Hardware :: Drive Recognized When Connected Via USB But Not When Connected Via FireWire?
Jan 28, 2009
I consider myself very good at all things Mac. But this one has me stumped.
I've just arrived home with a WD My Book Home Edition 1TB external drive. Formatted for Windows it mounted correctly via FireWire and USB.
First things first: I formatted it for the Mac... Mac OS Extended (Journaled), two GUID partition tables. So far so good. Each partition is recognized, each mounts like it should.
Time Machine then backed up my Intel iMac... again, everything's normal. No odd or unusual behavior.
Here's where things get strange.
For whatever reason I formatted the drive via USB. But my intention hereafter is to connect via FireWire... I need each USB port for peripherals.
But the drive isn't recognized through FireWire. I'm asked if I want to initialize it. When reconnected through USB the drive mounts again.
What's going on? Why is the drive recognized when connected via USB but not when connected via FireWire?
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Nov 4, 2010
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Mar 8, 2009
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Apr 14, 2004
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Aug 14, 2009
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Feb 21, 2009
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Oct 5, 2010
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Oct 9, 2010
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Nov 9, 2010
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Mar 30, 2008
I have installed my new eSATA Newertech cable in my Mac Pro. I want to install windows XP on this external drive, because I have the Apple RAID Card.
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Feb 3, 2009
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Oct 13, 2009
A while back I switched a external drive from being plugged directly into the USB port of my mac to being plugged into the USB port of a Time Capsule, now accessed via wireless network. When the disk was plugged directly to computer Spotlight would find files with the search string contained within the body of the document. Now it doesn't do this (it will only find file names). Is this standard behavior of disks connected to a Time Capsule or am I missing something?
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Aug 18, 2010
I am in need of assistance with backing up my macbook pro using time machine. I am running Mac OS X leopard 10.5.8. I have attempted to backup to a network share folder on a Windows machine, but the backup abruptly ends. So, I decided to attach an NTFS external drive, connected via usb. The external drive was formatted on a Windows 7 machine (not quick format); so, it currently has no space occupied. I installed MacFuse and NTFS-3G. Then, I rebooted and attached the NTFS external drive. I set the preferences in time machine to backup to the aforementioned drive. However, Console is reporting that the backup failed with error 19, and time machine is reporting that the storage location for backups cannot be found, when i command time machine to backup now.
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Feb 5, 2012
I have a Drobo external drive array connected by firewire to my primary home computer - a Mac Pro. the last year I've backed up two Macbook Pros (mine and my wife's) to this Drobo using Time Machine (The Mac Pro is always on and the laptops backup through the home network, through the Map Pro, to the Drobo). I recently did a fresh reinstall of Lion to all 3 computers. Now for some reason Time Machine can't kick the backup off. It gives me a "Can't backup - the backup drive us not available," or something like that.
A couple of key points:
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* If I create a test admin account to try, I get the same problem when trying to back up.
* As a safegard, I have run a manual backup successfully to a separate external drive (mobile g-drive)
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Jun 24, 2012
I have a Mid 2009 21inch IMac connected to the external hard drive. I just bought macbook air which i use to connect to my iMac at home via icloud. My problem is that i cannot find the external hard drive which is connected to the iMac. I tried to assign the external storage as shared folder. That didnt work. I tried to make alias and drop it in the public folder. it does not work either.
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iMac, Mac OS X (10.7.4)
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Sep 4, 2014
I have a SATA hard drive that works perfectly when connected through an external USB enclosure but whenever it's plugged into the internal SATA connector on my MacBook Pro I receive the error message "The operation can’t be completed because an unexpected error occurred (error code -50)." any time I attempt to move or copy a file to it.Â
This doesn't happen with any other hard drive I connect internally, so I don't believe it's an issue with the internal cable. Â
I have made sure all permissions are set to allow reading and writing to the drive as well as selecting the "Ignore ownership on this volume" option in the Get Info panel.
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MacBook Pro, OS X Mavericks (10.9.4)
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May 26, 2012
With TimeMachine, I backup two external drives (let's call them drive A and B). Recently, drive B broke and I restored the data on a replacement drive and gave the volume the same name as the broken one had. I made TimeMachine aware of the fact that this new drive corresponds to the old one by using the "tmutil -a associatedisk" command as described here: [URL]When TimeMachine started the next backup, it did not perform all full backup of the new drive, though still way more than it should. So far so god.Â
The problem is: if TimeMachine performs a backup while the new drive (the replacement of drive B) is not connected, it does not create the hard links for it. Drive A is not connected either, though hard links for it show up in the Backups.backupdb folder for this backup. If the replacement drive is connected the next time, TimeMachine will perform a full backup of it ... most likely because the previous backup does not contain any hard links.Â
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MacBook Pro, Mac OS X (10.7.4)
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Nov 4, 2010
Basically what I wanna know is: Can I configure time machine to back up to a hard disk that is connected to my router? I guess essentially I'm trying to make a homemade time capsule. Is this possible and if so, how?
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Mar 11, 2009
I have an airport extreme with a 1tb drive connected to it that my entire family connects to (4 people).
I installed the latest AirPort driver that allows the hard drive to be accessed over the internet which works great.
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Jul 21, 2010
I'm trying to backup the contents of my MacBook Pro wirelessly to an external hard drive that is connected to a Mac Mini in my living room. All the tutorials I've read say to create a sparsebundle file with the same name as the one that's found in the folder of your Time Machine backup.
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