HT203177 Time machine doesn't recognize my hard drive archive

I have time machine archive on a hard drive (not time capsule). It recently stopped backing up. On checking, time machine recognizes the hard drive (in preferences it is listed as the back up drive.) The files appear to be present on looking into the drive, but Time Machine doesn't recognize that there are backup files there, it wants to complete another full backup. Meaning - it says for latest backup: "none".
I am afraid if I do another full backup, I will lose the ability to access the older backups.
When I try to access older files through time machine, it predictably cannot find them.
How do I tell Time Machine that the files on that hard drive are the backup files?

Update:
1) Right click on TM icon - Menu choice "Browse other TM disks" allows me to see the data - i.e. it is a valid TM archive, not corrupted.
2) Looking at TM preferences immediately after showed the proper disk was targeted, but still Latest backup: None.
3) Shut down, anomalous shut down -required power button hit. (AHH - the problem??)
4) restart using command - R works - i.e recognizes the disk and emergency recovery system software
5) Restart - Still shows latest backup: None
6) trying to access data through standard TM startup shows data now.
7) go back to preferences - still no backup shown.
Aside - I can't recall what the purple vs white dates on right side of the screen signify, and can't find it in the documentation right now. Anybody know?

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Time machine doesn't recognize external hard drive

Recently I went to the apple store to get help to switch from Mavericks to Mountain Lion (I had some problems with Mavericks). They used time machine to bring back my applications (from my external hard drive, LaCie) on the Mountain Liion software. They said my time machine/external hard drive should work the same when I got home. Now, when I go to back up my computer, time machine doesn't recognize that I've backed up my files before. In the past, when time machine was working, every time I plugged in my hard drive the icon for it would turn blue, time machine recognized it, and it would back up my files. Now, the icon for the hard drive shows up, but time machine doesn't recognize it.
Some other things:
- when I open my external hard drive on finder, it shows all of my previous back ups
- I used disk utility to check my hard drive and macintosh HD - both are OK
How can I use time machine to continue backing up files? Or am I going to have to partition or erase the hard drive and start a new back up?
Thank you in advance

nevermind! time machine suddenly recognized the disk after half an hour. sorry, I don't know how to delete this post!

Time machine doesn't recognize my hard drive

I have a MBP (early 2011) 2.3 GHz Intel Core i7 with 8 GB 1333 MHz DDR3.
I have been running Lion and backing up using time machine to an external HD. Took machine to Apple to check on a problem which I presumed to be a RAM issue. They ran diagnostics and determined that one of my RAM chips needed to be replace. Also suggested that I upgrade to Mavericks. I agreed to let them do the install, making sure to do a time machine backup just before leaving the machine. They wiped the HD and did a clean install of Mavericks v 10.9.4.
The migration from TM did not work. On phone for hours with Apple while they walked me through manually reinstalling everything from TM to reformatted HD. (what a pain!). Now, I want to back up the HD using the same external HD (plenty of space still available). Plugged in external HD via USB, as always. Went to system preferences - turned on TM. My internal HD is not there. Only finds the external drive.
How do I resolve this problem?

John Galt wrote:
... Are you unable to select the external HD as a backup device?
pres92 wrote:
that's the problem -- my hard drive ("startup disk) is not listed, so I can't select it.
The reason is that the startup volume is not a valid selection for its own Time Machine backup.
The only drive listed is the Time Machine external drive. Obviously, I don't want to back up the time machine drive.
By default, a Time Machine backup volume is excluded from being backed up.
The appearance you describe is correct, otherwise I'm completely misunderstanding your problem.

