OS X :: Disk Utility Not Working / Boot Disk Not Working?
Nov 26, 2008
I have an 8 month old MB, 2.4 Ghz, 4GB Ram, 160 GB HD, running 10.5.5. I normally do the updated from Apple when the updates come out.
Anyway, I was trying to reformat/erase an external hd; I didn't see the Disk Utility icon on my Dock. I had used Disk Utility before (last time was maybe a month or two ago).
Go into applications, see something called disk utility, but it has a different logo (a piece of paper with a pencil, brush and ruler in the shape of an A). I click on it, it jumps once and does nothing. I figure it needs to be reinstalled, but the DVD that came with the computer says I can't install OS X on this computer.
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Jun 29, 2014
I have a MacBook Pro running Mavericks.
Recently I noticed that if I run Check Disk in Disk Utility, all the process works correctly but at the end it doesn't tell me that everything is correct (in green).
On the contrary, if I run it in recovery mode, (reboot w cmd-r), it works correctly to the end with the correct green result at the end.
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Mar 23, 2009
i have encountered an issue on a system with Tiger 10.4.11 where the disk utility and several other utility applications will not launch... Also new applications will not install i believe tide to the utilities issues. Has anyone encountered this issue before?
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Oct 11, 2010
I bought a WD My Passport 071A Media 1TB External Hard drive yesterday and was hoping to use it for my Mac and PC laptop. So I plugged it into my mac and it asked me if I wanted to use it for Time Machine and I said yes. It reformatted it and then I realised i wanted to partition it so I went to Disk Utility and split it into two partitions, one 50GB for Time Machine and another 950GB for my other storage, and made that FAT32 format. So I copied a song onto that partition and noticed it was copying really slow, so I copied the same song to the 50GB partition and my other 1TB non-portable hard drive which is also FAT32 and it was normal speed. So I thought I should try removing the 50GB partition and halfway through my computer froze and I had to reset it. Now my hard drive won't work in Mac or Windows and when I open Disk Utility, I see it there but when I click on partition, it freezes and I have to Force Quit the application.
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Apr 23, 2010
I want to reinstall OSX but finder does not work and disk utiliy does not work and the computer does not see the dvd drive, when I boot and hold c it does not see the dvd and won't boot from it, is there any other way to do an install., it's the new imac 27" flat screen with core i5, 4GB ram, boot ROM version IM111.034.B00, OSX 10.6.3.
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May 26, 2009
I'm currently in the process of trying to install Win7 on my Macbook Pro (purchased July '07) using an ISO burned to a DVD with Disk Utility. Unfortunately, the DVD isn't bootable, and while the symptoms match what's in this blog post, the author's solution involved using a Windows-only program.
I'd like to know if it's possible to re-burn the ISO without the version number in the filenames as in the original solution, but with Disk Utility or something else that a Mac can use.
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Aug 22, 2010
Looking at current SSD's and they do seem to offer exceptional performance. Have a little spare budget after the 6-core purchase and was wondering..
Add a (modest)
SSD as a boot and app disk?
SSD as a working/scratch disk?
Now - we all would like the biggest, fastest etc etc. But taking another view,ie in 6 months time there are going to be cheaper, faster,bigger, better value for money. So - for design CS4/5, 3D...looking for drive big enough to make worthwhile testing the water. Still a bewildering amount of options out there. A starting point seems to be 60G OCZ vertex 2 ?
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Jan 12, 2010
First some background info. I recently purchased a 1TB hard drive for my 13" MBP, and I am about to do a clean install of OSX 10.6 and Win7 64bit on separate partitions.
And I want to setup the partitions before I install using Disk Utility. The reason for this is because I'm under the assumption that when creating a NTFS partition its better for the disk to be blank so it can put the MFT(Master file table) and MFT Mirror wherever it wants instead of some random spot on the disk (that way disk writes will be faster). The MFT thing was true when converting a FAT32 disk to NTFS. Nativity formatted NTFS disks were always faster then ones converted from FAT32, because the MFT was spread out instead of at the start of the disk.
I'm worried that installing OSX and then using the bootcamp utility will cause the MFT on my NTFS partition to end up in a un-optimal place and disk Reads/Writes will be slower.
Ok, so here's my questions.
1.) Should I be using a GUID Partition Table or Master Boot Record(Remember OSX 10.6 and Win7)?
2.) Should I use Disk Utility to Create a the OSX partition and then leave the second partition as Free Space? / Or should I use a third party utility and make the OSX partition and the NTFS partition at the same time?
3.) If I do create the partitions Manualy, will bootcamp still work correctly?
4.) Should I Use Journaled or Case-Sensitive Journaled on my OSX partition?
