Partitioning iMac internal HD

Now iMac inte it is ONE Tb ptn
plan repartition from external FW 400 HD using FW800 to FW400 apple ccnnecting cable
choose to create 200 and 800 GB partitions for 2 different system versions.
Do I assume correctly that "untitled 1" will be the first one and best for the 800 GB?
Plan is Yosemite in small partition and Snow Leopard in large as most use will be there
This will erase the entire disc as I understand it and I can reinstall SL from an external FW drive.
Suggestions or don'ts or do's plez

Hi AMBER93,
When using Disk Utility, it all depends on how you set it up. You can choose which one will be 200 or 800 gb partition. Follow the steps in the first article and it will walk you through partitioning your hard drive as well as sizing it to your needs. If you need help with install an OS on your external drive, then I have provided that walk through as well
Disk Utility 12.x: Partition a disk
http://support.apple.com/kb/ph5845
OS X: Installing OS X on an external volume
http://support.apple.com/en-us/HT202796
Take care,
-Norm G. 

Similar Messages

  • Partitionning iMac internal HD in order to use MBA as main computer?

    I'm planning to use my late 2011 MBA (with the lid down) plugged to the Thunderbolt equipped iMac I'm buying now.
    The MBA would therefore become my main machine (I'm actually replacing my actual iMac which is not Thunderbolt equipped. The new Thunderbolt equipped iMac will be used only for tasks I can't perform with the MBA and as a replacement machine in case my MBA goes to repair, right).
    I would like to store all my data (pictures, films, websites projects, documents, iTunes & Aperture libraries, and so forth) on the new iMac's internal HD, the advantage being I could access the mentioned data at Thunderbolt speed without having to purchase an external Thunderbolt HD.
    I'm thinking of creating 2 partitions on the iMac internal HD:
    - one partition for the iMac
    - a second partition the as my data repository I would access mainly from the MBA - and also from the iMac when needed.
    Hence my questions:
    - is it a good idea? if not, what could be the problem?
    - if somebody has a better solution, please let me know.

    If your backup external drive has a power brick the Thunderbolt<->FW adaptor will work, many bus powered drives require more power than Thunderbolt provides. However you may be fine with USB. Your first TimeMachine backup will take a while, subsequent backups are shorter because they are incremental. I tend to connect my MBA to its external USB TM drive once or twice a day at home and the backup takes just a few minutes unless I install a big OS or program update. I strongly recommend against connecting the drive to your base station - for whatever reason at some point - days, weeks or months later - the backup session will fail and after that nothing will get it going again except formatting the drive and starting over. Apple doesn't support this form of wireless backup.
    Take a good look at your current drive use and try to think back to estimate how your drive has expanded over the last couple years. Adding a larger drive to the MBA later is expensive and carrying around an external drive isn't particularly fun. Will 256GB be sufficient 2 years from now? Remember, you need to keep 10-15GB free for temporary files.
    Finally, remember that a computer you carry around is at greater risk than the one sitting on your desk. A single backup drive is better than most have but two is better. A third kept somewhere other than the home is best. I like having one of those backups being a clone because I can boot up with it and get right back to work.

  • Can i use seagate goflex 3tb external hard drive for 2010 27" imac internal hard drive replacment if i take it out of the goflex case.do i need to format it before installation due to it allready having goflex software on it from manufacturer.

    i have 3tb seagate goflex external hard drive.its brand new in package.i took it out of case and deleted partitions that were created by manufacturer.so now i have 2800 gigs.its formatted ntfs.will it work for late 2010 27" imac internal hard drive replacement.i found a apple repair place that will charge me 50$ to swap drives for me assuming i have the drive.i will have to install leopard myself at this price.i dont want to have to pay for anything other than the swap.will this hard drive work with this format or do i need to format it differently.

    Hello
    formatted ntfs
    NTFS format not work on mac system , need to be formatted as Extended Mac os Journaled format and partition table need to be GUID
    how to do that in video
    HTH
    Pierre

  • I replaced my 2010-2011 iMac internal HD i dont have an install disk i created one with my external HD but when i go to install lion onto my imac it stays at the apple logo screen.HELP ME PLEASE!

