External drive now appears as "DriveName" (online) and "DriveName 1" (offline)

My photos are on an external drive "LaCie" in a folder hierarchy "LaCie/photos/yyyy/yyyy-mm-dd/". I imported photos from several memory cards, exited Lightroom 5 (allowing it to make its weekly catalog backup with optimization). I relaunched Lightroom and imported from a memory card. Then I noticed that there were two drives shown, "LaCie" (which is online) and "LaCie 1" (which is offline). LaCie has only the photos just imported (in LaCie/photos/2014/2014-05-02 - the only visible folder). All previous photos and folders are in "LaCie 1/" and all have a question mark. When I look at "LaCie/photos" in the Finder I see all the photos and folders where they should be. How do I get Lightroom to realize that drive "LaCie 1" is really drive "LaCie"? I'm using Lightroom 5.4 and MacOS 10.8.5 (Mountain Lion). Rebooting didn't help. Thanks.

Even though "LaCie 1" was offline, I did a Locate Missing Files operation and that corrected everything as far as I can tell. Very bizarre.

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I ereased my external drive now time machine doesn't back up. What should I do?

I ereased my external drive now time machine doesn't back up. What should I do? the reason I ereased was because backups wouldn't finsh because of disk error. I did disk repair. Still wouldn't back up so ereased the back up drive. Now nothing appears on it. On the internal drive of my imac in Appllications Timemachine is still there. When I click on it it goes to a screen that looks like a night sky and nothing more happens. Do I need to download some software?

Time Machine doesn't work on 10.4.7. It didn't become available until 10.5. Use a different backup software if you are going to use 10.4.7*:
http://www.macmaps.com/backup.html

My MacBook Pro hard drive is almost full and I wish to store my Aperture Library on an external drive, how do I do this and is the use of USB2 suitable or do I need to use a Firewire external hard drive?

My MacBook Pro hard drive is almost full and I wish to store my Aperture Library on an external drive, how do I do this and is the use of USB2 suitable or do I need to use a Firewire external hard drive?

You'll get better performance if you use a Firewire hard drive (especially if you buy a 7200 RPM drive). Firewire's IO speed is significantly faster than USB 2. USB 2 has a theoretical max speed of 480 Mbps except that it has extremely high over-head. The fastest speeds you can typically get are about 300 Mbps. Firewire, on the other hand, has very little overhead. The fastest speeds you can get are very nearly 800 Mbps. You will typically be constrained by the maximum read/write speed of the drive, not the speed of the I/O on the Firewire bus. Now if you had one of those nice shiny new Macs with the Thunderbolt I/O and a Thunderbolt drive (Light Peak) ... I think they alter space and time so that your data arrives before you know you want it.
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USB 2 will work perfectly fine... just not as fast.
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I want to format my external drive so that my new imac and my pc can read and write ,what should i do?

i want to format my external drive so that my new imac and my pc can read

Start by partitioning the drive as required for the Mac:
Drive Partition and Format
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
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WD My Passport 1TB USB external drive randomly ejects from my iMac and MacBook Pro. I have tried two separate USB cords. I have updated the firmware. I have tried it on my MacBook, two different Macbook Pro's, and my iMac. All give the

WD My Passport 1TB USB external drive randomly ejects from my iMac and MacBook Pro.
The drive is approximately 4 years old. When the drive is plugged in, I can see the data. It appears to be working properly. The only problem is that everyone of my Apple Machines are ejecting it. Several years ago, this drive connected to Mac machines with no problems. I have tried two separate USB cords. I have updated the firmware. I have tried it on my MacBook, two different Macbook Pro's, and my iMac.
All give the same result of random ejection of the drive and the error message of:
Disk Not Ejected Properly
Eject "1TB Passport HD" before disconnecting or turning......
Searching through the web, it seems this is an common/known problem. Does anyone know the solution?
Thanks,

Send Apple feedback. They won't answer, but at least will know there is a problem. If enough people send feedback, it may get the problem solved sooner.
Feedback

TS1338 I have 4 Trojan Horse viruses on my external drive I use for Time Machine. My MacBook Pro hard drive is clean. I have eased the external drive 3 times using Disk Utility and it still has the 4 Trojan Horse viruses. How do I get rid of them. Wayne

