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All replies
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Helpful answers
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May 2, 2011 9:22 AM in response to RandyInBCby a brody,So in other words it fails to work when it isn't daisy chained?
Is it plugged in to an external (to the computer) power source when the issue is happening?
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May 2, 2011 9:53 AM in response to a brodyby RandyInBC,Hi Brody. The troubled drive has 2 volumes on it, 1 volume will mount and 1 will not. It has it's own power source that is working. The second drive I mentioned is my girlfriend's backup drive, I daisy chained it through mine which is plugged directly to the computer just to see if it would work and that the FW800 port was working ok, it appears to be. System Profiler see both volumes with full details (name, volume size, file system), the only difference here is 'Mount Point' is blank on the troubled volume. The drive is a 1T Western Digital 'My Book Studio For Mac" if this helps. Any other info needed ? please ask.
Thanks again
Randy
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May 2, 2011 12:26 PM in response to RandyInBCby old comm guy,★HelpfulOne thing you can try in Disk Utility is to select the physical device in the volumes window (not the actual volumes) and click Verify Disk to see if it verifies both volumes. You may have done that already, and if so, then "never mind" but let us know.
Another off the wall thing to try is to swap FW800 cables. While I can't see how a cable would prevent one volume from mounting, I have seen stranger things occur.
I didn't get a clear feeling that you were able to mount both volumes when daisy-chained through the other drive ("seemed to work" was kind of hedging).
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May 2, 2011 1:01 PM in response to old comm guyby RandyInBC,Hi OC Guy, I've tried in disk utility mounting both the drive and individual volumes but no luck. I've also tried swapping cables. There are no issues with the 2nd drive, both it's volumes mount fine, either daisy chained or plugged directly to the computer. My girl friend will be over Tuesday evening and I will try plugging my troubled drive into her computer and seeing what happens.
Thanks for helping out
Randy
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May 2, 2011 3:36 PM in response to RandyInBCby old comm guy,This is definitely a puzzle, as a volume (partition) showing in Disk Utility, though grayed out, should be able to be mounted. The "other computer" comparison is definitely a good troubleshooting strategy.
Just a quick thought: when you select the drive itself in Disk Utility, what partition map scheme is indicated in the information area at the bottom?
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May 2, 2011 6:35 PM in response to RandyInBCby Gardner Bradlee,RandyinBC, I am having the EXACT same problem with a Seagate external drive. I have a second drive I'm using for my backup but I can't daisy chain them. I've tried everything mentioned above and having the same issue you are. Hopefully there is a solution. i have a lot of photos I need to access and can;t.
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May 2, 2011 7:24 PM in response to RandyInBCby Gardner Bradlee,This is the info on my drive. I'm wondering if the "Owners enabled: No" has somethign to do with it. The drive partition that mounts has a "Yes" next to it.
Disk Identifier : disk1s2
Mount Point : Not mounted
File System : Mac OS Extended (Journaled)
Connection Bus : FireWire
Device Tree : /PCI0/RP04@1C,3/FRWR@0/node@20370002a12f88/sbp-2@c000/@0:2
Writable : Yes
Capacity : 100 GB (107,374,182,400 Bytes)
Owners Enabled : No
Can Turn Owners Off : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : No
Disk Number : 1
Partition Number : 2
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May 2, 2011 9:52 PM in response to old comm guyby RandyInBC,I got it FIXED YEAH !!!! Not sure what it was that caused it or how it happened but... I forgot about trying Disk Warrior on it, and it did the trick. I had it check the directories and 2 files/folder were critically damaged, Disk Warrior rebuilt them and now the volume is mounted.
Thanks for everyones help.
Randy
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May 2, 2011 11:08 PM in response to RandyInBCby old comm guy,RandyInBC wrote:
I got it FIXED YEAH !!!! Not sure what it was that caused it or how it happened but... I forgot about trying Disk Warrior on it, and it did the trick. I had it check the directories and 2 files/folder were critically damaged, Disk Warrior rebuilt them and now the volume is mounted.
Thanks for everyones help.
Randy
Hooray for Alsoft!
I wouldn't have thought of that since I thought you had gotten a clean bill of health from Disk Utility.
DW has come through for me in several nasty pinches over the years with flying colors. I now do a rebuild of my many volumes' directories (many ... long legacy story) when I do my five-week swap of the internal backup drive with the safe deposit box. It is time well spent, I think ... good insurance.