OS X :: External Drive And Disks Don't Show On Desktop, Visible In Disk Utility, Can't Burn DVD
Feb 8, 2010
Disks I put in the Superdrive, external hard drives, or anything in the USB or Firewire (thumbdrive, etc) -- nothing shows up on the desktop. All are visible in Disk Utility. USB thumbdrives and external hard drives are visible in the sidebar in Finder, but disks are not (only disk utility).
Because of this I can't burn a disk because the disk is not being recognized. In Disk Utility, the external hard drives appear mounted and can be opened in Finder, but why aren't they appearing on my desktop (they used to)?
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Mar 11, 2010
My PowerBook G4 crashed and I need data from it. I already had bought an external drive and had begun loading some fotos and music. Now I'm at a friend's Mac, firewired and all, and the external drive (visible in the disk utility) isn't to be found.
I don't want to erase and reformat, obviously, ... can I drag it onto the desktop from the disk utility?
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Jan 31, 2012
I've connected my new Iomega Minimax with a firewire cable directly to my iMAc but nothing appears on my desktop.
Info:
iMac
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Jul 28, 2009
I am desperately trying to burn a ISO file to a USB and external HD but Disk Utility does not want to. Instead I get the error message "Could not validate source - error 254". So there must be a problem with the source which is the ISO file.
I already tried setting the Partition Map Scheme to both Master Boot Record and GUID Partition Table. I also formatted the drive to FAT and HFS+. I cannot find the cause of this error. It clearly looks like Disk Utility does not like burning ISOs to USBs or HDs.
However, I really really need to this since I cannot burn ISOs with my SuperDrive which is also a common problem [URL]with my MacBook Pro.
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Aug 31, 2010
The HDD in my wife's black MacBook (2007, I think) won't boot up. I've run Disk Utility and have decided it's pretty much dead. I have a Carbon Copy backup, so the data is fine. I've tried replacing the drive twice now, and the MacBook simply won't "see" the new drives. When I install the drive, nothing shows up in Disk Utility (run either from the install disc or the Carbon Copy backup drive in a USB enclosure).
The new drives are formatted (I even copied the bootable backup to one of them), and the computer sees them just fine if I install them in a USB enclosure and hook them up that way. When I put them in the computer, though, no dice. Her old, corrupted HDD still showed up in Disk Utility when I reinstalled it, but the new drives don't.
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Aug 28, 2014
I am trying to repair my mac. But in disk utility, the hard disk is not visible to proceed. Its showing disk0 -> volume with only 1.79GB. and all the options are disabled. The capacity of my mac book pro was 500GB.
Info:
MacBook Pro, OS X Mavericks (10.9)
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Apr 24, 2012
I have a 2TB Western Digital My Book Studio FW800 external that has 5 partitions, connected to my 2011 iMac. I had help doing the partitions and don't really remember the reasoning, but one is just for my SuperDuper! backup, one is Miscellaneous, one for movie clips off my camcorder, one for misc scanned photo's and one for my genealogy research. I back up using Time Machine to a Time Capsule and also to this WD hard drive with SuperDuper!
Recently I'm getting a pop up message that "Mac OS X can't repair the disk "Genealogy"'. And it needs to be reformatted. It's become a read only disk. When I look in Disk Utility it shows all the partitions as "Mac OS Extended (Journaled)" EXCEPT for the one in question. I also noticed that there are a lot of files with "date created" being the same date in 1969! These files may be letters I've written or photo's I added to that partition within the last few years.
I think I have to completely reformat the entire external hard drive to repair this, but I want to make sure. Because it's going to be a major hassle backing it all up to another external (having to get one first) and then figuring out how to make the files that have turned "read only" in that one partition, back to their original state! Does this sound right, that I have to reformat the entire external hard drive? And how do I get the read-only files back to their original state.
Info:
iMac, Mac OS X (10.7.3)
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Jun 27, 2014
I have a Seagate 1 TB Backup Plus Drive which was working perfectly fine until I plugged it into a USB hub. It detected it while in the hub and I was able to get files off of it, but when I ejected it from the hub and put it back into the USB slot on the computer it was not detected by finder. It shows up in the disk utility and I clicked verify and repair and it says:
Verify and Repair volume “Seagate Backup Plus Drive”
Checking file system
Volume repair complete.
Updating boot support partitions for the volume as required.
Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
Is there any way to get this to work properly again? Or if not is there a way for me to recover my files on the external hard drive?
I have a Macbook PRO late 2011 running OS X Mavericks.
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Sep 15, 2009
My external drive has been used once. It was formatted, partitioned and files were saved on a mac. It showed up on a friends computer running Linux, and it showed up on my PC at home, but it hasn't been turned on since (about two weeks). This is where the problems begin. A few days ago I purchased a new enclosure for my HD (Nexstar 3.5). I took the HD out of it's old enclosure and put it in the new one (I needed the new enclosure for school purposes). I got to school today and plugged it in to the mac, but the drive didn't show up on the desktop. I tried to connect with Firewire 400, 800 and USB 2.0 but no luck with any of them (a USB key worked fine). Just to make sure it was working, I got home plugged it in to my PC and it showed up instantly.