Time machine doesn't see external hard drive on network

I have a pair of external hard drives connected to my iMac, which is connected to my 2WIRE modem/router via Ethernet. I'm using one of them as a Time Machine drive. For the past couple years, I've been backing up the laptops in the house to that Time Machine drive without fail.
Now none of the laptops (a MacBook and an iBook) won't see either external drive connected to the iMac, even though the iMac has file sharing turned on (as it always has) and both laptops are connected to the iMac via the Finder. Both laptops can see the iMac and the external drives connected to it via the Finder, but in Time Machine, when I try to select my Time Machine drive, nothing appears in the window.
I was having a problem with the Time Machine drive and had to wipe and reformat it, but I don't understand why Time Machine won't see the other external drive either, even if there is a problem with the TM drive. I recall Time Machine picking up all available hard drives as possible backup destinations, as long as they're also seen in the Finder.
The iMac has been having some OS X issues. The Finder will crash sometimes, and I have no choice but to hold down the power button to shut it down and then start it up. When it starts, it takes longer than it normally does, I assume because it's checking and/or fixing some things. However, those issues have been going on for a long time (I think I need to reinstall OS X in it, since Disk Utility finds nothing wrong; also, the hard drive in the iMac crashed about 2 months ago and I put a new one in; I then restored the TM backup to it, and the OS X issues have persisted, which tells me it's software-related, not the drive).
Also, the iMac backs up to the Time Machine drive just fine. Of course, the TM drive is connected to it locally, whereas the laptops have to get to that drive via wireless file sharing.
I did try plugging one of the external hard drives on the iMac into my MacBook, and Time Machine saw it immediately, so my guess is the issue must lie with my router and/or the iMac, but I don't know what to check next. I've restarted the iMac, I've restarted the laptops, I've turned TM on and off on the laptops, and I've turned file sharing on and off on the iMac; none of those things reestablished the connection.
I suppose I could just go with external hard drives for the laptops, but my wife moves her iBook all over the house, so I know hers won't get backed up regularly. That was the nice thing about the system I had in place, which I realize wasn't as elegant as a Time Capsule.
Any advice is appreciated. Thanks.

That should say "Now none of the laptops (a MacBook and an iBook) will see either external drive..." I hate typos.
Anyway, after rereading my post, I'm starting to think I just need to reinstall OS X on the iMac, given the other issues it's experiencing. Any advice for doing that would be appreciated, if that's indeed the solution. Thanks.

Time Machine Won't Recognize External Hard Drive

Hi there,
My father has a 2009 iMac running Mac OS X 10.8.3. Recently, Time Machine stopped recognizing his external Maxtor OneTouch backup hard drive.
I've tried the whole litany of ideas and tips listed in this forum and other websites:
Rebooting both the desktop and the external hard drive
Changing USB ports
Checking Disk Utility (won't even display)
Can you offer any solutions? He hasn't had an issue before, so it seems to be an isolated incident. This desktop is for his business, so it's very important for the files to be backed up.
Thanks.
Update: After submitting this, I received a dialogue box that said the computer cannot read the external hard drive.

If the drive has more than one interface (USB, FireWire, Thunderbolt, eSATA), try one of the other interfaces.
Check that the data cable is securely inserted at both ends.
Try a different cable.
If you're connecting the drive through a hub, connect it directly to a built-in port on the Mac.
If you're connecting it directly, try a different port.
Disconnect all other devices on the bus, or as many as possible.
Test the drive with another Mac. Test another drive with this Mac.
If the drive is bus-powered, but has an AC adapter, connect the adapter.
Boot into Recovery and launch Disk Utility. Is the drive recognized?
Start up in Safe Mode and test.
Reset the System Management Controller
If the drive doesn't work under any of the above conditions, and if another drive does work with the same Mac, then the drive has failed. You may be able to salvage the mechanism by removing it from the enclosure and installing it in another one, or in a drive dock.

Slow iMac and Time machine won't recognize iMac hard drive

I have an older iMac (2.16GHz Intel) that is upgraded to OSX10.6.7. Recently it has been running very slow (although it did not seem to correlate with any particular install that I know of). I have looked at the Activity Monitor and cannot find anything that is consuming vast amounts of memory (although I can't say that I really know what I'm looking for exactly, just no high numbers). I did a Safe Boot and it is still really slow there (EXAMPLE of slow is taking several minutes to open a program or taking 27 hours to download my pictures (which only took 13 minutes on my MacBook)). I know my iMac could use more memory (1G), but the slow problem is there even if only running one program. I can't find a particular pattern to it, it just hangs up and then comes back most of the time. It did however start shutting itself down recently. I finally got into disk utility (I've been trying to run disk utility and it usually goes into an eternal spin that I can't even force quit - have to hard boot). So from disk utility I ran verify disk in first aid - it says "the volume Macintosh HD appears to be ok." I"m not sure what else I'm supposed to do in here either. So my first question is Does anyone have any other suggestions for the slowness? Second, in the meantime I'm desperately trying to back up my data on the time machine that I stupidly have never set up as a back up. I can manually put files one at a time over there, but if I try to use it as a time capsule (system preferences, time capsule on) my hard drive does not show up as one of the options???? My external drive and the data that is already on the time capsule show up, but not my iMac hard drive. So my second question is How do I get my time machine to see my hard drive or is there another way to get my files to move over there? I realize I'm in trouble, any help would be greatly appreciated. I've tried to provide as much info as possible. Maybe there is something obvious I'm missing.

