Changing partition size of boot disk

Hi, i have an imac 5.1, i use an external drive to boot from which has 2 partitions, the one i boot from and the other part has files and stuff. i want to make the boot disk space bigger and the other smaller, how would i do this? thanks.

The idea of seperating the data from the system is a poor reason to partition the system drive.
Backup the data.
Reformat to a single partition and restore the data.
This will allow OS X to handle disk space for you instead of you having to do it.
Allan

Similar Messages

  • Can I change partition size of external HD without losing Data

    I have an external HD that I use one partition for backup and use another partition for Time Machine. I need to change the sizes, need more on my backup. Can I change partition size of external HD without losing Data? I just changed from a Powermac G4 using Leopard to a Macbook Pro with Lion, so I am also thinkin in getting everything set up, format the Time Machine with the old stuff and make a new Time Machine.

    The Disk Utility can't change the starting point of a partition without erasing it and the data on it.
    (72024)

  • Changing partition size and migrating to Leopard

    My iMac currently runs OS 10.9 and has boot camp installed, but I chose a Windows partition size that was too small (only a few GB, enough to install Windows XP). I am now want to increase the size of the Windows partition and to install Leopard. What is the best order for me to change the partition size and install the new system? If the disk needs to be wiped clean to do this, what is the best way to back up the existing data and then to reinstall it. Would I use migration assistant?

    If your beta Boot Camp Assistant hasn't expired, you COULD do this before you upgrade to Leopard. If it has, you can play games with the date, or you can do this after you're on Leopard.
    Either way, if your partition is FAT32 you can back it up using Disk Utility, according to other posts (see especially backup/clone discussions in the beta discussion forum); if it's NTFS, Winclone is probably the way to go. If it's a real small partition, though, you might just start over, or back up only what's "yours".
    On either the beta or Leopard, you'd want to back up or clone the current Boot Camp partition, remove it using BCA, create the new larger partition using BCA, and then restore the contents.
    None of this requires wiping the MAC OS disk, it DOES essentially wipe out the WINDOWS disk. I don't think Migration Assistant helps here, but certainly haven't tried that.
    Doug

  • Changing Partition Size without Deleting (bootcamp)/ Vista Question

    Hi, I'm currently running windows xp and OSX together with bootcamp on my black macbook (2 gigs of ram).
    I want to install Vista but I don't have anymore space on the Windows XP partition (just 4.42 gigs left). Can I partition my drives again where I get more room for my XP drive without deleting or messing up any of the information?
    Also , can I even use vista ultimate upgrade on my macbook?

    Hi,
    I believe boot camp is not supporting upgrade version of windows OS.
    Run you boot camp assistant to changed the partition size, but I think it will delete all of the XP that already installed there, but you don't need that again if you want to install Vista in that partition right?
    do visit boot camp forum for more answer from their experienced user.
    Good Luck

  • Change partition sizes after windows has been installed

    After I have installed windows onto my mac and have created the partitions, can and how do I change the size (in terms of memory) of the partitions without reinstalling all information?

    Hi and welcome to Discussions,
    you can use WinClone for this http://www.twocanoes.com/winclone/ and in here http://www.twocanoes.com/forums/viewtopic.php?t=515 you find a how-to.
    (Topic: My current Windows partition is the wrong size, and I want to make it larger. How do I do this?)
    Other people have used CampTune http://www.paragon-software.com/home/camptune/ successfully.
    Prior to doing this you should make/have a backup of your OSX and Windows files for safety.
    Regards
    Stefan

  • How can I partition, clone the boot disk, no cd?

    How am I going to partition my boot disk? I only have the OS that came on the hard drive, no cd.
    Tried start up c key on tiger 10.4 but it did not start from that cd where I thought perhaps I could administer this partitioning.
    And further, how can I clone once done, no cd.

    Let me see if I have this straight:
    You want to partition your boot disk. That's it right?
    All you need to do is clone your boot drive to another partition, disk, external, etc. You can use either superduper! (recommended), carbon copy cloner, or even just use osx disk utility.
    http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html
    http://www.macupdate.com/info.php/id/7032/carbon-copy-cloner
    Once you clone your boot drive, make sure it boots up first. Then if everything is good, re-partition the boot disk (erase) into however many partitions you need in Disk utility.
    Then boot up from your clone you just made, open for example superduper, and clone back to your new partitioned drive. Bootup from the new partition drive, and you are set.
    You don't need the CD to partition or even clone using DU.

  • Changing partition size

    Is there a way, actually a reliable way, to change the sizes of the partitions on my internal hard drive without reformatting? I am using OS X 10.5.6 with an Intel Core 2 Duo iMac.

