Cannot resize my main partition, random left over space?

So as you can understand from the topic I can't resize my mac main partition. There is some grayed out area of the parition and when i try to resize it, it then jumps back to the original size with the grayed out area.

No, you are starting up using your Recovery partition, so that you can use Disk Utility from there without the limitations that happen when you are booted from the main HD. And in fact, the unrecoverable section is probably your Recovery Partition.

Similar Messages

Cannot resize Time Machine partition

Hello all,
I currently have a hard drive split into 2 partitions (both Mac OS Extended (Journaled)). One of the Time Machine partitions is far too big (for the backups it contains) and I want to reclaim some space as a regular data partition (for my windows PC). Unfortunately I can find no way to resize the existing partitions. There is no "corner to drag" in my disk utility. 617GB are free in the 697GB partition.

Time Machine likes to be the first partition, otherwise it will continually ask you where?
http://www.techrepublic.com/blog/apple-in-the-enterprise/how-to-resize-a-live-pa rtition-in-snow-leopard-and-lion/#.
http://osxdaily.com/2009/11/20/resize-partitions-in-mac-os-x-with-disk-utility/

Left over spaces preferences in Mission Control

I had certain programs set up to go to particular spaces before I upgraded to Lion. Now, the programs go to the desktop number that corresponds to the space it used to go to. The functionality of having things assigned isn't needed (or useful either) in the new mission control setup, so I would like to cancel the assignments, but I can't change the preferences any more.
I am sure that there is a terminal command that would fix this, but I wouldn't even know where to begin to look for it; other than here of course.

Right click the programs icon in the dock. Select Options > Assign to: None
Regards,
Captfred

Cannot resize main partition

I installed Bootcamp and obviously Bootcamp Assistant reduced my main partition so that it could create a new one for me to install Windows on. I finished my project and decided I wanted the space back. Something must have gone wrong when the Bootcamp Assistant removed Bootcamp, because I am left with a 40Gb empty space on my HD.
I can't get Disk Utility to resize my main partition into the empty space. I have looked at many "how tos" and they all show a resize handle at the bottom-right of the partition that can be dragged to expand the partition into the empty space. I don't see that.
I tried running Disk Utility from the recovery mode Command-R on startup, but I have the same issue there as well.
Any help appreciated. I would prefer not to have to wipe everything and start again.

Dr Mac, thanks:
eds-macbook-pro:~ ed$ sudo gpt -r -vv show disk0
gpt show: disk0: mediasize=251000193024; sectorsize=512; blocks=490234752
gpt show: disk0: PMBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 490234751
      start       size index contents
          0          1         PMBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640 410430536      2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
410840176    1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
412109712   78125007
490234719         32         Sec GPT table
490234751          1         Sec GPT header
eds-macbook-pro:~ ed$ diskutil resizevolume /dev/disk0s2 limits
Volume format does not support resizing

Cannot resize system partition due to recovery partition

Hello.
I have a 500GB HD (momentus XT) that replaced my default 320GB HD.
i cannot resize the system partition due to the recovery partition. System keeps on telling me that "map is too small".
Tried diskutil under osx, under lion bootable recovery usb stick, under diskutil through console.
Here is what diskutil tells me.
~ > diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            319.2 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
~ > diskutil resizeVolume /dev/disk0s2 400G
Started partitioning on disk0s2 Macintosh HD
Verifying the disk
Checking file system
Performing live verification
Checking Journaled HFS Plus volume
Checking extents overflow file
Checking catalog file
Checking multi-linked files
Checking extended attributes file
Checking volume bitmap
Checking volume information
The volume Macintosh HD appears to be OK
Resizing
Error: -5341: MediaKit reports partition (map) too small
I want to resize the partition to use the remaining new space i have, of course, and create a bootcamp part.
I am wondering if i can kill the recovery partition without destroying my lion. As i have the recovery transfered successfully to usb stick using the apple utility, i am able to use it anytime.
But... just wondering if that would crash my OS or not.
Or, if anyone sees a way to move the recovery partition to end of the HD so that i can enlarge successfully...