I have 4 Trojan Horse viruses on my external drive I use for Time Machine. My MacBook Pro hard drive is clean. I have eased the external drive 3 times using Disk Utility and it still has the 4 Trojan Horse viruses. How do I get rid of them. I am using 10.8.3 Wayne

ksu62 wrote:
The infection names are: classload.jar-719ef6a5.zip
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                                          classload.jar-lef99412-63bsd3fl.zip
Those look alot like file names and not infection names. I don't find any reference to anything like that on Norton or VirusTotal. Since you said these were Trojans, I would expect to see "Trojan" as part of the infection name.
".jar" files are executable Java applets. The random alpha-numerics would seem to indicate a cache file, likely from a browser with Java enabled. And we all know what ".zip" means.
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I have my Time Machine on an external drive (not connected to Airport Extreme) and I have an external HD attached to airport extreme. Is it possible to have Time Machine backUp computer HD AND external HD connected to Airport Extreme. How?

I have my Time Machine on an external drive (not connected to Airport Extreme) and I have an external HD attached to airport extreme. Is it possible to have Time Machine backUp computer HD AND external HD connected to Airport Extreme. How?

Is it possible to have Time Machine backUp computer HD AND external HD connected to Airport Extreme.
Sorry, but no.
Time Machine will backup your Mac, but not the hard drive attached to the AirPort Extreme.
Time Machine will back up a hard drive only if it is attached directly to your Mac via USB or FireWire.

I placed my aperture library on a 1 TB external drive (the file is 300 GB) and Aperture churns and churns but will not open the file. I don't know if the file is too large or if it is the external drive or what? any ideas? Smaller files will open.

I placed my aperture library on a 1 TB external drive (the file is 300 GB) and Aperture churns and churns but will not open the file. I don't know if the file is too large or if it is the external drive or what? any ideas? Smaller files will open. This is very annoying.

If this is an external USB drive, you must understand that USB is really, really slow. There may be nothing wrong except for that.
In my opinion, USB external drives are only acceptable for backups, and to get "near Hard Drive" performance, you need FireWire.

New user...how do you drag or move or copy a file or folder from the desktop to an external drive? I have tried dragging and copy/pasting.

new user...how do you drag or move or copy a file or folder from the desktop to an external drive? I have tried dragging and copy/pasting.

My guess the problem you are running into is the drive is formatted for a PC as NTFS. OS X can read files from NTFS however it cannot write to it. Check the formatting on the drive, if it's NTFS then it should be reformatted to Mac OS Extended (Journaled), you can use Disk Utility to do this.
If you still have a PC and want to share the EHD with the PC and Mac please read MacWorld's Share an external drive between a Mac and a PC article.

Best way to move files to external drive in LR 5. Drag and drop or export, if drag and drop

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Drag and drop should do the job. Or move the files (or folders) in your operating system and then re-link via http://www.computer-darkroom.com/lr2_find_folder/find-folder.htm
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Export most definitely isn't the solution.

HT1449 Ok. I have an '06 Macbook Pro still running on Snow Leopard 10.6.8, and iTunes 10.6.1. I did everything in this article leading up to step 14. I thought I trashed the right file, now I can't access my music which is on my external drive now. Help!

As stated in my above Subject field. I have an older Macbook Pro and I was attempting to move my iTunes media file using this article:
http://support.apple.com/kb/ht1449
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What am I doing wrong here?

I had the same problem and found the answer!
In Outlook, go to the Help menu, then Check for Updates.
I downloaded & updated Outlook, then it upgraded my database, and everything worked out fine for me!
Good luck!

Moved iTunes Library to external drive- now can't move iPad purchase to Mac

I moved my iTunes Library to an external drive because I didn't have enough internal HD space to move a movie purchased on the iPad to my Mac. Now iTunes won't sync my iPad - and wants to reformat it - because it says it was formatted on another Mac.
I've tried Aiseesoft iPad Manager but the movie - a iTunes+ movie, so I assume it is a package of some sort - doesn't show up in the movie pane.
This is a really crappy position to be put into. If I could re-download the movie I'd just reformat my iPad and be down with it. Unfortunately, this is not an option.
Help!