    I replaced my 2010-2011 iMac internal HD i dont have an install disk i created one with my external HD but when i go to install lion onto my imac it stays at the apple logo screen.HELP ME PLEASE!

    Boot from the original Install disc that came with the computer and then format the drive Mac OS Extended (Journaled) using the GUID partition. Then  you can re-install OS X. If you no longer have the original media call AppleCare with the serial number of the machine (look on the bottom of the stand) and for a nominal fee they will ship you replacement media.
    The chances are very good you will have fan problems if you used an off-the-shelf HD, beginning in 2009 Apple began using HD's from vendors that incorporated heat sensors into the HD. If you did not buy the same type of HD your computer will think the HD is overheating causing the fans to run at full speed.

  • Problem installating Snow Leopard on old Macbook Pro with Intel Core 2 Duo. After creating partition on internal hard disk (Extended Journaled), installation starts but stops at half of the progress bar. Screen asking Restart appears.

    Hello:
    I have tried installing Snow Leopard via the installation disc on a Macbook Pro (2007) with an Intel Core 2 Duo, but I the installation has failed more than 5 times.
    I have first formatted and partitioned the internal hard disk with Mac Os Extended Journal format.
    Once the installation starts, it starts without a problem unti lthe progress bar gest until half completed then a screen asking for a Computer Restart shows up.
    It asks to press the power button for some time until it the computer shuts down and then, press again to turn it on.
    Once turned on, the installation disc gets readed, the installation screen appears again and asks again to start the whole installation process form the beginning.

    Then you have a Hardware Problem.
    Your system is Crashing part way through the install and Re-Booting because of the crash.
    Could be the drive itself or it could be some other hardware part in your system. Like the RAM.
    To check if it is the internal drive connect an External drive to the system by USB and do the install on that external. If the install completes then it more then likely the drive is bad. If it crashes again then it is more then likely some other piece of hardware in your system.

  • I've lost the use of Appleworks in 10.9.2. Is it possible to partition the internal hard drive of my MacBook Pro and install an older Mac OS (10.6.8) on the second partition with OS 10.9.2 on the other?

    I've lost the use of Appleworks by upgrading to 10.9.2.
    Is it possible to partition the internal hard drive of my MacBook Pro and install an older Mac OS (10.6.8) on the second partition with OS 10.9.2 on the other? I'd like to be able to boot to the older OS when I need Appleworks and  few other applications that aren't available on OS 10.9.2.
    Any suggestions?
    Thank you for your help.

    Hello again, WZZZ,
    Here's an update. I was successful in creating two partitions on my internal drive, and in installing OS 10.6.6 on the second partition, as per your guidence. I now have it up to 10.6.8 with all the security updates and AppleWorks. A great thing.
    Some thoughts:
    • The partitioning had one hitch; it failed at first. But once I "repaired" the disc with Disc Utility the partitioning went thru.
    • The partitioning took a long time in 'resizing the partition.' A few hours I think it was. Lots of progress bar watching.
    • If I had it to do again, I'd size the two partitions differently. My original data was occupying about 230 Gb of the 320 Gb disc. I made the new partitions share the space, about 230 and 75Gb. That left very little available space for the main disc. I ought to have put some breathing room in there. As it is, it's an incentive to clean up all those files, especially all those iTunes files. I now have about 10% of available space there and mean to continue deleting.
    So, all in all a good project that got me where I wanted to go. Thank you for your help.
    Appreciatively,
    wallah

  • Can time capsule back up an external hard drive attached to my imac and the iMac internal Harddrive

    Can time capsule back up an external hard drive attached to my imac and the iMac internal Harddrive

    In addition to Kappy's comments, the external drive must be formatted in Mac OS Extended (Journaled) in order for Time Machine to be able to back it up.

  • IMac internal optical drive reads and plays cd's but DVD's spin for a few moments then eject. Then any drive utility access results in the spinning wheel of doom. Then the optical drive doesn't show up anywhere until a restart. OSX 10.6.8 - Intel Core 2

    iMac internal drive locks up after trying to play a DVD. CD's work properly. All preference settings are correct. I have tried several different DVD's that work in other drives. Drive is : HL-DT-ST DVDRW GA11N. After spinning wheel of doom goes away, so does the optical drive in Disk Utility and System Profiler and no disks work because the drive isn't there until a restsrt. Any ideas? Thanks.

