1 2 3 Previous Next 67 Replies Latest reply: Aug 10, 2012 2:52 PM by Joohateme
jackiefrombrooklyn Level 1 Level 1 (0 points)

Hey, I just updated my MacBook Pro 13" to OS X Lion today, and now my WD Elements External Hard Drive will not be read by my Mac at all anymore. Is there gonna be a software update on my hard drive's end that will become compatible with Lion eventually, or am I screwed? Has this happened to anyone also, or do I need to go with another hard drive manufacturer....help plz!!!!


MacBook Pro, Mac OS X (10.7)
  • 1. Re: my hard drive won't be recognized after os x lion update!!!
    scottiemn Level 1 Level 1 (0 points)

    The same thing happened to me. My external hard drive (on which is my Snow Leopard Time Machine backup) will not mount. Anyone have a fix?

  • 2. Re: my hard drive won't be recognized after os x lion update!!!
    The hatter Level 9 Level 9 (58,880 points)

    Seems like I read a lot of stories like yours when Snow Leopard came out. That said, OWC has tested all of their external drive cases and found no problems with Lion.

  • 3. Re: my hard drive won't be recognized after os x lion update!!!
    SteveieB Level 1 Level 1 (0 points)

    Same problem with me as well, surely Apple with a fix for this soon I hope?

  • 4. Re: my hard drive won't be recognized after os x lion update!!!
    LeeFoster Level 1 Level 1 (5 points)

    The WD My Book Studio that Apple recommended to me only a few weeks ago is no longer able to mount and contains everything I need for work. As usual apple is keeping quiet, no solutions, appologies or help.

     

    Cheers Apple.

  • 5. Re: my hard drive won't be recognized after os x lion update!!!
    anne mus Level 1 Level 1 (0 points)

    Same problem with me as well, lacie 1TD not recognised , but my other hd ( verbatim) works.... solution , please.....

  • 6. Re: my hard drive won't be recognized after os x lion update!!!
    gufetto Level 1 Level 1 (0 points)

    The same for me with a WD My Book Studio Edition 1TB. The disk mounts and unmounts non stop. Firewire or UBS is the same. Also with a new firmware of the disk and after a formatting. My hardware is an iMac early 2009 24".

     

    What's happen with Lion, Apple?

  • 7. Re: my hard drive won't be recognized after os x lion update!!!
    tamsinmae Level 1 Level 1 (0 points)

    Mine too! WD 10000EB035-01 1TB WILL NOT MOUNT... since I've installed Lion, my l Lacie 2TB and Startech 3TB are both fine. Need the WD as it has my MACBOOK PRO Hard Drive backed up there. Apple please update ASAP!!!

  • 8. Re: my hard drive won't be recognized after os x lion update!!!
    William Kucharski Level 6 Level 6 (14,695 points)

    Why not ask WD or LaCie?

     

    Does Disk Utility see the drive(s)?

  • 9. Re: my hard drive won't be recognized after os x lion update!!!
    gufetto Level 1 Level 1 (0 points)

    William Kucharski wrote:

     

    Why not ask WD or LaCie?

     

    Does Disk Utility see the drive(s)?

     

    The problem is unequivocally generated by Lion. The reason should be asked to Apple, at first.

    With the others OS pre Lion everything is good. We are talking about "standard" hard drive. There is something wrong in Lion.

     

    Utility Disk see the drive but not repair it.

  • 10. Re: my hard drive won't be recognized after os x lion update!!!
    Deuxtan Level 1 Level 1 (0 points)

    I own two of the Western Digital 2TB Elements (WDBAAU0020HBK) and have the same problem. The hard drives show up in Disk Utility, but that doesn't matter if they can't be accessed through Finder.

     

    After unsuccessfully trying to scan and repair them I have been searching through the Western Digital Forums and it seems like Western Digital is well aware of the problem and currently working to fix the incompatibilities with Lion and their products. Since the operating system was recently released it is not officially supported just yet. We will need to wait until they release a compatibility patch. (Source)

     

    I'm a little taken aback, that this is a known issue that hasn't been fixed before the release of Lion. Especially since it wasn't the first time Western Digital has experienced problems with a new Mac OS.

