PaulinFrance

Q: "Do not enter" sign after iDefag finished

My wife's MacBook Pro (17") running 10.6.8 was sluggish so I ran iDefrag 2.1.1 successfully. It was still sluggish so I ran it again. (Both times restarting using the prompt in iDefrag.) The second time it successfully finished the defrag but when I restarted the MBP the Apple appeared at initial startup, the grey wheel spun for a bit and then another grey screen appeared with a grey "do not enter" symbol and the grey wheel spinning eternally. (The "do not enter" sign/symbol is a circle with the slash through it.)

 

I have booted her MBP as a target disk connected to my MBP (also a 17" running 10.6.8). I can see and access everything on her hard drive no problem. I tried rebooting my MBP using her MBP and I get the same "do not enter" sign.

 

So I ran Disk Utility from my MBP and it said "the volume appears to be OK."

 

So I bought and ran DiskWarrior 4.4 (I had DW 4.0 but it wouldn't run on 10.6.8). It says that the "drive is functioning normally".

 

I then used DW 4.4 to "Repair Disk Permissions" and "Check All Files & Folders" and it reported:

 

Open error 18446744073709551594: "unknown error: -22" on usr/libexec/postfix/error

Open error 18446744073709551594: "unknown error: -22" on usr/libexec/postfix/qmqpd

Open error 18446744073709551594: "unknown error: -22" on usr/libexec/postfix/trivial-rewrite

Open error 18446744073709551594: "unknown error: -22" on usr/libexec/postfix/virtual

 

...then a bunch of others with the same Open error number.

 

Then it said that a bunch of .plist (Epson, HP and others) cannot be repaired.

 

Then I rebuilt the directory and it said: "All file and folder data was easily located." "Comparison of the original and replacement directories indicates that there will be no changes to the number or contents of files and folders."

 

 

Still the same problem at startup... "do not enter".

 

So I restarted holding command-v to see what it had to say and it reported numberous things, such as:

 

Can't load kext com.apple.driver.ApplefileSystmeDriver - failed to resolve library dependencies.

kext com.apple.driver.AppleFileSystmeDriver failed to load

 

Kext com.apple.iokit.IOAHCIBlockStorage - library kext com.apple.IOKIT.IOStorageFamily not found.

kext com.apple.driver.AppleFileSystemDriver failed to load (error 0xdc00800e)

 

The other kext that failed to load with the same error are:

 

com.apple.iokit.IOSCSIMultimediaCommandsDevice

com.apple.iokit.SCSITaskUserClient

 

Then I get:

 

Couldn't alloc class "IOSCSIPeripheralDeviceType05"

Couldn't alloc class SCSITaskUserClientIniter"

 

 

The OS install disks that came with this MBP are 10.6.3 and when I tried to do a re-install it said that it couldn't install on this Mac. So I thought that I'd install Lion and see if that fixes things but I can't find it on the store (maybe because Mountain Lion comes out next month?)

 

Any suggestions?

MacBook Pro, Mac OS X (10.6.3)

Posted on Jun 25, 2012 10:11 AM

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Q: "Do not enter" sign after iDefag finished

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  • by ds store,

    ds store ds store Jun 25, 2012 12:03 PM in response to PaulinFrance
    Level 7 (30,400 points)
    Jun 25, 2012 12:03 PM in response to PaulinFrance

    Find all copies of Disk Warrior and iDefrag and Trash it, don't ever use them.

     

    I'm hoping you made a backup copy of her files via Target Disk Mode, if not do that.

     

     

    Follow through the steps here, #8 Reinstall Just OS X should hopefully solve the issue, others as needed and tune up.

     

    Step by Step to fix your Mac

     

     

    Far as your corrupted preference files, see the OnyX #12 and #13 steps.

     

     

    Worst case you'll have to reinstall.

     

    How to erase and install Snow Leopard 10.6

     

     

     

    If you want to speed up a Mac, the best way to do this is to reduce the user content so only 50% of the hard drive is used (not more than 80%)

     

    Use the OnyX #12 routine to clear the caches, then reboot.

     

    Next use Carbon Copy Cloner and clone OS X partition to the blank external drive, you can hold the option key and boot from it, then erase the internal OS X partition and reverse clone.

     

    That will really totally defrag the entire OS X partition;  Applications, then System then User files written and the drive will be fast and all data on the first 50% of the drive where it's faster than the second 50% of the drive.

