Transferred external hardrive - is it sfae to use for time machine?

My previous PC crashed but i managed to save the hard drive and have copied it to an external hard rive. i have now pulled all this on to my new mac. Has anyone had any problems with using stuff on it, i now have office for mac do that sorts out all my office stuff. I want to now use the external hard rive as my time machine back up but am a little nervous of formatting it. Any advice would be appreciated.
Thanks
Phil

See #5 in [Time Machine - Frequently Asked Questions|http://web.me.com/pondini/Time_Machine/FAQ.html] (or use the link in *User Tips* at the top of the +Time Machine+ forum).

Similar Messages

Using External HD connected to Airport to use for Time Machine - Problems

Hello,
I have an Airport Extreme (1 USB port on back) and want to use an external HD as the Time Machine. Originally I had the HD connected to the Airport and just using as storage. We have 2 Macbook Pros and both could see this HD when used this way.
I have since decided to use the HD as a dedicated Time Machine storage device (my MacBook crashed). I was instructed to reformat HD (which I did) and plug into each laptop to initialize the Time Machine (which I did). Both laptops saw the HD and did a backup.
Unfortunately when I went and plugged the HD back into the Airport it was not reconized by either laptop and I could not initialize Time Machine (TM did not "see" the HD as the storage device.
I can still plug the HD into each laptop and it will do a backup but would like to get this conected so it is automatic.
Both laptops have Snow Leopard installed
Any thoughts or suggestions?
Thx
Jim

Sorry, the older "round" (looks like a flying saucer) AirPort Extreme cannot support a hard drive. It will only support a compatible printer at the USB port.
You need the "square" AirPort Extreme to be able to connect a hard drive at the USB port. It looks like this AirPort Extreme. Or, do you mean to say that you have this model?
Message was edited by: Bob Timmons

Can external drive connected to TC be used for Time Machine?

My 1 TB TC is running out of space and I can't afford the 2TB version. It's much cheaper to buy a 2 TB drive and plug it into the USB port on the TC, but before I do so, can someone savvy tell me if I will be able to select the drive connected to the TC as a Time Machine backup drive?

disconnekt wrote:
Thank you for this answer, and for that very helpful link. I can see that the Archive feature will not be practical for everyday backups,
Right.
so I'll have to find another solution...
See Kappy's post on Basic Backup, complete with links to the web sites of each product. You might also want to investigate Chrnosync: I've seen some posts that it can back up a network drive, but don't know if that's true.
Basically, if you run out of space on the TC's internal drive and decide to repurpose it for storing data, you have to be OK with not having that data backed up. I don't get this decision on the part of Apple—maybe they want me to shell out $400+ for a new 2TB TC?
Doubtful. Backing-up network drives, especially to another network drive, would be even slower and less reliable, and not something most Mac users would want to do. And even if you got a 2 TB, Time Machine still couldn't back up a network drive.
And they won't let you use a hard drive connected to Airport Extreme for TM backups either, which I'm guessing is another ploy to pry more dollars from our hands.
Now, don't be paranoid! They don't prevent it, but they don't support it, either. Some of us do it anyway, but it's generally not especially reliable, so we make sure to always have secondary backups. Nobody here can say why they don't support it, but unreliability sounds like a pretty good reason.

Unable to install Lion. Installer says disk is used for Time Machine backups. But it's my Mac's HD.

On attempt to install Lion from CD, the installer says: "Mac OSX cannot be installed on "Macintosh HD". This disk is used for Time Machine backups."
I have an external drive that I've been using for Time Machine backups, but it stopped functioning recently and I have not replaced it.
Is there a workaround?
Thx in advance. Bryant

Maybe this http://support.apple.com/kb/TS2986 can help you.
Stefan

I am trying to install Mavericks on my McbookAir, but it won't install, saying that my hd is used for time machine backups. I have an external HD connected to my mbAir that I'm using for time machine.