Thanks to you both, luckily there's only 600GB on that drive at the moment.
I was wondering, though, why won't it let me make it bigger?
I already had a 1TB partition in the space below it. The screenshot shows me having already deleted it - but still no option to resize the other (larger) 2TB one.
If there is a reason why I can't resize now, then I can take that advice and try and make sure it doesn't happen when I reformat it again.
I would understand if the partition were MBR, but it's not, it's a GUID Partition Table (bottom right), so I'm confused - what is it's problem? ;-)

Is it possible to resize a OSX partition without affecting a Bootcamp partition?

I have a new SSD drive but its only 120GB. I want to clone the entire drivevbut I cannot do this since my original SSD was 128GB. My OSX partition is 60GB and my Bootcamp partition takes up the rest. I know you cannot resize the Bootcamp partition but could I resize the OSX partition down to 50GB without affecting Bootcamp from booting up? Resizing the OSX partition, I should be able to clone my old drive to the new drive.

It doesn't matter how big a physical drive is. With a Mac partition, it also doesn't matter what the size of the source and target partitions are. The only thing that matters is if the amount of live data you're cloning will fit on the target drive.
Your current partition is 60GB. I would imagine it's not filled to the last byte of space. So as an example, let's say there's 40GB of data on it.
The target drive only needs to be a bit larger than that. Though preferably with a fair amount of free space so if you boot to it, the OS isn't running on a drive with virtually no operating room. So the target partition should be about 50GB.
Unlike Windows, Mac partitions do not dynamically change size to match the source.

Cannot resize partition...

Before mods delete/close/move my post 'cause I'm sure there exist hundred of related problems to this let me explain.
I study Engineering in Computational Systems, for my Digital Design class I need some software that only exist for Windows (I've been searching the web looking for alternatives for Mac without success)... So I decided I'd install BootCamp and Windows 7, but I got the **** "cannot resize partition" error...
So here's the deal... I CAN'T make a backup, my external hard drive is damaged, I've been searching and I found that this problem is 'cause BootCamp can't move big files or stuff like that so to fix the problem I have to defrag the hard disk and here comes another problem, I can't afford iDefrag neither...
Any help for defrag or resize my Mac OS X partition?

Usually when I see "Cannot resize..." it is because the Windows partition was too small, or they need more room for OS X files. Not because they got the error message from Boot Camp Assistant (which tells you to reformat and restore after you have a backup).
Step #1 is (always) backup before making changes.
Real easy... buy an external, you will need backups for Mac OS and probably Windows. you will want to be able to run OS X off external too at some point.
It isn't because there are big files, it is that they can't be moved.
The free space has to be contiguous, not fragmented, also, in order to create a slice for Windows.
I assume it won't work with a VM running under/inside OS X so you need to run Windows natively.
Some people have bought iDefrag ($49?) and results are anywhere from good to mixed to didn't work.
You are right, the question has been asked... about 999 times in the last two years.

Cannot resize partitions on yosemite !!

cannot resize partitions on yosemite !!

Do they have data on them? Are these partitions you could resize before? Is this a new machine? Is it formatted GPT or something else? Are you using boot camp?
It would be helpful, also, if you would phrase your question in the form of a question

Cannot resize "Macintosh HD" after deleting second partition: OS 10.9.4

I have partitioned my Macbook Pro in order to see if I could install Snow Leopard on one of the partitions, the main HD running Mavericks.
Sadly, my late 2013 Mackbook Pro is not compatible with Snow Leopard (or at least I was unable to determine how to prepare the partition in order that the snow leopard install disc would run successfully). At any rate, after this failed experiment, I deleted the partition I created for snow lion using disc utilities. The problem I am having now is that I am unable to resize the single "partition" to the full size of the drive. I read this thread, Unable to delete second partition, and it suggests booting the mac in recovery mode in order to restore to a backed up version of the HD, however this is suggested as a work around for not being able to delete a partition, which is not my case. Again, my problem is simply that once I have deleted the second partition, I am unable to have the single partition assume the full space of the drive. Any suggestions short of a complete re-install?