     

    My boot time is a mere 30 seconds on a 5,400 RPM drive, which isn't too bad without going to a SSD.

     

     

    Using a clone to defrag is better than a live iDefrag, as your working with a copy.

  • by Kurt Lang,

    Kurt Lang Kurt Lang Jun 25, 2012 12:36 PM in response to ds store
    Level 8 (38,009 points)
    Mac OS X
    Jun 25, 2012 12:36 PM in response to ds store

    Find all copies of Disk Warrior and iDefrag and Trash it, don't ever use them.

    While I can agree with iDefrag on that one, I can't with DiskWarrior. One, it doesn't do any kind of disk defragmenting. It has no feature to move files around. What it does do much better than any other utility is fix file table issues and other file problems. Such as cross-linked files.

  • by ds store,

    ds store ds store Jun 25, 2012 2:53 PM in response to Kurt Lang
    Level 7 (30,400 points)
    Jun 25, 2012 2:53 PM in response to Kurt Lang

    Kurt Lang wrote:

     

    What it does do much better than any other utility is fix file table issues and other file problems. Such as cross-linked files.

     

    OS X doesn't need repair, like it doesn't need maintenance utilities, however people tend to fall into "I need to do something" trap in the concern of keeping their machines running well.

     

    Others have a drive problem and a name like "Disk Warrior" tends to fill them with false hope as they try to struggle to find the real cause of their problem.

     

    The truth is OS X runs perfectly well if the sectors on the hard drive it sits on are working perfectly. Eliminate the failing sectors, eliminate the problems.

     

    As long as hard drives are being shipped with bad sectors, they fail later on or users move their hard drives while operating and strike the platters ruining data, and Apple continues not to employ background data verification and sector integrity checks, they will have problems., they will get conned by software like Disk Warrior.

     

    Outside of mechanical or electrical problems with hard drives, it's failing sectors corrupting data that's the #1 cause of problems, not OS X itself, it works just perfectly.

  • by Klaus1,

    Klaus1 Klaus1 Jun 25, 2012 3:01 PM in response to ds store
    Level 8 (48,913 points)
    Jun 25, 2012 3:01 PM in response to ds store

    That has to be the biggest load of rubbish I have read in a long time, and totally misleading to the OP.

  • by Kurt Lang,

    Kurt Lang Kurt Lang Jun 25, 2012 5:06 PM in response to ds store
    Level 8 (38,009 points)
    Mac OS X
    Jun 25, 2012 5:06 PM in response to ds store

    OS X doesn't need repair

    Please tell me you don't seriously mean this. There is no file system in existence that will not have at least the occasional problem.

    The truth is OS X runs perfectly well if the sectors on the hard drive it sits on are working perfectly.

    Uh, yes. And the same goes for any other OS ever written.

    Eliminate the failing sectors, eliminate the problems.

    Dead wrong. File systems and the files themselves can be damaged in a myriad of ways without having physical sector or other hardware related problems.

     

    Where in the world do you come up with these "facts"?

    it works just perfectly.

    Oh my word! That's just the kind of complete nonsense Mac haters LOVE to see Mac lovers type.

     

    There have been many cases in these forums alone where DiskWarrior was able to repair a drive's files or file system well enough for a user to at least back up their personal files when Disk Utility either declared the disk okay, or couldn't fix it.

  • by Király,

    Király Király Jun 25, 2012 5:59 PM in response to PaulinFrance
    Level 6 (9,848 points)
    Mac OS X
    Jun 25, 2012 5:59 PM in response to PaulinFrance

    Hi PaulinFrance

    What had your wife been using to make backups? Time Machine or some other program?

  • by ds store,

    ds store ds store Jun 25, 2012 7:14 PM in response to Kurt Lang
    Level 7 (30,400 points)
    Jun 25, 2012 7:14 PM in response to Kurt Lang

    Kurt Lang wrote:

     

    OS X doesn't need repair

    Please tell me you don't seriously mean this. There is no file system in existence that will not have at least the occasional problem.

     

    Right, and Disk Utility is there for that purpose.

     

    Outside of corrupted caches that the free OnyX takes care of, one doesn't need anything more really.

     

    File systems and the files themselves can be damaged in a myriad of ways without having physical sector or other hardware related problems.

     

    And Disk Utility is there for that too.

     

     

    File systems and the files themselves can be damaged in a myriad of ways without having physical sector or other hardware related problems.

     

    Sorry, just don't see that, that's what backups are for.