    The battery alone is a $5 to $15 part.  Hard drives vary in cost, and depending on the iMac, they may or may not be able to install a third party hard drive, or one resold through Apple.    The resold through Apple drives tend to cost more.  This article discusses the varying successes of third party drives on iMacs:
    http://blog.macsales.com/10146-apple-further-restricts-upgrade-options-on-new-im acs 
    The labor costs depend on the store as well as the time to get the parts in stock.    Call around.

  • IMac - internal or external DVD?

    iMac - internal or external DVD? That is the question...
    Can you install a normal DVD burner in an iMac 800MHz flat panel?
    If so, can anyone advice on the technical proceedure?
    If installing an internal drive is easy enough to do, can you please advise on types, makes or specs to install.
    My current DVD drive runs slow and I'd like a DVD burner, so is a seperate external drive the better option?
    External drives just seem so expensive. THANK YOU!

    Hello, 
    Internal.
    Most replacement optical drives should work under Tiger fine. If not Patchburn will be the driver you need.
    Most of us have Pioneer 'superdrives' installed by Apple so it seems sensible to stick with that product line.
    The DVR-112 (18x DVD±RW DL for £21) seems a good deal to me (plus and hour or two of your time).
    It's pretty fiddly to work inside an iMac G4 so you must be cautious. Always take anti-static precautions. Here are three options for guiding you through the procedure:
    MacWorld
    xlr8yourmac
    Service Manuals
    I've also taken a fair few photos which you can find here.
    I'd advise reading the reports on the xlr8yourmac drive database so get other people's experiences first.
    You must replace the Thermal Paste when you close the iMac up or it will overheat.
    It's probably worth replacing the PRAM Battery whilst you're in there as these have a finite life (once they fail to re-charge you may start to run in to snags - it's only a £5 part).
    External.
    A whole lot less effort to install and should you upgrade to an Intel iMac / Mac Mini/ MacBook in the future you'll have access to this faster desktop spec tray loading drive rather than the slow laptop spec slot drive installed in these current Macs.
    Let us know how you get on/what you decide.
    mrtotes

  • I just purchased an external disk drive to store my pictures.  I want to keep the last 12 months of pictures on my iMac and move the rest to the new external drive.  As new pictures are added I want them to be put on the iMac internal drive.  How?

    I just purchased an external disk drive to store my growing number of pictures.  I want to keep the last 12 months of pictures on my iMac and move the remaining pictures to the new external drive.  As I take more pictures I want them to be put on the iMac internal drive.  Every 3 to 6 months I would then move some additional pictures to the external drive.  I am nuervous about losing any of the pictures and want to make sure I follow the proper procedure.  What is the right way to handle this?
    Thanks.

    Here's one way to do what you want:
    Make sure the drive is formatted Mac OS Extended (Journaled)
    1. Quit iPhoto
    2. Copy the iPhoto Library from your Pictures Folder to the External Disk.
    Now you have two full versions of the Library.
    3. On the Internal library, trash the Events you don't want there
    Now you have a full copy of the Library on the External and a smaller subset on the Internal
    Some Notes:
    As a general rule: when deleting photos do them in batches of about 100 at a time. iPhoto can baulk at trashing large numbers at one go.
    You can choose which Library to open: Hold down the option (or alt) key key and launch iPhoto. From the resulting menu select 'Choose Library'
    You can keep the Library on the external updated with new imports using  iPhoto Library Manager

  • Should I partition my internal HD 500G for MacBook Pro ??

    Should I partitioning my internal HD 500G ? 

    In that case really what you want is an external HD for a Time Machine Back-up or a Bootable clone backup.
    http://www.maclife.com/article/howtos/how_make_bootable_clone_your_mac
    http://support.apple.com/kb/ht1427
    If the internal HD fails all partitions fail along with it.
    Command R for Recovery is worth reading up on as well.  http://support.apple.com/kb/HT4718

  • How to repair disc on second partition iMac 27? 10.6.8, but second is still 10.6.3.  Can I use the original 10.6.3 install disc to start, and then go to the side needing repair?