From looking at other threads regarding this issue they all say I have to access the Utility menu. The only problem is since the mac I need to use is a school computer I can't access the Utility menu. It says I don't have authorization to use that menu, and won't allow me to go any further.
I don't know what to do from here. I can't reformat the drive because there is rather important info on there that hasn't been backed up yet. What can I do?
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May 6, 2012
My desktop have suddenly decided NOT to show files, folders and disks. I can se those files via Finder but not directly on the desktop. I have repaired permissions, verified the disk and ofcourse checked my Finder preferenses - but no go. The desktop shows what I want it to show if I switch user.
Info:iMac, Mac OS X (10.7.3), iMac early 2009
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Sep 3, 2014
Did a fresh Bootcamp install of Windows 7 on my MBA running 10.9.4, switched back and forth a few times and now the BOOTCAMP partition doesn't show up in the left pane in Finder. I hopped into Disk Utility to see what was going on and it was there, just not mounted, so I clicked mount, was told it couldn't be mounted, and it suggested I run first aid on it. I clicked Verify, nothing useful to me, then Repair, and got quite a lot of feedback that I do not understand, and then after that it was still unmountable.
I tried to copy everything it said into a pastebin because it was very long with lots of starting and stopping and counting percents inbetween, but it was over 500kb and that's the limit for free users on pastebin, so here's a trimmed version. [URL] .... I tried booting into Windows after that, and it jumped into System Repair. Apparently, according to Windows, my Boot Manager is missing or corrupt... and since I still can't access it from the Mac side of things, I thought I'd just wipe the partition in BootCamp Utility and start over.
Except instead, I get this error: "Your disk could not be restored to a single partition.An error occurred while restoring the disk to a single partition."
Disk Utility let me wipe it but I still can't mount it, either, again suggesting I run first aid on it (this does nothing). I can't boot into the Mac's Recovery mode either. It just jumps straight to Internet Recovery. When I hold option upon boot, all three partitions show up (Mac, Recovery, Windows), but when I click the recovery one it loads for a bit and then the laptop just instantly shuts off.... Have I corrupted my internal harddrive perchance?
Info:
MacBook Air (13-inch Mid 2012), Windows 7
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Nov 7, 2009
i just erased my external hard drive through disk utility my accident. I had VERY important files and the 1tb was full.
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Jun 16, 2012
on doing a disk utilities scan it came up with this - "Problems were encountered during repair of the partition map" why won't it let me repair this problem?
Info:
MacBook Pro, Mac OS X (10.7.4)
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Dec 19, 2007
My Maxtor 500 external hard drive has suddenly stopped appearing on my desktop. My other external drives appear. I've tried hooking the drive to my MacBook Pro with the same results. The drive however, seems 'active'. The light on the front of the drive does its usual flashing routine when plugged into a new machine. I've never had a crashed drive before. Does it sound like this is what has happened, or does anyone have a clue as to what I should do?
Information:
G5
Mac OS X (10.5.1)
MacBook Pro
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Apr 11, 2010
the burning disk is maxwell dvd+r
an error appearing when burning ''failed to calibrate the laser power level''
i have mbp (late 2008)
how to fix it ?
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Oct 17, 2010
I have an external hard drive that was used on a PC. I want to use it on a Mac. I went into disk utility and did an erase. (Extended Journaled and in security options changed it to zero out data). I can now use it on the Mac how ever it is telling me that there is 54.1 MB of used space. I want to have access to this. How do I do it?
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Aug 25, 2014
I wish to change partition scheme, sizes, in an external drive. All the partitions are MacOS extended (Journaled) and they map, according to the layout in Disk Utility, as follows: Partion 1, 2, 3,4 where 1 is at the top and 4, the bottom. I want to make partition 2 larger, so I decreased partition 1 by half. Now the layout is 1 a, 1b, 2,3,4., where 1b is now free space. Disk Utility will not allow me to increase the size of partition 2 by dragging the corner. Which of the following options (if any) will allow me to increase the size of partition 2, without erasing the data, using Disk Utility:Select partition 2 and manually writing a new value in the size box, equal to the present partition’s size plus the free space?If I delete partition 1 completely, will I then be able to increase the size of partition 2?If I delete partitions 1, 3, and 4, will I then be allowed to increase the size of partion 2?Is there another option?
(Actually, partition 3 is an eDrive, a data recovery utility created by TechTool Pro 7, so I don’t really know how it’s formatted.)
SeagateHD 1.5TB USB drive.
Info:
Time Capsule 802.11n (2nd Gen), OS X Mountain Lion (10.8.2), MacBook Pro, iBook Dual USB
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Sep 2, 2014
I've been running a Toshiba 1TB external drive on my Mac Pro tower and it's been working fine. But yesterday it wouldn't mount. I could see the drive in Disc Utility, but the partition wouldn't mount. I brought it into work where I'm running an iMac and it mounted just fine. Why would it stop working on one computer (where it was previously fine) yet work okay on another? And how do I get it working on the tower?