As a best practice, you should move your content to an external drive and import references to into iTunes rather than moving the whole database and app files. In iTunes > Preferences > Advanced, uncheck "Copy files to iTunes Media folder when adding to library". This will keep all your music and movies on the external drive, but iTunes and all references to the content on your desktop.
I know that's not what you wanted to hear as a fix, but this is how I have my MacBook Air setup and it works fine with the iPad. My son tried to move the whole app and database to a hard drive and we had endless problems with it.

Bought MacAir 2 weeks ago. Loaded Parallels; Windows 7 Pro; Office 10. Created a ss but defaults to Office 11 making it impossible to save on an external drive, but worst is my external drive now asks to be formatted (losing all my personal files)

As stated above. So despite attempting to run a parallel windows system it seems like everything's defaulted to Apple. I've tried uninstalling Office 2011 (trash), but then I can't use save an Office 2010 file without it. So, I have to reverse that. Not sure whether I should uninstall the whole lot and try again.
But I have an even worse problem: My external hard drive (Samsung) will not now work and it contains all my personal and work files, but more importantly all my tax files that I need as a Brit expat. It now asks me to format the drive on the Mac or my work PC. Presumably this will mean I lose all my data.
I'm totally underwhelmed and now wished I had never bought the computer because it will cause me huge problems if I have lost my data.

Step 6: Here is where I need help/advice – can I remove the Bootcamp partition on my internal drive now?
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Used the Bootcamp Assistant to remove the bootcamp partition on my internal drive.
Booted the system with the option (alt) key pressed down and now there was NO Windows drive to choose.
Therefore I used the Bootcamp Assistant to install Windows back onto my internal drive (including installing Bootcamp drivers in the Windows environment). This time I chose the minimum partition of 20GB for the Windows installation on the internal drive.
Booted into the new Windows on the internal drive and installed the drivers for my Thunderbolt drive.
Restarted with the option (alt) key pressed down, chose the Windows drive, but Windows Boot Manager still didn't pop up to allow me to choose the Windows installation on the external Thunderbolt drive.
Booted from the Windows DVD and chose Repair.
Restarted with the option (alt) key pressed down, chose the Windows drive, and now Windows Boot Manager finally popped up, which allowed me to choose the Windows installation on the external Thunderbolt drive again, phew!
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Is it common to keep a music library on an external drive now?

I did this about five years ago, when it was relatively new, and stopped because it was sometimes wonky. Given the popularity of the MacBook Air I'm thinking that perhaps the wrinkles might be ironed out? I have a very large music library (200 gig) and would love to move it to our Time Capsule. Does this make sense with a fleet of devices (iPad, iPod Touch, iPod Classic, Nano) and one main computer (MBP) on a very fast WiFi LAN? One more snowflake detail: Our Time Capsule began exhibiting to exhibit the odd "connection has been interrupted" error when I tried my Calibre Library on it. If you recommend going forward I'll just switch back if this becomes an issue. I mention it in case someone reading this knows of a workaround.
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Brilliant; thank you! I hadn't heard about locking in the IP but it makes perfect sense. Should be easy to do in Airport Utility, too.
Only the first part of my question remains. Does keeping a music library on an external drive work well now? Are there any pitfalls to avoid? Should I consider breaking up my collection into two libraries: one for audiobooks and the other for music?

HT1386 i want to sync from my ipod to a new library but ipod recognises that content is already held in another library (on an external drive, now broken which i cannot access). Help?

help needed please. I haven't used my ipod for some time - my library content is stored on an external hard drive, which i also haven't used for some time. now that i have an ipad i wanted to sync everything but the external drive is broken. i have uploaded and updated all software for ipod/itunes onto my laptop but the programme is recognising that i have a library elsewhere and will only allow me to update from laptop to ipod (which would delete all my music). Can anyone suggest a way around this? many thanks!

Syncing to a "New" Computer or replacing a "crashed" Hard Drive: Apple Support Communities
Recovering your iTunes library from your iPod or iOS device: Apple Support Communities

External drive now appears as "DriveName" (online) and "DriveName 1" (offline)

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