     

    There have been many cases in these forums alone where DiskWarrior was able to repair a drive's files or file system well enough for a user to at least back up their personal files when Disk Utility either declared the disk okay, or couldn't fix it.

     

    I don't see it much used around here actually and if it was a seriously viable tool, I certainly would have incorporated it.

     

    I've been using Mac's since day one, fixing them plenty and never had a need to use Disk Warrior, in fact I've had only one hard drive fail on me and it was due to mechanical reasons, it just died.

     

    I don't know of any Apple geniuses that use it, nor any of the Mac computer repair techs that use it.

     

    What I do see is desperate users  eager to grasp at a software solution that buy it, like they buy iDefrag or other software promises to "speed up" a Mac, like MacKeeper.

     

    IMO the large proportion of DW users have much bigger problems that they really should be replacing the troubled portion or zero erasing and reinstalling instead.

     

    Sorry, I'm just not sold on DW.

     

     

    Ask Linc Davis about his opinion on Disk Warrior, see what he says.

  • by R C-R,

    R C-R R C-R Jun 25, 2012 9:28 PM in response to ds store
    Level 6 (17,700 points)
    Jun 25, 2012 9:28 PM in response to ds store

    ds store wrote:

    I don't know of any Apple geniuses that use it, nor any of the Mac computer repair techs that use it.

    You are kidding, right? Every Apple genius I have ever talked to about it recommends DW for certain directory problems Disk Utility can't fix. Plus, I don't know of a single Authorized or independent Mac tech that doesn't have a copy of it for the same reason.

     

    Disk Utility is fine for most file system repairs but it uses relatively lightweight algorithms to repair rather than replace directory structures. DW rebuilds those structures completely, using info embedded in the file segments themselves to do so. As a result, it can correct some serious directory corruption problems that Disk Utility simply gives up on.

     

    The process also optimizes directory structures but that isn't of much importance with today's high performance drives with their large, adaptive caches, out-of-order R/W capabilities, & so on.

    IMO the large proportion of DW users have much bigger problems that they really should be replacing the troubled portion or zero erasing and reinstalling instead.

    How do you 'replace the troubled portion,' whatever that is supposed to mean? And it is a myth that a zero erase is a reliable or effective way to detect or map out bad sectors on modern disk drives. If a drive starts developing bad sectors it can't detect without outside help, it is unreliable & should be replaced. Period.

  • by ds store,

    ds store ds store Jun 25, 2012 10:12 PM in response to R C-R
    Level 7 (30,400 points)
    Jun 25, 2012 10:12 PM in response to R C-R

    If I have a corrupted directory that DU doesn't solve and I don't have a copy of the users data, I turn to Data Rescue, then I zero the entire drive and reinstall, or TM or reverse clone if not corrupted.

     

    I'm not screwing around at that point, I'm going to fix the thing, not "patch it" with DW.

     

     

    The name "Disk Warrior" envisions a champion software that can defeat all problems, it's very far from that in reality.

     

    It ensnares a lot of unsuspecting folks with it's name much like MacKeeper does.

     

     

    If one backups up their drive, TM or clone, then DW is essentially useless, DU fixes everything else.

     

    If one want's to prevent a lot of potential failures with hard drives, then the zero erase function to map off as many potential failing sectors in advance of laying data.

     

    I've been using Mac's since day one, I've went the whole DW route like ages ago, until I've found the real cause of the problems with hard drives, bad and failing sectors.

     

     

    Reducing bad sectors effect on hard drives

     

     

    Now I have narry any problems and my drives perform at peak performance.

  • by PaulinFrance,

    PaulinFrance PaulinFrance Jun 25, 2012 11:03 PM in response to Király
    Level 1 (0 points)
    Jun 25, 2012 11:03 PM in response to Király

    I have manually backed up all of her files onto an external drive. But I do not have a backup of her applications or operating system. Lesson learned. At this point I am tempted to backup her whole drive, then start over from scratch with a clean drive and OS.

  • by R C-R,

    R C-R R C-R Jun 25, 2012 11:55 PM in response to ds store
    Level 6 (17,700 points)
    Jun 25, 2012 11:55 PM in response to ds store

    ds store wrote:

    If I have a corrupted directory that DU doesn't solve and I don't have a copy of the users data, I turn to Data Rescue, then I zero the entire drive and reinstall, or TM or reverse clone if not corrupted.

