Can't back-up to ext hard drive (Error code CE-37850-3)

Since the 2.55 update I haven't been able to back-up my saves to my external hard drive. I used to do this regularly as my online storage is full. Now when I try it I just get the error code CE-37850-3. Have tried unplugging and reconnecting the hard drive. Can anyone help?

hgwells wrote:
Leave the drive connected for a while (say 30 minutes), then try again. Am already doing this as I just leave the ext HD connected to the PS4 all the time, then at the end of a gaming session I back-up all the games I've played that day. My PS4 isn't even recognising the ext HD as when I click on USB storage to see what's on there I get the same error message. Never had these problems before this weeks update (2.55) Thanks for your reply anyway.

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Can't back up to ext hard drive

Every time I try to back up to external hard drive to always say's "The backup disk is not in Mac OS Extended (Journaled) format, which is required."please can someone tell me how to fix this problem...

Format the External Hard Drive.
Go to Utilities > Disk Utility
Select the Erase tab, then select the format and erase the drive.
*If you have anything on the drive, make sure it is backed up to another drive. It will erase all data on the drive and reformat it.

How to Copy a Specific Time Machine Back-Up to Ext Hard Drive

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don't delete anything on the TM drive using finder. you can do it from TM interface. however, in your case it will not help because TM will always make a full backup after a system restore like you did and there is absolutely no way to avoid it. as suggested you might want to reformat the TM drive and start backups from scratch.
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ITunes can't "see" music on ext. hard drive....have to manually find

I have had my music/movie library (approx. 50gb) stored on an external hard drive and have been managing the music with iTunes for my iPod.
Now, for some reason, approx. 75% of my library has an exclamation point next to the song name on iTunes indicating that the song cannot be located.
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I don't know if you've already found a solution to this problem but this tends to happen to me when I forget to plug in the external hard drive before I open iTunes. What happens is that iTunes automatically creates a new iTunes Music folder in the iTunes folder of your Music folder (if you follow my drift). iTunes then looks for your music there;but it's not there because it's on your external drive. It then puts an exclamation mark against any music file that it can't find there. If you go to iTunes-preferences-advanced,click change,and change the iTunes Music folder location back to the folder on your external hard drive,or,if no folder,the hard drive itself,where the physical files are kept then iTunes should update its library and find them. If,of course,you've imported files while the iTunes Music folder is back in it's default position,they will have to be reimported.Make sure 'Copy files to iTunes Music folder when adding to library' is ticked,drag them out of the default folder to the desktop,double click,iTunes will reimport them to the external hard drive.Trash the files from the desktop when they've been copied over. Of course,there may be a simpler way of doing this but it works for me. Hope this helps.

Can I back up my external hard drives to time machine?

Hi,
I've backed up my laptop and two external hard drives to my time machine - but because the data on the hard drives were backed up through my computer over a month ago I can't now seem to access the back ups of the hard drives.
Is there a way of accessing the back up of the hard drives from the specific day I did this, or is there a more efficient way of backing them up so I can permanently access the back up files for these drives?
On other answers to similar questions:
'Any drives not specifically on the Exclude list will be backed up' - my external drives are not permanently plugged into my computer so the back up seems to be overridden on the next back up.
'Just be sure your backup drive is large enough - at least twice the capacity of the total capacity of the drives being backed up.' - time capsule is 2TB, I have external drives with 1.5TB of info at the moment, will this be sufficient?
Thanks,
P

I plugged the hard drives into my laptop and the time machine backed them up as if they were part of my computer on the routine hourly back up.
But because I only had the back up drive plugged in for the duration of the actual back up, the external drives only show up in the time machine on that particular day, and subsequent hourly / daily backups on time machine didn't show the external hard drives again.
I only seem to be able to access a month's worth of backing up so because the back up of the external drives was done over a month ago I can't seem to retrieve the back up of the external drive I did on that particular day.
Does that make sense? Is there a better way of doing this?

Why can't I copy files from my external hard drive - error code -50.