My own response, or rather an update: I took the computer up to the Genius Bar - my hard drive is bad. They are going to try to rescue my data. For those of you reading this with a similar problem, make an appointment and go to the Apple Store if you can. Mike, my personal "genius" for this encounter, said that stressing the machine when the hard drive is going bad just risks damaging it more. If you potentially have a hardware issue, take it and let them determine what is wrong. They have tools and diagnostics most of us wouldn't know how to use if we read about them here - and they have ways of retrieving data (I hope) that most of us do not have. Please note that disk utility said my hard drive was ok, but the diagnostics they did showed that in fact my hard drive was much less than ok, but it was still "mounting" hence the disk utility reporting it was ok. It is over an hour drive for me to get to the Apple store, and I only wish I had gone sooner.

Replaced internal hard drive, time machine doesn't recognize as same volume

Howdy,
The hard drive (call it drive "X") on my iMac (one of the 2005 models) was dying so I had it replaced. I rebuilt the new drive (drive "Y") from my most recent time machine backup (from external drive "A"). I am now having problems with one of my backup devices, in that time machine doesn't recognize that the new disk is conceptually the same thing that had been backed up before (same volume name).
More details... I rotate my backups monthly through three external drives (I store the most recent offsite). After the disk replacement and restore process, I continued to use that backup drive (drive "A") without noticing any problem. Then it came time to rotate my external drives, and time machine doesn't find enough space on the next backup drive (drive "B"). Presumably this is because it doesn't realize that the drive I am backing up ("Y") is a copy of the drive that had previously been backed up on "B" ("X").
Is there any way to convince it they are the same? Or am I in the same boat as this poster:
http://discussions.apple.com/thread.jspa?threadID=2770362&tstart=0
Basically I just want to verify that I am in that same boat before I remove old backup files on "B". If I do decide I need to remove those, are the instructions linked in thread 2770362 correct, or are there better ones?
Thanks for any help,
Bob H

Actually, the backup I deleted above was the backup for the new internal drive. Apparently TM had created the (incomplete) backup during the failed attempt that ran out of space on the backup device. Since the new internal drive had the same name as the old internal drive, I didn't initially realize that's what I was deleting. Not that deleting it causes any harm, but it didn't address the original problem of freeing up space on the backup device.
Not to worry though. I've figured out how to get at the backups for the old internal drive, and am in the process of deleting those. I was about to follow the instructions in your troubleshooting items E3 and E2, but upon attempting to enter time machine I stumbled into the right place. Since I had previously told TM to do no backups (because there was still not enough disk space), and since I'd left the backup device connected, when I pulled up the TM menu from the menu bar, the usual "Enter Time Machine" menu was replaced by "Browse Other Time Machine Disks" (or perhaps "Disks" was "Backups"). This then gave me a list of the machines that I'd backed up on this backup device (in my case machine names and internal drive names are the same). Of course one of those was for the old internal drive, and after choosing it I roughly followed the same course of action as I did a few days ago, to initiate deletion.
I also saw how I could delete each of those old backups individually, but decided against that as I did not expect it would free up enough space. My expectation is that nearly all the space is shared among all the backups for the same source drive, since relatively very little changes between backups.
Bob H

Time machine doesn't recognize my old backups after clean install

Time machine doesn't recognize my old backups after clean install of OSX Lion
I also tried using migration assistant with no success.
I just want to use TM to restore files and folders SELECTIVELY.
Does anyone also know how to fully restore my iTunes data? (purchaces, music, iphone backups, etc)
Thank you in advance

Oh yeah, and the other thing is, now I CAN'T go back in time using my Time Machine back-up . . . It says I've never backed up now (I guess because this is a fresh install that's TECHNICALLY correct), but I restored from this Time Machine file . . . Surely I've done something wrong that can be fixed. Help, please?

