Mavericks corrupts external hard drive

My WD MyBook studio 2TB (fw800) suddenly shows up empty on my desktop after a Mavericks upfrade on my mid 2009 mbp.


Disk Drill is now scanning the WD, and the files are there, about 1,4 TB of it...


How do I get the disc structure back?


I have no Mountain Lion OS-mac to test the WD in..


I had a bootable Mountain Lion on the WD, could that be the problem?


In Disk Drill MyBook has four units; EFI(200Mb), MyBook(1,8Tb), Unallocated 128Mb and Lost partition (200Mb)

iOS 7, Ipad mini + ios7

Posted on Oct 24, 2013 1:08 AM

Reply
1,484 replies

Nov 12, 2013 9:54 AM in response to coffeebreath

coffeebreath

Nov 12 10:58:54 kernel[0]: hfs_swap_BTNode: record #-1 invalid offset (0x0000)

Nov 12 10:58:54 kernel[0]: hfs: node=13216 fileID=4 volume=Backup001 device=/dev/disk4

Nov 12 10:58:54 kernel[0]: hfs: Runtime corruption detected on Backup001, fsck will be forced on next mount.

Nov 12 16:54:03 kernel[0]: CoreStorageGroup::completeIORequest - error 0xe00002d9 detected for LVG "Backup001" (547C5767-6075-4522-8138-31976D157092), pv 4D075818-755A-4A17-A270-5A55B5D2E483, near LV byte offset = 2260238336.

Nov 12 16:54:03 kernel[0]: disk3: device/channel is not attached.

Nov 12 16:54:03 kernel[0]: CoreStorageGroup::completeIORequest - error 0xe00002e4 detected for LVG "Backup001" (547C5767-6075-4522-8138-31976D157092), pv 4D075818-755A-4A17-A270-5A55B5D2E483, near LV byte offset = 1727528960.






Yes , I see you're getting 029d drive eject errors then ... no media is present (0xe00002e4) errors



Are you running FireVault on said HD's. ?

Nov 12, 2013 10:07 AM in response to PlotinusVeritas

Thanks.


FileVault isn't enabled on this machine.


In the past 10mins, a Disk Repair run actually finished saying the drive could not be repaired; mounted the driveand changed the perms so the drive is read-only for everyone bar system / admin (IIRC).


I'm now updating the perms on the drive to enable RW, then I'll kick a TM backup off, if I get that far.


I miss the click-of-death days, it was easier to diagnose ;-)

Nov 12, 2013 10:31 AM in response to Trocafish

Same issue as the initiator of this thread and same question: how to -just- recover the disk structure - as no files have been deleted?


I have a MyBook Studio II with 2 x 1TB disks, setup as a factory default WD RAID 0 volume, ie a 2TB volume connected with FW800, originally formated with Disk Utility in 2011, but without any WD Drive or RAID Manager sw installed at the time. For no sensible reasons, I installed the WD sw at some point a year ago...


I am concerned by the fact that I ran two recovery utilities in demo mode (not until process is complete though), namely EasyRecovery Pro suggested by WD support and Data Rescue 3 as seen in this discussion. However, the results suggested by these two utilities are giving list of files with brand new names.

I would not care if I had not that many files, but this disk was used as a working disk for video editing with Final Cut Pro and iMovie. Those two video editing sw create specific file names and directory structures when importing video files. I am an amateur video editor but that represents thousands of files. Even if I can recover the video project files, those will be unworkable until after I repoint to the newly created file names.


I am actually not sure as to how to run these disk recovery utilities. In effect, they can detect a disk and a volume of 2TB. But what tells it's a RAID0? No files have been deleted as such, but instead the partition table got corrupted. So I cannot see the point to scan all the disk to try to recover files which haven't been deleted. Isn't there a tool that just simply recreate a partition table? Is it worth trying "repair disk" in MacOS Disk Utility? Or be patient and wait a fix from... Apple... WD...? Who among us will try it first? 🙂


(Blame me: I had no backup for this drive)


Message was edited by: Basilic

Nov 12, 2013 11:01 AM in response to E27

These links may help clarify this problem for some:


http://www.digitaltrends.com/computing/mavericks-deletes-external-hard-drive-dat a/


http://www.infoworld.com/t/storage/os-x-mavericks-upgrade-destroys-data-reports- western-digital-230100


http://blogs.computerworld.com/mac-os-x/23082/troubleshooting-external-drive-dat a-loss-os-x-mavericks


Using the new WD uninstall zip may not confirm if you did in fact have any installed WD software as it contradicted the VCD uninstall assessment and the actual situation. Further the zip will run again posting that you have uninstalled again - this repeats. As posted this zip added preventative auto WD uninstall code to the HD. No doubt a patch will come at some point - until then 10.8 has been recommended.

Nov 12, 2013 11:28 AM in response to Trocafish

Hi guys!


I´m running a iMac 8.1 (late 2008) on Snow Leopard and want to upgrade too Mavericks.


I have a "Carbon Copy Cloner" backup on a NAS (Synology DS213j, using Synology Hybrid RAID, running DSM4.3).


After reading this forum I´m afraid of upgrading to Mavericks.


  • Any experience with NAS-devices "loosing" data?
  • Suggestions on how to be extra safe?


// Regards

Nov 12, 2013 11:41 AM in response to NOSR

At the very least, I would suggest you uninstall any Western Digital software using their uninstaller and turn off your Synology when upgrading.


I would also suggest copying your Synology onto another disk if you can prior to upgrading.


But to be honest, I would try and wait before upgrading - Western Digital must sort this out soon.


http://community.wd.com/t5/External-Drives-for-Mac/External-Drives-for-Mac-Exper iencing-Data-Loss-with-Maverick-OS/td-p/613775

Nov 12, 2013 1:58 PM in response to Trocafish

I'm having a hard time following this thread; there's a lot of technical jargon that I don't understand.


I've been having problems with my 2011 macbook (video issues) for over a month, so I've been keeping all 400GB of hard drive data on a WD My-Passport for mac. It hasn't really been re-formatted or anything; I took it straight out of the box and connected it to time machine. Anyways, the laptop's about to go in for another video card replacement. I'm concerned, since I'm installing Mavericks once it gets back (running Snow Leopard right now), whether plugging my HD in will cause the data to be erased from it. Can anyone explain exactly why this happens (or not), perhaps without such big words? 🙂


Appreciate it.

Nov 12, 2013 2:23 PM in response to NOSR

NOSR wrote:

Suggestions on how to be extra safe?



You've been running Snow Lion for years and you feel the need to update the OS now? What's the rush?


Anyone is nuts to update their system until this thing gets sorted. And they will get it sorted. Wait for Apple to release an update to Mavericks, then watch how it performs and the make your decision.


And yeah, you should have, in the least, two backups (three is best) on hand before doing an OS update.

Nov 12, 2013 2:25 PM in response to Demara

You only have 400gig of external data


archive it online and on another HD. 1TB is only $70. Hard drives are cheap as dirt



Mavericks occurrence or not 2 copies of all vital data minimum is 'mandatory' other than any data ON the computer.



those who fail to have redundant data archives always end up regretting it. In this precautionary measure you are protected and no worries to upgrade to Mavericks as you so choose.


always have unattached 'frozen' data redundancies.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Mavericks corrupts external hard drive

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.