Here's the disc utilities snapshot after I deleted the partition that took up the space in the lower part of the quadrant. I'd like the MacIntosh HD to subsume the space leftover by the deleted partition.
a

Cannot resize partitions

Hi.
I have an external usb hard drive. And it has been partitioned previously into 2 partitions. Approx. 500 GB each.
I open DU, choose my HD and go to Partition tab. Then it says:"To resize the volumes on the selected disk, drag the dividers between them and click Apply".
For some reason there is no divider between my partitions.
I have no way to copy all my info somewhere else. When I click and drag that little corners it doesn't work out.
All I want to do is to increase the size of the TM backups up to 800GB and decrease the size of the Server down to 200GB.
Any suggestions ?

I think you misunderstood the instructions. Grab the sizing gadget in the lower right corner of the Server volume and slide upwards until you have reduced its size by the amount you want to add to the TM volume. Click on the Apply button and wait until the process finishes. Then select the TM volume by clicking anywhere inside its rectangle and click on the Delete [-] button to remove it. Then click on the Add[+] button to add a new partition in the free space. Click on the Apply button and wait until the process finishes. You should now have a resized volume for your TM backup. Be aware that this process will remove your existing backup, so you will need to reconfigure TM and start a whole new backup.

Boot choice disappear after resizing main partition Mac

I wanted to resize the partition mac for more space later on Windows partition. But when the operation ended and I rebooted, I had no choice boot between windows and mac.
Now it boot, without asking my opinion, directly on the Mac partition.
How to fix this problem, so I can restart my Windows partition.
Thank you in advance for any help or advice.

Hi and welcome to Discussions,
use Diks Utility in OSx to check if you maybe inadvertently made a partition between your OSx partition and the Windows partition while shrinking your OSX partition.
If so, then the 'partition numbering' has been changed and the Windows partition is not found.
For XP have a look at this thread http://discussions.apple.com/message.jspa?messageID=11783594#11783594 for a solution.
For Vista or Windows 7 EasyBCD http://neosmart.net/dl.php?id=1 would be my tool of choice.
Hope it helps
Stefan

I cannot resize my partition

So i'm trying to resize my partition, my Macs memory (500gb) is partitioned in half and it shows 250gb for one partition and 250gb for the other which is free
space... it wont let me drag to resize and I don't know what to do

Back up your data, create a new partition in the free space, restore the contents of Yoseimite to it, select it in the Startup Disk pane of System Preferences, delete the partition on the bottom, and resize the one on the top to the drive's capacity.
(121309)

Is it possible to resize a mac partition from windows?

Here's what's going on. I originally wanted to use Disk Utility to do this, which is clearly the easy way to do things, but my computer is so slow that Disk Utility immediately becomes unresponsive upon wanting to resize -any- partition. The windows side works fine though, it isn't slow as crap. Is there a way to resize the mac partition from windows (HFS+)? Any possible way? Even crazy ones? I'm open to suggestions.
Oh yeah, and in case you want to know...my Mac Mini just randomly started getting really, really slow, so slow in fact, that now my old iMac from 1999 is faster (it doesn't even have ANY RAM!). I tried resetting the PRAM/NVRAM, multiple times, booting into safe mode takes forever, but I left it for awhile and it finished. Almost worked, the finder showed up quicker than usual, but then it reverted back to it's slow self again once I opened Disk Utility. I tried booting into single user mode and typing /sbin/fsck -fy, and it's so slow, that it couldn't even do that! It got stuck at checking libraries or something, for hours, and i could type things in still, but it wouldn't recognize any commands (ie fsk - fy). I also cannot replace the RAM because it is an older mac mini and those things are hard as f*** to repair, trust me, i've tried. The weirdest part of all of this has to be that this is the computer that we DON'T download many apps onto, so it most likely isn't bloatware, adware, a virus or something else. We download most stuff to our MacBook, and go to the sketchy websites on it as well (it really should be the other way around, the mac mini would be around 3x less expensive to replace, it's just that it's the family computer). And that's always slow, but this surpassed it (btw, the laptop is a year or so older). I do not have the installation disk.
Can someone help? Mainly about the first thing...please. The second thing is hopeless, I will need to get a new computer pretty soon, and these macs don't last as long as they used to I guess, we'd most likely get a quality Windows PC to replace it, this has been a disappointment. I'm just trying to get a little more life out of it with Linux, maybe a year or two. That's what i've done with my old iMac. Runs GREAT. Especially for a 13 year old computer. The thing is, my folks don't want me to completely eliminate the mac partition even though it's virtually unusuable.