Time Machine "Backing up to multiple hard drives"

I had problems when switching between two external hard drives using Time Machine.
Upon speaking to Apple Tech Support I learned that when getting an error code that prevents me from using one of my hard drives, that there is a work around. Seems that when using two hard drives at different times an issue may be encountered. The solution involves using Terminal in Utilities and typing in code from Apple plus the error number on your computer. I'm no expert so won't try to go step by step but the solution worked in Terminal and the code started with sudo chown `id -un` "/Volumes/Time Machine Backups/.0016cbd00dc9"
Disregard the numbers after Time Machine Backups since that is my own error code.
After entering the 'sudo, etc...' it will ask for your computer password.
Then, in Terminal type in sudo chmod 400 "/Volumes/Time Machine Backups/.0016cbd00dc9" and the return key again, and again your computer password.
That all helped solve a problem that even Disk Utility with the Installation Disk didn't help. The problem arises when trying to back up Time Machine between 2 different external hard drives.
Hope this helps some of you...

filterfactor wrote:
That all helped solve a problem that even Disk Utility with the Installation Disk didn't help. The problem arises when trying to back up Time Machine between 2 different external hard drives.
This will keep TM from objecting to the new drive, but you need to be sure the right things are getting backed-up to both drives. This has been discussed here before, and never confirmed, as far as I know. You can be a big help to us by confirming whether this actually works.
Do this please, both for us and so you're confident that both drives contain complete backups:
Download the TimeTracker app, from www.charlessoft.com.
It shows most of the files saved by TM for each backup (excluding some hidden/system files, etc.).
1. Turn TM off temporarily (so it doesn't interfere by doing a backup).
2. Perform backups to both drives.
3. Add a small test file to your home folder.
4. Do a +Back Up Now+ to the first drive.
5. Using +Time Tracker,+ confirm that the test file was backed-up to the first drive.
6. Do a +Back Up Now+ to the second drive.
7. Using +Time Tracker,+ see if the test file was backed-up to the second drive.
Post the results here. If it actually works (the file gets backed-up to both drives), we'll put this into step-by-step instructions for others who want to do this.

Emac won't start up and tech tool doesn't recognize my hard drive.

My emac's been running slow and crashing. Today it got to the point where I couldn't even use the finder when I started up. I tried to start up from tech tool and did so successfully. It recognized my hard drive and I ran the tests and repairs, but during one of the tests it got hung up. I restarted the computer and now all I get when I start up is a little folder in the middle of the screen with a question mark. I started back up from the tech tool cd, but it doesn't recognize my hard drive anymore. I'm really scared I've lost everything. I could sure use some help! The emac is running Tiger.
Jane

jamech,
Welcome to the Apple Discussions!
What version of Tech Tool where you using? If it was an older version, incompatible with OS X 10.4 Tiger, that could actualy make things worse --- see Only use Mac OS X 10.4-compatible disk utilities with Mac OS X 10.4 volumes.
The version of Disk Utility that ships with OS X 10.4.2 and higher is more capable than earlier versions. Try booting from the Tiger install disc, then open Disk Utility from the Installer menu and see if you can run Repair Disk on the hard drive. Refer to Using Disk Utility and fsck. Take note of any errors reported and post back with the results. If errors are reported repaired, re-run Repair Disk until you either get a clean bill of health or a report of unrepairable errors.
When you get the Mac running from the hard drive again, you'll need to determine why it was running slowly in the first place. Anything reported by Repair Disk is of interest here. You could try using a third-party utility such as OnyX to clear caches and logs, and to make sure the maintenance scripts are current (there's a timer in Tiger than will force the scripts to run if you normally have the Mac shut down or in system sleep overnight; the timer is based on elasped time and isn't exact).

I got a macbook pro 2008 and can not back up using time machine. it eject my external hard drive everytime. does someone has a fix???

i got a macbook pro 2008 and can not back up using time machine. it eject my external hard drive everytime. does anybody has a fix???

Does your external hard drive have it's own power supply? It should.
Is your external hard drive formatted with the NTFS file system? It won't work.
It needs to be formatted either with Mac OS Extended or FAT32.
(There are drivers available to add NTFS support to OS X but their quality is unknown, especially the "free" ones.)