I know all of the questions were stupid, but there isn't any info on the web about it.
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Jun 11, 2012
I have a MacBook 4,1 with Intel Core 2 Duo processor 4GB Ram. It is taking over 10 minutes to boot up past the gray apple screen when I turn it on. First I cleared the PRam (?) then I checked the disk using Disk Utility Verify, and it said the disk needed repairs. So I ran the disk repair and it said it was unable to fix the errors on the HD.
I did a little research and tried booting into the Single User mode, then running /sbin/fsck -fy. It said that it found errors but could not fix them. I ran it two more times as suggested and got the same result each time. I then tried rebooting and now instead of taking 10 minutes to boot up, it takes about 5 minutes on the gray apple screen and then just turns off. I started in Verbose mode to try to troubleshoot the error and it appears the last thing to come across the screen before power down is a message "Apple Yukon 2: RxRingSize <= 1024....etc".
I decided next I would run the Apple Hardware Tester. The test came back with an error code "4SNS/1/40000001:IG0C-0.265". I am very good at searching the web but I could not find any errors that had the IG0C or IGOC or any combination at the end, but plenty of 4SNS/1/40000000(1) errors with different endings. From what I can tell people are saying anything with 4SNS/1/4000000 is a logic board failure, but this computer was literally just booting this morning until I did the /sbin/fsck -fy.
Info:
MacBook, Mac OS X (10.5.6)
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Aug 13, 2010
I have a G3 iBook and just the other day the display stopped working. There were no signs of the display going bad, it's just went. Am I able to boot the iBook via Target Disk Mode on my PowerBook and run the iBook Hardware Test CD on it? Also, can I reboot my PowerBook and choose the iBook as the startup volume?
I know how to do Target Disk Mode but the latter I'm not sure about.
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Jul 6, 2010
I need to boot into Disk Utility to repair my OS X partition but don't have my Snow Leopard install disc with me. I tried using a Leopard disc from my previous computer but got a gray screen when I tried it. Is there a way to create a new CD that will allow me to access Disk Utility from startup?
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Sep 28, 2010
Well this is an ongoing saga with my iMac. Looks like my third hard drive has gone south after 4 years. All Seagate Barracuda drives. But now I can not even boot from the the snow leopard dvd to at least run the disk utility. I tried the following: holding down 'c' and nothing, hold down options and I get the mouse cursor but nothing else.
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Feb 2, 2009
Yesterday I decided to Install Windows Xp on my Mac. I tried to partition it but BootCamp said, "Verifying failed. BootCamp can't partition disk." So I started reading about this problem on the Internet and I found out that I have to use the Mac OS X Installation Disk and use the Disk Utility to "Repair" the disk. I started Disk Utility and clicked "Repair". Many files were missing so it tried to repair it. So now when I start the Apple-logo and the loading-circle is "frozen", so it just loads and loads and loads and loads, and nothing happens. I decided to format the disk from Disk Utility but I can't format it! I can't do nothing! So now I cant start my Mac! If it is possible to take a backup or something before I format it, or keep the files it would be lovely!
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May 1, 2009
I recently got a new hard drive and I want to install Mac OS X 10.5 and Windows XP on it.
Is it possible to format one partition with the Mac GUID for OS X and the other partition as a Master Record for Windows XP?
Or does Mac OS X/Windows XP dual-booting has to be done through the bootcamp?
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Mar 21, 2009
I made a partition in my Tiger Macbook to install WIN. Now i want to delete the partition. Tried to do that with Boot Camp, and the application says it' done, but the partition is still there. Tried with Disk Utility, and I am not able to click the "Remove" button (as on the image).
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Jul 18, 2010
I deleted my Boot Camp partition in Disk Utility (as usual, Windows wasn't working and wouldn't fix). I resized my Macintosh HD partition to cover the whole drive and repartitioned. Now Disk Utility says that the partition's capacity is 160 GB and that I've used 40 GB and that 70 GB is available. My Boot Camp partition was 50 GB. I've read that to fix it I have to boot from my install DVD, go to Disk Utility, set the number of partitions to one, and delete the entire drive so that there's zero data left. Then I'd reinstall OS X and restore from a Time Machine backup. As of now, I have no external hard drive.
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Feb 19, 2012
I used Carbon Copy Cloner to back up to an external hd. Do I now erase the hd reistall the mac os, then pull my files and apps fom the ext hd?
Info:
imac 24", Mac OS X (10.5.6)
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Jun 2, 2014
Problem: MBP frozen on boot up screen with Apple logo and turning gear (which freezes after a while aswell)
Solutions attempted: disk repair via custom recovery- disk utility, PRAM
Device: MacBook Pro 15" (early 2010) running 10.9
Additional info-
Never had any issue with the device and this seems to have happened all of a sudden. Installed an SSD a few months ago, and just realised the ssd did not have a recovery partition. However I connected my older hardrive via USB to access recovery which seemed to work fine.