     

    The source of the trouble is unknown to me but, it is known that apparently Apple has changed the AFP (Apple File Protocol), because they deemed it "not secure enough". (Source) This only concerns the NAS (Network Attached Storage) products of course, though there's most likely more changes to the file handling where that came from. So it's possibly up to Apple to come up with a solution.

     

    Anyway, that's all I could find about this issue for now.

  • 11. Re: my hard drive won't be recognized after os x lion update!!!
    William Kucharski Level 6 Level 6 (14,695 points)

    Changes in AFP wouldn't result in Disk Utlity not being able to see the device; if that's the case it's obviously an issue where the USB firmware in the WD enclosures isn't properly following the protocol.  However, if Disk Utility can see it but not mount it, it still points to a USB issue as the drive doesn't care whether a Mac OS, NTFS, FAT or UNIX file system is on it, it knows not about file systems, just data transfers.

     

    If it was a pure Lion bug it would be seen across more enclosures, but at present it seems to be mostly WD with a few LaCie drives in the mix as well.

  • 12. Re: my hard drive won't be recognized after os x lion update!!!
    William Kucharski Level 6 Level 6 (14,695 points)

    gufetto wrote:

    With the others OS pre Lion everything is good. We are talking about "standard" hard drive. There is something wrong in Lion.

     

    I've had to pull out this example before:

     

    Say there's a firmware bug on the device where it calculates "3 + 2" as "5" but "2 + 3" as "6."

     

    If every other device on the planet adds "3 + 2" but Lion adds "2 + 3," it's not Apple's responsibility to change their code to add "3 + 2" nor should they.

     

    Issues with firmware with external enclosures have cropped up before with previous versions of Mac OS X, and in each case it was the enclosure and/or bridge chip vendor that had to produce a fix.

     

    Ironically (or perhaps not) WD in particular has needed to develop fixes on multiple occasions when a new release of Mac OS X had problems talking to their drives.  (Note WD, not Apple.)

  • 13. Re: my hard drive won't be recognized after os x lion update!!!
    gufetto Level 1 Level 1 (0 points)

    William Kucharski wrote:

     

    gufetto wrote:

    With the others OS pre Lion everything is good. We are talking about "standard" hard drive. There is something wrong in Lion.

     

    I've had to pull out this example before:

     

    Say there's a firmware bug on the device where it calculates "3 + 2" as "5" but "2 + 3" as "6."

     

    If every other device on the planet adds "3 + 2" but Lion adds "2 + 3," it's not Apple's responsibility to change their code to add "3 + 2" nor should they.

     

    Issues with firmware with external enclosures have cropped up before with previous versions of Mac OS X, and in each case it was the enclosure and/or bridge chip vendor that had to produce a fix.

     

    Ironically (or perhaps not) WD in particular has needed to develop fixes on multiple occasions when a new release of Mac OS X had problems talking to their drives.  (Note WD, not Apple.)

     

    Compatibility must remain if we are speaking of a modern OS. The disk is 2 years old. The drivers (USB and firewire) are substantially apple. I not talking about AFP or SMB or somothing else. A normal connection with cable: hard drive to Mac. My WD HD works with every OS. Only Lion fails. Too easy invoking a vendor fix. There is something wrong in this hasty new OS.

     

    Finally I don't remember those multiple occasions in which WD has developed fixes about this kind of HD.

  • 14. Re: my hard drive won't be recognized after os x lion update!!!
    William Kucharski Level 6 Level 6 (14,695 points)

    If it were the OS the same issue would affect every vendor's hard drive and there would be hundreds of posts about how users' Seagate, LaCie, Granite Digital and other enclosures had gone missing; instead there have been complaints about one particular LaCie enclosure and WD enclosures.

     

    Re-read my example to see why this may be and why Apple would not be at fault if that's what's happening.

     

    A nasty issue happened back in Mac OS X 10.3 Panther where a bug in the firmware of external enclosures used for several third party external drives caused data loss. Apple made some changes to minimize the odds of this occurring, but the issue still could occur unless the firmware in the enclosures was patched.

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