I sm trying to back up an external hard drive to a network drive. Some files copy but not all;. SOmetimes a folder seems to have copied but then I see that most of the files inside have not. And sometimes I just get 'An unexpected error has occurred'. Error code - 50.
I need to have a back up copy of the files on this hard drive. How can I stop this happening and copy files properly and securely?
The external hard drive is a LaCie bought from Apple, share formatted FAT32.
The network drive is a WD MyBookLIve Duo which WD tell me should work equally well with any operating system.
Please advise. I need to archive a security copy of this data urgently
John Wood

Have u tried the usual? Safe boot. Delete finder plist files? etc. And the drives are formatted for mac yes?

Macbook Pro can open files from Touro ext. hard drive but can't save to it. Solutions without data loss?

Hello,
I've looked around for a solution to my problem but I haven't found any specific solutions and I'm not comfortable in trying general ones for fear of loosing my data. Before moving I backed up all my document and music files from my PC to my Touro external hard drive. My main goal for buying this hard drive was to use it to store my itunes music library to save space on my computer and transfer my music from said PC tp my new MacBook Pro after the move. Today I set about doing so and was able to set my itunes up to pulll from the hard drive as well as load all the music I had saved on the hard drive into my MacBook itunes. The trouble came when I tried to download new purchases. It turned out I couldn't because itunes was unable to save them in the new file location on the Touro. I checked into it and I have the same problem with the documents as well; I can open anything already saved on the drive but I can't save any new files. It keeps on telling me I don't have permission to make edits. I'm afraid this mean I have to reformat the Touro for Mac but doesn't that mean I'll lose all that data? Does anyone know of any somlutions that would give me access to the drive without compromising what's already on it? I would just plug it back into the PC and see if I could adjust sharing settings, but it's all the way across the country now. Any help in this matter would be greatly appreciated!
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-G-

It sounds like your HDD was formatted under windows NTFS, which although your mac can read, it cannot write to that file format.
You will either need to transfer the data to another location while you reformat it as FAT on your mac using Disk Utility. Or you could purchase something like iPartition and change the file format to FAT which might take up to 24hours or so depending on the size of the drive. I have never had a problem doing this before but it's not guaranteed that your data will not be lost doing this.

Can I back up an external hard drive as well as my internal hard drive?

Hi,
I have an Intel Core Duo iMac with a 320GB internal hard drive. I have a 500GB Digital Western external hard drive attached via firewire where I store my iTunes library and iPhoto library. I also use this drive for Time Machine to back everything up, this drive is unpartitioned.
Being stupid, I have only just realised that my Time Machine is not backing up the iTunes and iPhoto libraries as they are on the same drive as my Time Machine back ups. I do however keep a copy of the iTunes and iPhoto Libraries on another external hard drive (WD My Passport 320GB) just in case.
To back everything up, (Both internal and external hard drives) I intend to buy another external hard drive as my sole hard drive for Time Machine backups.
My question is, am I going about this in the right way? What size drive should I get? I was thinking 1TB but at the moment money is tight so 500GB might be all I can afford, will this be enough to back everything up? considering not all the drives are full.
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Given you have 640gb total space, and the default TM backup mode is "Full" probably would not take too long to completely fill a 500.
I just bought an (internal) 1tb on Amazon gold box for under 80$.
Not sure what deals OWC is currently offering.
Given many of the 500gb externals on amazon are running around 100$, for as little as 17$ more, you can go to 1tb.
add another 20 to that, and get 1-1/2tb external.
1tb external for 117:
http://www.amazon.com/Western-Digital-Essential-External-WDH1U10000N/dp/B000VZCE UI/ref=pdbbs6?ie=UTF8&s=electronics&qid=1239974063&sr=8-6
1tb external for 125.
http://www.amazon.com/Seagate-FreeAgent-External-ST310005FDA2E1-RK-Silver/dp/B00 1FWEETK/ref=pdbbs_sr2?ie=UTF8&s=electronics&qid=1239974063&sr=8-2
or a 1-1/2 tb for 140:
http://www.amazon.com/Seagate-FreeAgent-External-Drive-Silver-ST315005FDA2E1-RK/ dp/B001FWCB7C/ref=pdbbs10?ie=UTF8&s=electronics&qid=1239974063&sr=8-10