NOTE: for the past few weeks, every now and then I was unable to power the device off and whenever this occurred, there seemed to be a few bugs (ie unable to empty thrash-error 50 and enable to increase/decrease volume/screen brightness). However, holding the power button and restarting it seemed to have fixed it.
Had the same issue but this time around MBP failed to boot up.
Info:
MacBook Pro, OS X Mavericks (10.9.3)
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Oct 7, 2010
After I erase the hard disk it shows 74.5gb free, almost. It says there is 42.3mb of space being used by 2 files which I understand are used for read write or partitioning or whatever.
When I then leave disk utility and go to the actual installer, the destination disk (untitled - 74.5gb) shows only 73.9gb free space. What is taking up an additional 500mb of space on the hard drive?
Apple support told me that somehow the disk has been altered and I lost space on the disk or I am now using a seperate partition that isn't showing up. Disk utility shows only one partition with 74.5gb free space. He told me I can find information about how to 'merge' the disk on the apple support section under troubleshooting articles for disk utility. I have been unable to locate this information.
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Nov 25, 2009
I am trying to repair my disk so I can install bootcamp, but when I reboot my machine and run disk utility and choose repair disk, it hangs. Does anyone have any ideas ?
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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 24, 2014
I get this question mark along with a folder when starting up. I tried holding down the option key when turning on the power and then I get an internet recovery along with a globe. I click on the arrow below it and it takes maybe 15 minutes to start up. Then i get this disk utilities screen. I'm now unable to do anything. When going into disk utility, disk 0 shows with Mac OS X base system underneath it. All the clickable buttons are faded out. Is there something wrong with the hardrive? and where could i get this fixed? There isn't a warranty on it.
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Jan 2, 2010
Running Diks Util on my iMac 10.6.2. i am given this warning.
=========
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.
Is it something I should heed and what to do in that case?
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Oct 9, 2010
I had windows vista installed but suddenly the audio decided to become faulty, after spending a day trying to fix it i realized I have a windows 7 install disc so i might as well just replace vista with windows 7. I didnt take care of vista or ever register it so it became quite a task to upgrade so i just deleted the partition and went to create a new one and just do a full install of windows 7.
I made the partition but the wrong format, so i removed it through boot camp assistant and created another, except now it keeps giving me the "back up the disk and use disk utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using boot camp assistant again" Now, I'd love to do this, except I have no idea what I'm doing and WHY this error has occured. After becoming frustrated I switched from my imac to my macbook pro and received the same error when trying to create a partition. So any help on exactly what I need to do would be a HUGE help. I only use windows for music production (I know, seems backwards, but I use Sony Acid and FL Studio so I'm stuck with Windows)
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Feb 28, 2009
I'm trying to repair my hard drive. I restarted from the OS X Mac Mini install CD (holding down the letter C when I heard the chime), opened Disk Utility from the Utilities folder, selected my hard drive image, but the "verify disk" and "repair disk" options are grayed out. I'm at a loss as to how to proceed.
Information:
Mac Mini
Mac OS X (10.5.8)
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Jan 9, 2010
I have 43GB available on a 120GB drive on my MacBook base model and I'm trying to partition via BootCamp.I'm trying to allocate 32GB to the Windows partition but I keep getting the following error message:Back up the disk and use Disk Utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again.Now I've backed up my disk and launched disk utility, and try to follow above directions here but the Mac OS Extended (Journaled) area is grayed out and when I click apply after highlighting the MacBook are (in blue), it errors out and says the disk is out of space.
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Aug 3, 2010
One of my drives is showing issues that Disk Utility isn't catching or can't find. I've heard about Diskwarrior, iDefrag, Drive Genius, etc... but which one is the most comprehensive, is there a "best of breed" disk app out there or one that does more than the others?
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May 14, 2012
Running Disk Utility's Repair Disk function from DVD, how long should this take to complete with a 1 TB drive? It's been nearly 24 hours so far. I booted the computer from the DVD, and after verifying the disk was told the disk needed repair.
Info:
iMac G5, Mac OS X (10.4.3)
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May 15, 2012
How do I launch disk utility from the Snow Leo install disk?
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Jun 12, 2012
I am having problems with my Mac running slow. I had a friend guide me to run a "repair disk permission".I did that but I am not sure if I am to click clear history.Also should I do anything else to help my Mac run better?
Info:
iMac, Mac OS X (10.6.8)
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