OS X V10.7 Lion :: Read And Write To External Hard Drives?
Apr 13, 2012
hey all, this has been really frustrating for me today. i want to be able to write to an external HDD that's formatted in NTFS. today i find out it isn't possible to write to this file system on a Mac and that on FAT32 it is possible. however, FAT32 can't address files larger than 4GB so this hurts me a lot. are there any other file systems that'll allow me to read and write from a Mac? my goal was to use freeNAS to build a NAS with an old tower and connect my external hard drives to it, but if i can't write to them this may not be possible.Â
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Sep 17, 2007
This issue has been killing my work flow for quite awhile. I have a G5 dual 2.0. I can barely read or write files to an external hard drive. Say I try and copy 1.56GB of audio (12 files) from my external drive it will start to copy then stop at 500mb for minutes then start moving as normal and stop again around 900 for minutes.. then again at 1.4. This also happens when writing.
Here is the confusing part. This happens with two external drives (different models) with firewire 400, 800 and USB. I have reinstall OSx. I have repaired permissions and ran repair disc on everything. These hard drives work FLAWLESS with my Macbook Pro as well. Gr what can this be? It takes forever to copy data to or from a drive which is often how I transfer audio between my desktop and laptop. I should soon have Mac Pro money and this crappy G5 can go out the window. I am on 10.4..
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Feb 15, 2011
i had a External Harddrive.Currently i can Read//Write on it in Windows PC(Windows7)But when i use the same drive in Mac i can only read...but can't able to write. How to resolve this issue
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Mar 25, 2012
I recently borrowed my brother's laptop to use as a media station for listening to music from, and watching movies, in order to free up some space on my main macbook. In trying to migrate some files over, I discovered that my hard drive, a 320 GB WD Elements drive, is having some problems which I've never encountered before. It has always worked fine in the past, but now I can't transfer any files to or from it, from either computer. In all of my troubleshooting, I've gotten various errors, (-36, -50), and various messages saying how the device can't be read or written from, or how some files contian unreadable data, etc.Disk Utility found an unused node when verifying the disk, and notified me that the disk needed to be repaired.I then used Disk Utility, which said it was able to successfully repair it, but the same problem remains, and after verifying the disk, it still says it needs to be repaired.I've tried to find any files that may be causing the problem, and was finally able to delete a seemingly troublesome file that was stuck in my trash bin from the external drive after trying various apps, (ie Trash It, Cocktail, What's Keeping Me?).This didn't end up solving anything...I've used terminal to eliminate some other potentially problematic files, with no luck still, and I'm not too confident with Terminal so I don't want to be messing around too much without more guidance.
I've used Disk Warrior to try to solve the problem, but still with no success.When I use the app to Check All Files and Folders, it does so for only a few seconds, then reports that "An unexpected error ocurred while attempting to perform file operations" for several files, and that several files' "Property list is damaged and cannot be repaired". When using Disk Warrior to REBUILD the drive, the app pauses for about 15 seconds, then says that it can't be rebuilt because it is in use.Again, I've used the What's Keeping Me? app to kill any activity with the drive, and the same error occurs.I've spent a lot of time trying to sort this out.
Info:
MacBook, Mac OS X (10.7.3)
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Nov 14, 2010
I bought a Seagate Free Agent Go Flex External drive. I transferred all my files from my previous external HD.
When I went to access my folders on my external HD, the folders are all locked, with Sharing and Permission section in the Information "Everyone: Read" only! I can't change any of the information or move things! All of them are locked and "read only." I know how to change it, but only manually, individually. I have several hundreds of folders and I don't want to manually change all of them to "Read & Write." Is their a way to let me re-set the folders to "Read & Write" easily??
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May 21, 2012
I have an external hard drive(seagate 250 NTFS format) which i have used on my windows 7 computer now that i'm trying to load the information onto my macbook pro (10.7.4) it will not let me change the permissions nor duplicate the files. How can I be able to edit and save the information to my mac from the external drive??
Info:
MacBook Pro, Mac OS X (10.7.4)
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Mar 11, 2010
I can't read any external hard drive on my laptop, but both mine and my friends smaller 250g WD HD were visible on his mac.
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Aug 12, 2010
I have an external Transcend HD, which has been working perfectly fine for around 5 months now. It is NTFS, and I use NTFS-3g and Macfuse. Been running fine. Was able to read and write. Suddenly I am only able to read though. I go into the "Get Info" pane and the option to choose whether I want to read and write, or read only is gone, and all that it says is "You can read only". getting this back to read and write is really appreciated. I really need this disk.
