contents/Resources/OwnerGroupTool" has been modified and will not be repaired.
    2008-01-01 19:53:22 -0600: Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
    2008-01-01 19:54:28 -0600: Permissions repair complete
    I did a "Restarted"; then tried to "Secure Empty Trash", and "Finder" hung. I find the only way to "Secure Empty Trash" is to eject my external drive (which in my case is the one I use for Time Machine) then, "Secure Empty Trash" and use "Disk Utility" to remount the drive.
    Does anyone else find this to be true?
    MacBook Pro, Mac OS X (10.5.1)
1 ... 3 4 5 6 7 Previous Next

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.