    OK. I tried that. My problem is that I have three partitons. Partition One has OS X and Apple applications. Partition Two has my Users folder. Partition Three has non Apple applications. I made the middle one smaller thinking that I could increase the size of the third. Well apparently you can't do that (the third partiton wasn't able to be made larger), so I put the middle one back to the way it was.
    The bottom line is that I bought a new external HD and I moved my User folder to that drive, leaving me with an 80 GB windfall on my internal drive. Now I'm thinking of just leaving things the way they are, but moving my applications to the now larger partition (where my Users folder was). Would that be a problem as far as running the applications (these are all non Apple apps)? Moving all these apps is a lot easier that having to reinstall them.

  • Changing partition size without reformatting drive?

    I heard a rumor that in Leopard you can change the size, name, or other details of a partitioned HDD without having to erase and reformat it.
    Is this correct? If so, that would be a huge advantage for me, as I often don't predict how much drive space I'll need to use.

    Tell me if I'm wrong, though, but it seems that DU can only shrink. So, if you have 2 partitions, after you shrink one, you can't increase the size of the other. I hope I am wrong here. Please let me know if your experience is different. I think we'd all like to know how it goes, regardless.
    That said, VolumeWorks can do as you require. DO NOT do this without a backup of everything.

  • Partition Size difference between Disk Utility and Finder

    I installed a new hard drive in my MacBook Pro (2.33ghz late 2006). The new drive is 320gb.
    In Disk Utility it shows up correctly as a single partition (297.65GB). However, when I hit command+I in finder on the disk it shows its size as 176.88GB - a 120GB difference.
    Anyone any idea what the problem could be?
    Thanks
    Shay
    PS I used to have a bootcamp partition on the drive but have removed it, maybe this has something to do with it.

    In DU is it showing the size of the DRIVE or the partition on the drive?
    I'd clone the partition you have to an external and then repartition and reformat that drive to get it all back to one partition. How big was the boot camp partition?

  • Cannot change partition size on firewire external drive

    My external firewire drive has three partitions, one of which is used for Time Machine and is out of space; the third one is empty. When I use Disk Utility to try to increase the size of the second partition without erasing its contents, I get the message: "Partition failed with the error: filesystem resize support required, such as HFS+ with journaling enabled".
    Can someone please advise me on how to proceed.

    How have you formatted your drive?
    My drive is formatted as Mac OS X Extended (Journaled) and I have not trouble resizing my partitions with disk utility. I remember reading somewhere that certain formats do not support on-the-fly resizing. If you are using one of those formats (which I would guess based on your error message), you may need to re-format your drive. This would mean erasing everything (so make sure you back up your drive first). If you do have it formatted in the same way as me, I am not sure why you are getting the error.

  • Changing partition sizes

    I have two partitions on my 320 GB hard drive, and want to make one smaller and one bigger. When I try to resize them all I can do is make them smaller. When I make one smaller, it displays a bluish section between the partitions, which I assume is "nothing," but then I can't make the other partition any bigger. Is there a way I can do this? I don't want to erase the whole thing and redo the partitions.

    I have tried, and it doesn't let the 2nd (or lower) partition inherit the space that was used previously by the partition above.
    Seems like a natural enough idea, but of course the safest is to backup and restore.
    Also, if you use BootCamp, don't, and resizing or creating partitions in OS X or Windows can have side-effects, like Windows OS partition no longer showing.
    Partitions - or their use - always change over time, which is one of their downsides.
    Apple Disk Utility Restore or other programs make the backup / reformat / restore easy and painless. I'd recommend checking into SuperDuper.

  • Satellite A350: How to change partitions size on HDD?

    Hi,
    I have a Satalite A350 with a 250G Harddrive, but for some reason it has been partitioned with 114g for C drive and a huge 114g for E drive which is just the recovery drive. I'm now down to 20g on the C but still have an untouched 100g on the E.
    I assume that my computer has been incorrectly partitioned, and I know I can shrink the E but will this increase the C?
    Cheers
    pixxyco

    Hi
    As far as I know you can shrink the partitions in Disk management (Vista and Win 7).
    But if you shrink the E partition then the free space would be available after the E partition and you will not be able to add this free space to the C partition which is placed behind the E partition.
    But maybe a 3rd party partitions tool could help you
    There is a nice free tool called Gparted.
    http://en.wikipedia.org/wiki/GParted
    Maybe you could test this!