2012 Macbk air, with OSX 10.8.5. See my question above. Mavericks won't install on my Air's HD, says that both the HD - AND - the external HD (which has a different name from the laptop HD) are used for time machine backups. I've deleted my time machine plists, restarted, repaired permissions, turned time machine off, repeatedly selected the external drive in time machine preferences. HELP. (Install went perfectly on my desktop Mac, which also has an external HD for time machine).

I need to add that the only place I have the "Backups.backupdb" folder is on my backup external disk, and it's not on my HD :-( . If it were, I'd delete it!

External hard drive used for Time machine is full and having a hard time backing up. what should I do?

External hard drive used for Time Machine is full and having a hrad time backing up. What is my best option moving forward? NAS?

For All things Time Machine see Pondini's Excellent Infirmation here...
http://pondini.org/OSX/Home.html
Start with FAQs and Troubleshooting.

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago.`

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I tried unplugging the cord that connects the HD to the iMac and plugging it back in, but I still get "The disk you inserted was not readable by this computer" below which are buttons for Initialize, Ignore and Eject. I was using a cord that went from larger square plug to larger square plug. So then I tried one that went from smaller square plug to what I think is USB (thin rectangular plug) of the sort that connects the keyboard and mouse. It's the type that my printers and scanners use to connect to the iMac. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago. What else can I try before just trying to initialize and

Thanks, Michael! I do hear it at times spooling up and running. Just after I bumped the thread I looked for troubleshooting for this drive online and found the manual which suggested using Disk Utility which I've seen before accidentally (if I hit Command Shift U instead of Shift U to type "Unit" on a new folder for a student's homework ) but had never really noticed. Disk Utility does see it and also a sub-something (directory?) which might be the Time Machine archives on the disk, called disk1s2), sort of the way that my iMac's hard drive shows up as 640.14 GB Nitachi HDT7... and has a sub-something titled DB iMac, which is what I named my iMac's hard drive.
Anyway the owner's manual just shows the image under the formatting section, not the troubleshooting section, but as soon as I saw it in the manual I remembered seeing it accidentally a few times, went to it, and am now verifying the disk. Right now it's telling me that it will take 2 hours to complete the verification, so I guess I have a bigt of a wait. :-)
Does that fact that Disk Utilities can see it mean it's not failed, or just that it hasn't completely failed?
I can see the virtue in having multiple redundant backups, or at least two backups. What do you suggest? Two external hard drives? I had this one linked by ethernet, and but I also have a cord that could link it by USB (like a printer), so if this one is reparable I could get a second one and link it by USB. If this one is not reparable I could get two and do the same thing. I do have an Airport so I suppose it's possible to get some sort of Wi-Fi hard drive (my new printer/scanner uses only the network and not a cable, although it has a cable that I used for the initial installation), but I'd suspect a Wi-Fi hard drive might have a higher price.
What hard drives, if any, do you recommend? I seem to recall that when I was looking at external hard drives 4 years ago, Apple's were substantially more expensive, which is why I got the OWC Mercury Elite All Pro.

Can you unplug the external hard drive you are using for time machine

can you unplug the external hard drive you are using for time machine and then plug it back in and it work normals because i have a mac book and don't want to always be carrieing the external hard drive every where i go so can you ?

Yes, that will work fine. It will back up normally once you plug it in again. I do this with my MacBook.

HT4848 Is it possible to partition an external hard drive that is already being used for Time Machine backups without it being erased?

I'm want to use my current external hard drive, which I use for Time Machine Backup, as a recovery disk for Mac OS X Mountain Lion 10.8.2. From what I have read, the recovery disk assistant will erase all data on the external drive unless it is partitioned. Can I partition my current backup drive without erasing it, even though it is already being used for Time Machine?