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Hi,
I'm looking at getting a new Macbook pro - mainly for photo editing. Am concerned that I may run out of storage and don't really want to pay over the odds to increase storage so was thinking of purcahsing the LaCie 1TB Rugged Thunderbolt/USB 3.0 Hard Drive to store my photos on. I was then looking at the time capsule for back-up. Can I back-up photos from theLaCie 1TB Rugged Thunderbolt/USB 3.0 Hard Drive to the Time capsule?
Many thanks

Of course, always that the external drive is formatted in “Mac OS Extended (Journaled)”. Apart from that, you shouldn't have any issue,
Then, open System Preferences > Time Machine > Options, and remove the external drive from excluded items. The next backup will include your external drive.
Note that you may not be able to back up the external drive if it's connected to your Time Capsule. If it doesn't work, connect the external drive to your computer

Can you use a USB ext hard drive to boot from clone image?

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Yes, hold option booting from USB cloned boot drives work.
Although FireWire 800 is faster as you already know.
As always check to make sure you can.
Another secret, Mac's can be option/c booted off burned ISO of PartedMagic cd's too.
What's nice about this little gem, the whole Linux operating system loads into RAM and you can copy files from the non-boooting Mac's internal hard drive to a external drive, of nearly ANY format.
You can also burn disks, as the PartedMagic cd spits out after loading.
And you can get on the internet, and do malware scans and a lot of other niffty things.

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Hi, Steve. Your proposed procedure is just fine until you get to this point:
...reformat the WD to be Mac friendly *and reformat in FAT32* ...
Reformatting the newly-reformatted Mac-friendly drive as FAT32 will, as you say, simply put you back where you were before, but with your data on a different drive. Omit that step, and you'll have a Mac-friendly drive that you can copy your data back onto.
If you normally work with files exceeding 4GB in size, you won't want any hard drive in FAT32 format. If for some reason you'd like all your external drives in NTFS format, download and install the NTFS-3G driver, which will enable your Mac to read *and write to* that disk format.

Cannot delete file from external hard drive (error code 36) in Finder, but Terminal is ok

I have a relatively new Macbook Pro Retina 15" and have a Western Digital 1 TB Passport. I've been using the passport for about a year now without any problems on older Macbooks in my house. I used to be able to read and write to this drive no problem. I am using the Paragon NTFS for Mac software in order to read and write to the NTFS drive. When I navigate through the drive in Finder, if I try to create a new folder, I do not have a problem. If I try to delete that folder I just created, I get this error:
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rm -rf "untitled folder"
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Thanx for such qucik reply!!! The pages were great, it had an answer for my problem, but unfortunately it also involved me dealing with it only on the MacIntosh HD itself, not on mounted external drive I suppose... So it didn't work they say that there is an icon in the left corner indicating locked folder - I don't see any icon on it. It says you can untick the box to unlock the folder - there is no tick to be unticked. Finally, they say that if I don't have permition or rights I cannot delete it. But how do i change permittion which already says that i can read and write in it? So everything appears to be normal only I cannot delete it. there is not even any warnig telling me I don't have enough rights, it just requires the password and after me typing it in it makes the sound of scraping paper but does nothing more. I aslo had some problems with emptying Trash after being seemingly succesful with one file and had got so far to have them appear in the Trash (no clue how this one actully got there though..) I followd the advice and emptied the Trash with Terminal. The Folder is still there but it shows 0 Kb... So far so good BUT: It is still on the external drive, so I obviously only managed to copy it into the Trash!!! Phew, innit a bit too tight to poor owners, this macbook?? I want my rights back!

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Hello, I'd forget any LaCie software installs, not needed.
In Disk Utility, what Format is the Disk?
How to format your disks...
http://www.kenstone.net/fcp_homepage/partitioning_tiger.html
(To Install OSX on an IntelMac the Drive it needs the GUID Partitioning scheme mentioned at the bottom.)
Thanks to Pondini, Formatting, Partitioning, Verifying, and Repairing Disks...
http://Pondini.org/OSX/DU.html

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Hi,
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Regards,
DP-K
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Can't back-up to ext hard drive (Error code CE-37850-3)

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