  • TM backups not appearing after partition size changeo

    Hello there,
    So some weird stuff's been happening to my 2013 27" iMac lately, running Yosemite. First of all, my internal HDD died, fortunately my entire system was on an external SSD. I've done TM backups of this drive frequently to another external HDD, which contained my music project files too. Than my mac just started turning off at boot. Thought it was hardware fail, but the recovery mode worked, so I've booted up "restore from TM backup". Everything was fine, all my backups were there up to that day. I've tried restoring to the SSD but than I've figured out that the SSD was the problem, so the backup stopped everytime I've tried at around 5-6%. Okay than, new SSD bought today, my only option was to boot recovery from internet, install mountain lion. Did that, but before restoring everything from TM in recovery mode, I've thought that maybe I should create a separate partition for my TM backups, as I have some other stuff too on that drive, so I resized around 200 gigs from my TM backup HDD for the later backups. After that, the TM backup in recovery mode only shows one backup (back from 2014 January). Any other backups are gone (which were shown before the HDD resizing). Although everything is in the same place, in Finder I can see all my backups in the backup folder, however I cant restore them from recovery. If I open TM in OSX, I can actually travel back and see all my backups, but restoring from here is not working because I want to restore all my system files as well, and under OSX It cant be done (files in use, it says). Migration only restores my apps and docs, but not my system files (application support, plugins, etc.) which is the most important thing for me right now, as I dont want to reinstall and setup every vsti and au I used before. I've installed a clean Yosemite and tried than, but still only shows the 2014 Jan backup. I've tried repairing the TM backup disk but it says there are no problems with it. I also did size it back to its full size as it was before, doesn't work either.
    Hope there is some workaround or solutuon, thanks for the help in advance!
    cheers

    Rob Reuland wrote:
    After a clean install of Snow Leopard I wanted to migrate a user folder from a TM backup on separate partition of the boot disk. I tried using Migration Assistant but the TM backup disk was not recognized. I repaired the disk using Disk Utility (took forever but no problems) and tried again. No luck. So I opted for a full restore using the SL install disk, intending to start over. But after booting from the install disk and trying to use Restore from Backup failed. It recognized the backup partition but failed to identify any backups on it.
    Any ideas?
    Try the procedure in #E2 of Time Machine - Troubleshooting (or use the link in *User Tips* at the top of this forum). Does that show the backups?

  • Do I need to change boot disk partition types - if so how?

    I set my boot disk up with several partitions, one of which is the Apple_UFS partition type. I now want to be able to use if for Mac data files - pdfs, word docs, etc. (I'm running 10.4.11 on a powerpc - when I can afford an Intel macbook, I'll upgrade to Leopard).
    I have some questions:
    1) Will puttting Mac files on a Apple_UFS volume cause problems (rsource & data forks in files)? (If its OK, then skip to Q6 &Q7 which I'd like to know for future reference).
    2) Should I change the partition type (to Apple_HFSX)? There's no data on it now, so that's not a problem.
    3) Disk Utility won't let me change partition type, only change the name. Diskutil has the command " eraseVolume format name device", but I suspect that format is the current format, not a new format - please correct me if I'm wrong.
    4) pdisk interactive mode has the "t" command which looks like what I want.
    5) after the partition type is changed, I presume I then need to use newfs_hfs -
    6) I am confused about the device/partition name - "diskutil -l" shows "/dev/disk0" with the partition I want to change as "disk0s11". "pdisk - l" shows "/dev/rdisk0" and the partition number as 11. The "newfs_hfs -h" gives an example of "newfs_hfs -v Untitled /dev/rdisk0s7". So in my case, is my device "/dev/rdisk0s11"??
    7) I have an external firewire drive that also is partitioned. "pdisk -l" and "diskutil list" give different outputs - partitions 1-9 are the same on both (Apple stuff), but pdisk show several "Apple_Free" partitions that diskutil ignores - pdisk has 23 total partitions, hdutil has 18. So which number do you use for the disk-identifier?
    Thanks for any help on this confusing matter.

    The regular versions of PSE 10 have the same kind of automatic updating (just go to Help>Updates and let the updater do its thing) that full Photoshop has. You can update the raw converter in the app store version, but since apple requires that everything in app store programs has to live within the app package itself, the file paths are different, so unless adobe updates the whole program so you can update through the app store, the adobe updater doesn't know what to do. You can do it manually, but it's kind of complicated to dig everything out of the adobe update, not as simple as it was in older versions of PSE.
    This thread over at the adobe forum gives you the general process for updating the app store version:
    http://forums.adobe.com/message/4106312#4106312

  • Changing the size and/or erasing a disk partition

    I have a 2010 MacBook Pro with two disk partitions. The original is 100G and runs Mavericks, and the other is 200G and runs Snow Leopard.  I can change the size of the partition with Snow Leopard that I created but not the original.  In the end I need the partition running snow leopard to be 100G and the original with Mavericks to be 200G.  Essentially swap the size.  Do I need to erase the partition I created to change the size of the original.  If so, what is the best way to do this?

    This is Apple's guidance on disk partitioning.
    http://support.apple.com/kb/PH5845
    Barry

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