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Apr 10, 2012
I use Paragon HFS+ for Windows which allows me to read and write to my HFS formatted drives. It works great for any external hard drive I use but when I use a flash drive it doesn't work. I format both my external hard drives and flash drives the same way, I use Disk Utility, I format them using Mac Extended Journaled and GUID partition scheme. When plugging in my flashdrive, my Windows 7 PC will not mount them. Disk Manager shows 3 partitions: EFI, Fat32 and some empty space. If I format my flash drives using the Master Boot Record partition scheme they work great.
So, here's what I have so far: External hard drives work fine when formatted with the GUID Partition scheme. (Mac extended journaled) Hard drives also show 3 partitions in Windows Disk Manager: EFI, HFS and empty spaceFlashdrives show 3 partitions but oddly enough the second partition shows as FAT32. But is completely unusable in Windows 7 Flash drives have to be formatted using the Master Boot Record partition scheme when formatting them as HFS+ volumes in order to work on Windows 7Windows 7 supports GUID partition schemes.
What is causing my Macbook Pro to treat an external hard drive differently then a flash drive when formatting them? Experience and common sense tells me that it shouldn't matter whether it's a flash drive or spindle drive, both should format the same. Granted, I could simply use exFat or FAT32 on my flash drives for cross platform compatibility however I prefer to use HFS+ when possible.
Info:
MacBook Pro, Mac OS X (10.7.3), 2007 MBP, 2.16Ghz, 3 Gigs of RAM
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Jun 17, 2008
this is the second time i have encountered this problem. when i plug in an external hard drive via USB, the lights go on and i can hear the hard drive clicking a whirring but cannot find it anywhere on my mac. both with hard drives formatted on pc's and macs.
running a G4 Powerbook, power PC 1.67ghz
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Jun 19, 2010
How do I format an external HDD to read/write on a mac osx running snow leopard, and also let it be able to be readable on windows vista/7?
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Oct 4, 2009
Why is this? I can't changed it mac won't let me. What do I do?
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Jun 30, 2010
I may end up getting another external hard drive & would like to be able to stay with NTFS so I can use it with either PCs or macs, there is a PC in my home & I would like to be able to use it between the PC & my macbook pro. Does anybody know of good reliable software that does not hog resources that will enable me to read & write NTFS on my macbook pro?
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Oct 13, 2010
What is the standard tool to test your hard drives read/write speeds? I'd like to test my new SSD to see how fast it really is. I've heard you cant trust XBench for that which is the only thing I have to use.
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Jun 21, 2012
I just had the hard drive replaced in my IMac and it only at 1 to 1 or maybe 2 to 1 speed. my old one did over 10 to 1. car it be speeded up? Any way to get hard drive to read/ write faster?
Info:
iMac, Mac OS X (10.7.4)
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Dec 24, 2009
I've always wondered this: I know when you mount a drive (USB stick, FireWire external or even an iPod of some sort) in OS X, a few invisible files get created. And if you have an AV program, sometimes it will write files to the drive. Same with some other third party apps. Do any of these files contain personal information, or things unique to the machine? Like user name or directory structure or things of that nature? I assume they don't, or else you'd probably see it mentioned more often, but I was wondering if anyone had a definitive answer..?
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Oct 25, 2010
I have my iMac since August. I use it a lot, and I've noticed that the hard disk makes read and write noise a lot of times, even using Safari, for example. It looks like fragmented. What can I do?
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Mar 30, 2012
I have an early 2009 macbook, with 320 GB hard drive and running OS Lion, after i upgraded my os to lion, the computer ran perfectly normal, although a little bit slower than running snow Leopard. However, recently I notice my mac become very slow, got rainbow wheel even when i open the safari. then I use the black magic to test the hard disk speed, it appears the read and write speed is only a little over 30mb/s.
i have recently change my keyboard at apple store, I notice my mac slow down after that, do you think it would related?
Info:
MacBook, Mac OS X (10.7.1)
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Apr 23, 2012
What's the best way to mirror two external hard drives connected to two separate computers on a network? Can this be done with the built in file sharing capablities of Lion or do I need to use a utility such as Forklift?
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Mar 30, 2012
My iMAC will not find my external hard drives.
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.3)
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Jun 4, 2012
I want to install Lion on my iMac. It is currently running version 10.6.8. I have 3 external hard drives connected to the iMac. Should I disconnect them before installing Lion?
Info:
iPad 2, iOS 5
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Apr 3, 2012
I have a shared folder on Lion Server. The permissions for the folder are set to everyone can read & write. When I add files from another computer to the shared folder the file permissions are not set to read & write for everyone. Is there a setting I am missing on the server to make all files added over the network to have the same permissions as the folder?