It's very simple to test. Turn off your computer. Have your time machine backup plugged in. Hold option and turn it on, keeping option held. Do you see your time machine drive? If so, select it and press enter. You'll end up in recovery. If it works, there you go. Then just click the apple and restart to get back to your regular desktop. Then you'll know for when you're ready to do the deed.
Edit...
I'm not sure if time machine will think it's an entirely different computer, though, when a hard drive changed, making an actual restore not doable. Either way, you could still reinstall mt lion fresh and then just migrate after, skipping the need for SL.

Cleaning virus-infected files on external hard drive used for Time Machine

I am kinda reposting this with some extra explanation since I didn't really get any good respnses on my first post:
I am running McAfee VirusScan and it locates and cleans virus infected files just fine on my computer, but when it finds infected files on the external hard drive I use for Time Machine backups, it says "Repair Failed". Is there a way to clean infected files on my Time Machine backup drive?
I had found a virus in several documents on my Mac, which I cleaned, but it seemed to infect a bunch of the files located in Time Machine as well. I know these files shouldn't harm my Mac, but I still don't like having virus infected files. They seem to propagate and I don't want to give them to any of my Windows-using friends.

Hi,
Usually (but not always), virus-infected files aren't system-related, so if they cannot be repaired, there should be an option in VirusScan to delete them or quarantine them instead of repairing them. Assuming that you are archiving Mac-related files and not archives of Windows files, then it should certainly be safe to just have VirusScan delete or quarantine them. An alternative is that you could delete them manually. But before you do any of this, be sure to take a look at the filename and its location in the folder hierarchy to make sure that you aren't removing a file that's critical to the operation of some piece of software.
Hope this helps,
Ken

How do I part ion an external hard drive used for time machine?

I have a Seagate 1.5 T external harddrive I'm using for Time Machine. I would like to partition it so I can store other files and photos on it. How do I do it??
Thanks,
JD

In Disk Utility
http://docs.info.apple.com/article.html?path=Mac/10.7/en/mchlp1725.html
Message was edited by: b j t

HT3764 How to reformat an external hard drive using Snow Lepard to use for Time Machine

How to reformat an external hard drive using Snow Lepard to use for Time Machine

Use the Disk Utility in the /Applications/Utilities/ folder to erase it as Mac OS Extended (Journaled) with GUID as the partition map format(or APM if you're using a PowerPC Mac running 10.5).
(73291)

Are all external FW drives used for Time Machine more prone to fail?

Within a period of just several months, I've seen three different external FW drives used for time Machine in three different locations fail terminally. They were different brands (Seagate, OWC and a nondescript generic from Fry's).
Is there something intrinsically different about how Time Machines disks function compared to plain data storage drives? Or was do these three drives amount to just a coincidence?
Thanks in advance.

Bus-powered seem not as robust as self-powered.
Soemtimes cables are flaky.
How did you decide these drives are "terminal?"

How to install Snow Leopard on Macbook Pro? keep getting msg- cannot install Internal HD is used for Time Machine- this was reset to external HD and still get msg?

How to install Snow Leopard on Macbook Pro? keep getting msg- cannot install Internal HD is used for Time Machine- this was reset to external HD and still get msg?

At some point, your internal HD was selected for use as Time Machine backups, and a Backups.backupdb folder was created at the top level. So OSX thinks you're trying to install it on the same drive as your backups.
Open your internal HD with the Finder (you won't find it via a Spotlight or Finder search) and delete that folder.

External usb disc used for Time Machine backup disconnects when Mac has been into sleep mode

I use a 1Tb External usb disc used for Time Machine backup which works fine, but when the Mac goes into sleep mode & powers back on I get a message stating that you should always eject the Drive before removing.
Any suggestions on how to get around this problem would be welcome

Look at the root of your hard drive for a folder called Backups.backupdb.
Or, a sparse bundle disk image for one of mobile computers that might have tried to back up to your Mac.
If you have those, remove them and try again.

Transferred external hardrive - is it sfae to use for time machine?

Similar Messages

Maybe you are looking for