Info:
Mac Pro, iOS 7.1.2
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Jan 7, 2011
I have an external 750GB hard drive that I previously formatted as FAT 32 because I wanted to be able to plug it into Windows computers as well. I was not very thoughtful at the beginning and I just created one big 750GB partition. I currently have 450GB used and about 300GB free.
I would like to create a new partition in the free space without losing the data I have in the disk, and format the new partition as Mac OS Extended to use it for Time Machine backups. Presumably Disk Utility can do it, but when I go to the "Partition" tab it says "This partition cannot be modified" and the "+" sign below it is grayed.
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Apr 18, 2010
The hard drive is a 1TB Western Digital my book I bought it in January I think. I tried to format it to Mac OS Extended (Journaled) when I got it but for some reason every time I try to erase the part thats named disk3s2 or partition the main one it stops a little before half way through. I don't think its the hard drives fault so I called apple about it one day and they helped a little but it didn't work. Thanks in advance if you can help me. Also a few times I waited about seven hours for it while I was at school and when I came home it didn't move.
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Apr 28, 2010
I have a Lacie 1TB external drive. I'm trying to create another partition on it using Disk Utility so that I can use one of the partitions for Time Machine. When I go to add another partition, or even just resize the existing one, I get an error saying drive must be HPFS+ with Journaling enabled. It is. I've seen reference to this error in searches, but have not found a solution. Is there a fix for this, or another tool that I can use to re-partition my drive without wiping out existing partition? I have about 450GB worth of data on the drive that I might be able to store somewhere else temporarily, I would just prefer not to have to go through that....
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Aug 29, 2014
I've recently converted to the Mac-side:
I'm having difficulty with my external hard-drive, here's the info on that one:
Disk Utility won't allow me to mount the drive, I've tried using a number of softwares to read it (working under the assumption that it's an NTFS drive), including Tuxera and Paragon. I have too much stored on the hard drive to empty it back onto my old computer, and so I'm not able order to re-format it.
Info:
MacBook Air, OS X Mavericks (10.9.4)
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Oct 6, 2010
Whenever I try to burn an ISO to CD, it doesn't work, because Disk Utility requires me to insert a "Matshita DVD-R" and I don't have any of those. I only have DVD+R and CD-R. How do I burn it?
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Jan 29, 2010
I have a 1/3 full external drive that is currently formatted for MAC OS External.
I want to partition the drive in half and use the 2nd partition for Windows FAT32.
However, when I try to do this with Disk Utility it does not give me the FAT32 option.
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Dec 23, 2007
Will running the 'repair disk' disk utility on an external drive screw up any of the files on my external hard drive? I only want to run it because I can't transfer a file from my HD to the external...it's a 6 gig video file in quicktime format, and I'm getting 'error 1309', which I understand is related to file size on FAT32 format. I know it's a huge file, but I've moved others to the external that are over 20 gigs with no problems (iMovie projects, etc). Anything I can do to get this file moved to the external?
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Jun 10, 2012
I had downloaded some files to add to an external hard drive, the hard drive was assigned to a pc before adding these files so it wouldn't let me add files from my MacBook..
Had a look around online and made some changes (well thats what I thought) and I was able to transfer files form my MacBook onto the external hard drive.
What I then figured out was that there was nothing left on the hard drive except for the two file sI just transferred..
It turns out I deleted everyting without noticing.
The stpes I followed was to go to disk utility then select the hard drive and click erase (not knowing this would erase evrything).
So now I have two files on my hard drive and no idea how to recover the 'delted' files.
I tried using Disk Drill, which found the files but then it said I need to buy the full version to recover them.
I am wondering if there is any free methods to recover these files at all
Info:
MacBook Pro (13-inch Early 2011)
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Oct 28, 2007
I can burn CD-R and DVD+R but I am having a problem burning a cd that is DVD+R DL. Every-time I try to burn that kind of CD through either Toast or Disk Utility I get an error message that says "Unable to burn. The device failed to calibrate the laser power level for this media.". I know my SuperDrive is a DVD+R DL it shows it in the system information. Is it mabye the CD i bought? the one I have is Memorex Doublelayer DVD+R DL 8.5gb, 249min, 2.4x
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Jul 20, 2009
It all started last week when I tried burning an ISO to a blank Memorex DVD-R. When I inserted the DVD it would eject the CD over and over again no matter how many times I tried. The same thing would happen if I used a Memorex CD-R. Now these CD's worked in the past without any issues, and seem to work just fine on my other computers.
I decided to go out and buy a different brand of DVD-R's at Office Depot, thinking the laptop just wasn't really into these DVD's anymore. I ended up buying TDK DVD-R's. The computer seemed to like these more because it didn't eject them when I placed them into the drive.
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Aug 27, 2009
So I have an ISO file that I need to burn onto a dvd, and i bought some double-layer DVD+R's at the shop... And apparently it doesnt work. I mount the image, and then click on Burn.
A pop-up appears for like 2 seconds saying: Finishing Burn. The CD comes out, blank as ever...
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Nov 28, 2009
I was burning an ISO to a dvd in Disk Utility, and it gave me the message "Verification of the burn failed" So, I tried running the dvd, and I didn't get any error messages. Do you think the disk/iso/whatever is good to use?
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