After blackout Mac-formatted ext. hard drive won't mount says its pc-formatted
Okay, there was a power failure at my house today which removed my Lacie 500GB hard drive from my MacBook Pro running Leopard. When I reconnected the hard disk it wouldn't mount. Using Disk Utility I was able to see the disk, it says its not a mac formatted disk, but a pc-formatted disk and won't mount it or recognize how I named it (I have never connected it to a pc and it very definitely was mac-formatted before--I hadn't partitioned it or anything but used it straight out of the box). I had a friend come over with his PC laptop and it mounted there with all the files seemingly intact--we opened some of them and everything you're not supposed to be able to do this without the appropriate application! I've no idea what happened. Any way I can get those files back for my mac to read without reformatting the disk and losing what still is there. PLEASE HELP. I'm editing a documentary and all the Final Cut Pro files are there! Its 300GB in there.
Re: After blackout Mac-formatted ext. hard drive won't...
Here is my best guess and strong suggestion. First do nothing else until you have your work off loaded to some other drive or media....and I mean do nothing....don't even turn it off until this is completed. Once that is done verify your work is there. Then learn to smoke or drink and sing hallelujah.
My best guess is you lost the FAT (file allocation table)...meaning it got (literally) zapped by the power failure (spike) which makes sense since it's continually being accessed. Lacie should have a disk diagnostics program on their website....that loaded onto a diskette or cd would be my first step. It will tell you if the drive is good or not. If good and after you have off loaded your files to a safe media then the fastest solution is probably to reformat and reload your applications then reload your files. I say fastest as (in my twilight years) I have almost (it's a pride thing) given up solving hard problems the hard way...particularly when they can be both hardware and software interrelated.
A couple of other points....uploading to the net your files (even if it costs) or using a bit torrent to transfer to a friends machine (pay for the other drive) or using raid (which I am not a big fan of) or copying them to a one touch....(possibly the least expensive solution (just start it at night...it's not fast the first time and do it daily). You have too much invested to get had by Mother Nature.
Why would I tell you this....well, there was the time I worked all night to finish some code and just as I finished (without saving once) and feeling satisfied I stretched back, extended legs and knocked the plug out of the socket. I also had a computer shop wipe my disconnected spare duplicate drive at the same time they wiped my master. Today, and I have multiple large projects I work on (mine...not others), and despite more backups in more ways than you can imagine I am still subject to bouts of paranoia.
Lastly....Am not up to date with Mac but at some of the freeware sites I have run across utilities that might be of help. Trying to restore the fat (Windows keeps two copies) might be a possibility and I assume Mac has something similar. But I would only attempt this based on what the drive diagnostics results are....i.e. if you have more than 4 bad clusters it's probably not worth taking the chance of another major disruption. Hope this helps or at least points you in the right direction. Tango
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You need to format this hard drive using your PC. If the hard drive was formatted using the MAC then the PC won't see anything on the hard drive because the MAC uses a different file system that is not compatible with the PC. BUT if you want to exchange files between the MAC and the PC then format the hard drive using the PC in FAT32 file system. The MAC can read and write to a FAT32 formatted hard drive.
A Windows PC computer will not read files on the WD hard drive that has been formatted on a MAC. The fix. Copy your photos onto the MAC computer then remove the WD hard drive and connect it to your Windows PC and format the WD hard drive in FAT32 file system. After formatting has been completed remove the WD hard disk and connect it to the MAC computer. The MAC can read and write to a Windows FAT32 formated hard disk. You can now copy the photos from the MAC to the WD hard disk. When copying is complete, remove the WD hard drive and connect the WD hard drive to your Windows PC and you can now copy the photo from the WD hard disk to your Windows PC.
Hi Cindy. Is it the Mac that has stopped working or the hard drive? If it's the Mac then the drive is probably OK and can be accessed though anopther mac after removing it from the Mac chassis. If the Mac will power up then it's drive can often be accessed even if the mac itself won't do anything. If the HD itself is not working then things are more difficult. It is most likely going to cost you regardless of the nature of the failure. Failed HD recovery is not cheap. It just goes to shjow that when we kept our photoghraphs in a shoebox under the bed all we had to worry about was the house catching fire. Backups are cheap. when you get this sorted, the very next thing you must do is get a back-up drive.
The Hitachi XL3000 is formatted for the PC, but your Mac should recognize it. Try another cable or port. Check in Disk Utility to see if the drive appears. If it does, then you can format it for the Mac. You can do this in Disk Utility by clicking on the hard drive on the left side of the window. Then choose the Partition Tab, and change the Volume Scheme drop-down menu to 1 Partition. Then click on the Option button, choose GUID partition map, and click OK. Then choose Mac OS Extended (Journaled) for the format and click Apply and OK. Your drive should then format for Mac and mount on the desktop. If it does not appear in Disk Utility after changing the cable and port, or trying another computer, then you may need to return it for replacement. I hope this helps.
Have you ever connected this external harddrive to a macbook?
If you formatted it with your mac, it typically formats to a mac filesystem. What you would need to do is plug it back into the macbook, open up Disk Utilities, and then, after choosing your ext. hdd. you tell it to format into the EXFAT format. which is compatible with both systems.
HI. you are right DO NOT FORMAT!. First try removing the hard drive from the case and connect it to
another computer to make sure it's not the hard drive. Also try other computers and other Operating Systems, Linux, Mac. If you have a friend with a mac (everybody knows one) try using the other interfaces - connect it via USB or Firewire, or eSATA on Mac and Windows. I had many issues like this and I was able to recover the data of Windows using Mac and viceversa. I
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Check the file system of your hard drive. If your PC is recognizing it, check if its a FAT or NTFS. If it is NTFS then you have to reformat it using your Mac and choose FAT. Mac OS recognizes NTFS as a read only drive. If you plan using it with your PC and MAC you should format it using your mac and choose MS-DOS in disc Utility. You cannot format the drive using your PC Computer with a FAT file system because of the capacity. Only Mac can format it with a FAT file system.