    Not everyone has a spare drive to use with Data Rescue, nor does using it guarantee all files & their metadata will be restored to their original state.

     

    It ensnares a lot of unsuspecting folks with it's name much like MacKeeper does.

    It is nothing like MacKeeper. It is a "one trick pony" that does exactly what it claims to do: repair certain kinds of directory damage that Disk Utility can't.

     

    If one backups up their drive, TM or clone, then DW is essentially useless, DU fixes everything else.

    Even if you have perfect backups, DW can save hours of downtime lost to restoring files or reinstalling & updating the OS, just as DU repairs can. There is no point in doing more than is necessary to correct file system issues if that's all that is wrong with a system.

     

    If one want's to prevent a lot of potential failures with hard drives, then the zero erase function to map off as many potential failing sectors in advance of laying data.

    Any drive that has failing sectors is by definition a failing drive. Any drive that exhibits symptoms of failing sectors should be replaced. A zero erase won't fix it, nor will it under any circumstances map out sectors that are about to go bad.

     

    A zero erase does one thing & one thing only, & that is to write over sectors with an all zero data pattern to prevent recovery of the data it writes over. It doesn't read back the zero data pattern; in fact it treats both good & bad sectors the same since even bad sectors could have recoverable data on them. In short, it does exactly what Apple says it does & nothing more.

    I've been using Mac's since day one, I've went the whole DW route like ages ago, until I've found the real cause of the problems with hard drives, bad and failing sectors.

    It is obvious you don't really believe this. If you did, you would not recommend Disk Utility's Disk Repair for so many HD problems.

  • by R C-R,

    R C-R R C-R Jun 26, 2012 12:00 AM in response to PaulinFrance
    Level 6 (17,700 points)
    Jun 26, 2012 12:00 AM in response to PaulinFrance

    PaulinFrance wrote:

    At this point I am tempted to backup her whole drive, then start over from scratch with a clean drive and OS.

    If you decide to do this, see Mac OS X v10.6 Snow Leopard: How to Erase and Install for the Apple recommended method of doing so.

     

    Please note that nowhere in that Apple article is there any mention of a zero erase.

  • by Kurt Lang,

    Kurt Lang Kurt Lang Jun 26, 2012 8:28 AM in response to ds store
    Level 8 (38,009 points)
    Mac OS X
    Jun 26, 2012 8:28 AM in response to ds store

    And Disk Utility is there for that too.

    As I have already mentioned, and so has R C-R, Disk Utility is a very weak substitute for DiskWarrior. I don't even bother to launch DU when I want, or need to check out a drive. Can't tell you how many times DU said "No problems found." and then DiskWarrior fixed the same drive.

    Sorry, just don't see that, that's what backups are for.

    Assuming you have a means to backup your data, or do it at all. You have noticed, haven't you, that the majority of users never back up their data. They're all over the board, all you have to do is look.

     

    OP: My hard drive is having trouble/died. I lost all of my data! Please help me get it back!

     

    Anyone: Do you have a backup?

     

    OP: No!

    If I have a corrupted directory that DU doesn't solve and I don't have a copy of the users data, I turn to Data Rescue, then I zero the entire drive and reinstall

    You must have an awful lot of time on your hands if that's your normal method. A corrupted directory sits only in the first few cylinders of a drive. You can accomplish the same thing by doing a simple erase of the drive. The file table will be wiped and replaced with a new blank slate. Doing a zero erase to accomplish that is gross overkill and an utter waste of time.

  • by R C-R,

    R C-R R C-R Jun 26, 2012 12:57 PM in response to Kurt Lang
    Level 6 (17,700 points)
    Jun 26, 2012 12:57 PM in response to Kurt Lang

    Kurt Lang wrote:

    Doing a zero erase to accomplish that is gross overkill and an utter waste of time.

    Not to mention that, as explained among other places here, magnetic HD's don't actually store data in precise digital zeros & ones. Without error correcting data stored at the end of each sector modern high density drives would not be reliable. Since the drive has to read the sector's data & its error correcting data to determine if the sector is OK, & the sector's error correcting data is invisible to software, only the drive itself can detect sector-level problems, & it can do so only on reads.

     

    Fortunately, the drive does this on every read. Modern drives also automatically move the corrected data to spare sectors reserved for that purpose when a sector produces too many internal read errors. Again, this is invisible to software, so there is no indication to the user that this is happening.

     

    When a drive can no longer do this, it has become unreliable & should be replaced ASAP.

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