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#1
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Unable to unmount primary OS drive when booted to external firewire drive backup.
As the title says, I've backed up my main MBP hard drive using the "Backup - All Files" script to an external Firewire drive partition. I can boot to the backup drive without a problem but I can't unmount the primary drive. When I try I get the message 'The disk "Macintosh HD" could not be unmounted. Make sure that all applications and files are closed on this disk.'
I've tried searching the forum and the only similar problem I could find was here:- http://www.shirt-pocket.com/forums/s...unt+hard+drive Someone who was backing up to an image (which I'm not doing) and was told to rename the image backup to the same as the primary drive. That's not an easy option for me, without re-formating my backup drive partition. Any ideas what is causing this and how I can fix to unmount my main drive? |
#2
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Yes. Rename the backup drive to "Macintosh HD" and then start up from it.
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--Dave Nanian |
#3
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By "Macintosh HD" do you mean whatever my primary drive is called ("HAL") ?
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#4
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Well, you had indicated above it was called "Macintosh HD". Is that not the case? You don't have to reformat, you simply have to rename.
__________________
--Dave Nanian |
#5
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Quote:
In any case. I've renamed the backup drive to the same as that of my primary drive and when I boot to the backup I still get the same error. |
#6
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I don't know why that'd be; something -- perhaps Spotlight? -- must have files open on that drive...
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--Dave Nanian |
#7
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I don't have anything open - It's a fresh boot-up.
I have set spotlight to *NOT* check either of my external Firewire partitions but I can't seem to find where to disable it for the primary drive. |
#8
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Understood, but something has a file open there. Since the volumes are named the same, assuming that's what you've done, it must be something that's actively looking for drives to make "active"... have you tried adding the volume to the Spotlight Preference Pane's "Privacy" tab?
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--Dave Nanian |
#9
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Ok, while booted into my backup drive I tried adding my primary drive to the privacy list in Spotlight but it wouldn't accept it. I booted back to my primary drive, added the primary drive to the privacy list in spotlight and it did accept it. I then booted back to my backup drive, checked that my primary drive was still listed in Spotlight>Privacy, which it was, and now Disk Utility lets me unmount the primary drive.
I just need to remember to remove my main drive from the spotlight privacy list. It might be worth adding something to your FAQ perhaps? As an aside though, I'm concerned about the scenario where the main drive is unbootable and I'm unable to perform the actions above in order to unmount the main disk. |
#10
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It's not something that happens much, actually. I don't know why Spotlight was being so active for you, but certainly booting in "Safe Boot" will prevent Spotlight from running, which would allow you to unmount...
__________________
--Dave Nanian |
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