I'm not really understanding what the end goal was. But in case anyone else comes across the thread, neither the built-in Windows volume resizing utility nor any 3rd party Windows resizing utility should be used to resize either the Windows partition or the Mac OS partition. Invariably they all manipulate the NTFS volume in such a way that the secondary GPT is corrupt, the primary GPT is rendered invalid, and only correctly alter the MBR. It's a recipe for data loss.
Conversely, while Disk Utility can resize a Mac OS volume, it cannot resize an NTFS volume. With Lion and Mountain Lion, upon using Boot Camp Assistant there are already four partitions: EFI System, Mac OS, Recovery HD, and Windows. There is no more room for a fifth partition in the MBR partition scheme, and if you try to add one, Disk Utility will apparently let you and render Windows unbootable (because Disk Utility adds the fifth partition to the GPT, but can't add it to the MBR, and instead removes the hybrid MBR needed for Windows support and replaces it with a PMBR.)
So in effect this is not to be done except with 3rd party utilities.

I have an old G3 I would like to donate, but I have forgotten my password and cannot erase the two partitions on my disk.

I have an old G3 I would like to donate, but I have forgotten my admin password and cannot erase the two partitions on my disk. I have the CD for 10.3.9 that one partition is running but when I boot from the CD, it wants to set up by connecting to the internet and I cannot connect on the old machine.
I've tried several schemes by logging in with command s and carefully typing directions, but when I reboot it just gives me the old admin.
It keeps trying to connect to network which I do not want to do.
I guess no one really wants an old G3 but I used it for years and I hate to destroy it.

Sure you can.
Drive Partition and Format
1. Boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
No password is required for this unless you set up a firmware password.

"Cannot find the main Class. Program will exit."

Hi, I created a program, and I am trying to distribute it to other people in my office. I tried using both NetBeans 6.8/6.9 and eclipse. I exported to a single jar file. When I run this single .jar file, it runs perfectly. I sent it to one of my coworkers, and the message "Cannot find the main Class. Program will exit." popped up. I then had IT update his Java to 6.20 and it worked. The problem is that this program must be distributed to over 100 people, and I cannot have them each update their Java individually, nor will IT update everyone's on their own. They all have Java 4.XX I believe. Is there any way around this error that only happens on older versions of java? I have checked my manifest file and what not, as I said it runs on computers with Java 6.

AndrewThompson64 wrote:
Do you mean Java 1.4? It is best to be sure, so point some of the target machines at this page(1) to check.Yes, Sorry I meant 1.4.XX, I think they have 1.4.2_19.
>
>
a) Ensure the code does not use functionality introduced in later versions, e.g. assertions, generics, for-each loops.. Using the [cross-compilation options of javac|http://java.sun.com/javase/6/docs/technotes/tools/windows/javac.html#crosscomp-options] will warn of those.
b) Ensure the code does not use any classes, attributes or methods that were not available in the earlier version, then use the cross-compilation options of javac when compiling. Actually the second will alert of the first, so long as the -bootclasspath parameter is used with an appropriate rt.jar.I believe that everything is ok, unless some of the swing functions cannot be used in 1.4. Besides the swing functions (which I am not sure about) everything should be able to be used in 1.4
Thank You

Cannot resize my main partition, random left over space?

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