Info:
Mac mini, Mac OS X (10.7.3)
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May 21, 2012
I have a Windows/DOS formatted external harddrive adn want to access/write/delete data from it using my MCP with Lion OS. I downloaded NTFS-3G 2011.1.15 and installed and restarted my Mac but then got this error when OS started and I cant see my Windows external disk any more. I am not 100% sure if the format of this disk was FAT or NTFS.
Info:
MacBook Pro, Brand New!
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Dec 4, 2014
my External Seagate Hard drive just changed to read only on its own?
I went to get info and scrolled down to the Sharing and Permissions
But there is nothing there but a greyed out : You can only read
There are No boxes to check or uncheck, No options to change to read and write, No name of owner or ignore ownership box. NOTHING ELSE IS THERE
I have recently upgraded to Mountain Lion and am having other problems as well
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Dec 29, 2009
Every time I reboot my computer my external drives are all set to "read only". I have to eject them, and remount them and things are then fine again, but this is an annoying step and the fact that a reboot is causing them to switch to read-only is having me worried.
Anyone else have this problem/know of a solution?
I've been trying to figure it out over at the official apple forums but we're not getting anywhere... the thread is here:
[URL]
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May 12, 2012
i have this strange issue that occured just out of nowhere without me (knowingly) having contributed anything to it.yesterday i launched my iMac and my external firewire drive wasn't showing up in neither the finder nor on the desktop. i instantly thought about a hard drive crash, but soon tried other things to evaluate (or not) my guess.Â
for instance, i unplugged the drive waited a few minutes before i plugged it in again. since this iomega drive is also equipped with a regular usb port i also switched cables and tried connecting it via the iMac usb sockets as well as via an usb hub without any luck. the drive still won't show up. so i launched the Disk Utility, to see if the drive needs some checking/repairing, but to my surprise it wasn't showing in Disk Utility either.Â
thus far i only considered this to be an issue with only this particular external drive, but when i eventually switched on a 2nd external drive (this time an usb drive i use for Time Machine) that drive also refused to show up in either the Finder or the Disk Utility app.Â
curious as i was, i then fired up a 3rd and 4th external drive and now had all 4 drives running at the same time. none of which were showing up, just as if they weren't even connected with the iMac.Â
this strikes me as more than odd. i've heard about hard drive failures and crashes. they just occur over time. maybe and under some very strange coincidences it is possible that two external hard drives quit their jobs at the very same time, but seriously .... 4 of them?? i hardly think so.Â
well, maybe it's the iMac's usb/firewire controller that's causing the trouble, i thought. but then again, my other connected devices (iPhone, iPad, Printer, Scanner, eyeTV) are functioning and get detected just fine as far as i can tell.Â
i have no idea what's going on. i dismiss the idea of 4 external drives having crashed all at the same time just as much as i don't think that the iMac's usb/firewire controller has got any issues. re-formatting any of the 4 drives is out of the question and even if i'd consider such desperate measures, the Disk Utility wouldn't let me re-format anything anyhow, because the drives aren't listed there. i wish i could just use my Time Machine to resolve the issue but, as i mentioned earlier, i can't access the Time Machine because it also won't show up.Â
Info:
iMac, Mac OS X (10.7.4)
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May 5, 2012
How do I change a file or folder permissions from 'read only' to read/write.
I want to edit some music track information in iTunes, but my iTunes music folder is 'read only'
Info:
iMac (21.5-inch Mid 2011), Mac OS X (10.7.3)
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Feb 15, 2011
When I connect my external hard disk (Maxtor) to my Mac Book Pro, I am not able to copy/transfer files to it, though I can copy from it to my Mac. How do I change the permissions from Read Only to Read and Write?
Information:
MacBook Pro
Mac OS X (10.5.6)
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Oct 4, 2010
I cannot put files in my flash drive for some reason. How do I change this setting? My flash drive format is Windows NT File System (NTFS).
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Oct 20, 2010
i used to have a bunch of files on my hard drive before i sold my mac pro
i backed everything up on an external hard drive so i can keep it until i received my imac. now i have my imac, and when i try to transfer over the files to my imac, or another external hard drive, sometimes the copying stops and says something along the lines of "you do not have permission to copy this file"
so i guess some of my files got messed up, putting them in "Read only" mode.
i know i can go to "Get info" and then manually change it to "read and write" mode but honestly theres so many files it would take a lot of time.
is there a script, or an app i can run that could scan my whole external hard drive so it will go thru each file in their own specific folder and change the permissions to "read all write all" without me doing it manually one by one?
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