Hallo ,why is it that when I delete a photo ,which is backed up by time machine and western digital external hard drive , that I am able to restore the photo okay but not the titles and descriptions . I have a Macbook 4.1, mac osx 10.5.8 . Iphoto 7.1.5 ,

QUESTION.
Hallo , my question is ;whenever I delete a photo and restore it through Time machine and Western digital external hard drive , I am able to restore the photo but not the titles and descriptions . Western Digital inform me that it isn't their external hard drive problem and suggest that it is an Apple software problem ?
I am using a Macbook 4.1 , with Mac OSX 10.5.8 . I photo 7.1.5 , last modifie4d 01/05/2010 -universal . Should I be upgrading Iphoto ?
I hope that someone is able to help in this matter , as i have to restore 12000 photos !
Thanking you in anticipation.
Alan from Wigton

Hallo Kieth ,
I am not quite ready to restore the full iphoto library , as I have days of work re - imputting titles,descriptions and enhancement . I hope that your suggestion works , as I use my Macbook basically to work with digital photography. Through time , I will need to delete my library to recover more disc space and I would hate to have to spend more time re - imputting titles and descriptions all over again .
Thanks for your interest and advice.
regards - Alan

I have a power pc (g5) computer that I will soon be replacing with a current i5 or i7 mini. How do I transfer the Time Machine files from the internal hard drive on the G5 to an external drive that I will later use with the Mini?

I have a Power PC G5 computer that I will soon be replacing with a current i5 or i7 Mini. How do I transfer the Time Machine files from the internal hard drive on the G5 to an external drive that I will later use with the Mini?

Hi, likely the easiest is to just poll the drive & get something like this...
Get MacScan...
http://www.apple.com/downloads/macosx/networking_security/macscan.html
http://eshop.macsales.com/item/NewerTech/U3NVSPATA/
But if you have a good external drive already, just clone it.
Get carbon copy cloner to make an exact copy of your old HD to the New one...
http://www.bombich.com/software/ccc.html
Or SuperDuper...
http://www.shirt-pocket.com/SuperDuper/

HT201250 How can I migrate a Time Machine backup from an external hard drive to a new TimeCapsuls?

I just got a 2TB Time Capsule. I want to migrate my time machine backups on an external hard drive to the new Time Capsule. I have about 430Gb of files to back up; I don't want to wait 7-8 days for the backup, unless I have to. I am using OS 10.7.5 (forget which cat that is). I have mounted the TC drive as 10.0.1.1; I tried to drag and drop from old to "data" on TC, but I get the error "The volume is the wrong format for a backup." Any ideas how I can move my old files to the new, and bypass creating a brand new backup file?
Thanks.

Rather than do that, which means starting over from scratch, losing all your edits, organisation and so on, why not simply use iPhoto Library Manager to revert the Library to the older version? Easier, less destructive.
The instructions on that are here
If you really want to start over: you can access the Originals folder simply by going to your Pictures Folder and finding the iPhoto Library there. Right (or Control-) Click on the icon and select 'Show Package Contents'. A finder window will open with the Library exposed.

Re Time Machine I have an external hard drive with files I backed up manually over the past 2 years 1TB of memory. I am finally taking the leap to use Time machine to back everything. will I have to reformat that drive, thus wiping my previous bac

Re Time Machine
I have an external hard drive with files I backed up manually over the past 2 years 1TB of memory.
I am finally taking the leap to use Time machine to back everything.
will I have to reformat that drive, thus wiping my previous back ups?
can I split it the drive in two partitions?
Also
as I have two separate Macbook Pro's- one older than the other.
OSX 10.68
the other is
OSX 10.75
can I back them up separately?
or even synch and merge files and folders etc? between the two?

You CAN use a drive with files already on it to store Time Machine backups. But long term, that is not recommended. You do not need to reformat or re-partition the drive to do this. Once Time Machine Backups are established, you could remove the old files.
But do not delete Time Machines files with the Finder -- that can cause it to lose its place and lose everything.
With the cost of backup drives under US$100, it might be a better idea in the long run to get another drive. Best results from Time Machine is a drive about 3 times larger than the drive(s) you are backing up.

HT203177 Time machine doesn't recognize my hard drive archive

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