    Partitioned iMac 27, Sept. 2010.  Verify disc on HD2 says "corrupted,  needs repair," unspecified.  "Use install disc to repair."  HD2 is isolated from Internet since birth.  HD 10.6.8, but HD2 is still 10.6.3.  Can I use the original 10.6.3 install disc to start, and then go to the side needing repair, without a problem?
    Part 2:  After 4 years, suddenly when HD2 is revived from sleep, it makes an Internet connection, all settings are the same, Network shows Ethernet is unplugged, but the indicator from modem shows connection.  Maybe connected to first part of my question, but maybe not.
    Thank you.

    Graham Giles wrote:
    Have you seen this type of problem before? I think it could be a serious issue for anyone in a similar position.
    No; but then, I've not had occasion to use TDM. I've been using firerwire drives for over 10 years, both FW400 and FW800, with no issues except a bit of instability using a B&W G3 machine.
    TDM should be safe. Using cautious, manual copying of files from the Target machine to the Host machine should not result in unexpected loss of files or damage to the Target drive's directories. It should behave exactly the same as if it were an external (to the Host) firewire drive.
    •  I don't suppose there is anything I can do to 'put back' lost items from a separate Time Machine drive which has an up to date backup on it.
    There is probably a way to do that - seems to me that's one of the reasons for a Time Machine volume.
    On the other hand, if the Time Machine volume is rigidly linked to the now-absent OS on the original drive, there may be no way to effectively access the files in the TM archive.
    I know that using a cloned drive would work well in this instance.
    I have no experience with Time Machine, so perhaps someone who has will chime in with suggestions.
    With the machine in TDM with the other machine, have you tried running Disk Utility to see if you can effect repairs to the drive?

  • Recording a live piano performance with GB and iMac internal mic

    I am a complete novice with GB. My iMac sits six feet away from my piano, and in a few days my piano teacher will play a concert on it. I am into digital photography, but have no video recording equipment. Can I record this performance using GB and my iMac internal mic, and, if so, how? I would understand completely if you refer me to an article or other secondary source where this is covered.

    You will certainly benefit from the mic upgrade. Be aware that most "studio mics" require a microphone preamplifier to bring the level up to something that your computer will be able to see (as well as to provide power if the mic requires it). If the connector is the type that looks like a headphone plug which will fit in your computer input, you are probably ok.
    The recording quality will normally be determined by the format and settings instead of the application you are using to record. Stick to 16 (or 24) bit, stereo .aif files and you should be fine. The standard for CD recording is 44.1kHz.
    For some information and advice on recording piano, there is an article on my website here: http://doghouseNYC.com/articles/piano1.htm
    Good luck!

  • Help ,Disk utility does not allow me to partition my internal HD

    hello , i want to partition my internal hard drive but for some reason disk utility does not allow me to , when i click on the partition window everything is greyed out, i read on other thread that file vault might be the problem but is already off , i can t figure out what the issue is any ideas ??? here is a screenshot.

    Not if you want to be able to restore the Boot Camp partition using Boot Camp Assistant. There are alternative boot loaders you can use to add Windows and Linux to an OS X drive. You would first need to restore your drive by deleting the Boot Camp partition you now have. Then take a look at The rEFInd Boot Manager: Getting rEFInd - Roderick W. Smith.

  • External Hard Drive Failures after iMac internal drive replaced

    I was one of those lucky ppl who had to have my internal 1TB Seagate HDD replaced due to the recall. It was replaced on Friday.
    After the drive was replaced (with another Seagate, ***?), I cloned my previous system back to the new drive (restoring from Time Machine required me to re-download Lion, which required me to re-download to a newer version of Snow Leopard, and just, Oi, vey, I used my clone).
    I then had to create another bootcamp partition, and after that, I restored my previous bootcamp from an image backup with Winclone.
    The next morning, my Time Machine external backup drive (a Maxtor OneTouch) makes horrible fluttering and crunching noises and cannot be found via disk utility, certainly doesn't mount to the desktop. I figure it just coincidentally failed and attached a new drive (a different OneTouch) for backup.
    While Time Machine is performing an initial backup to this new drive (will take 10 hrs), I try to move a few media files to another external media drive (LaCie 1TB). I receive a couple of error -36s on a few particular files, so I figure I should wait for the Time Machine to backup and then diagnose the media drive.
    The next morning (after 10 hr backup is finished), I have a stop-sign error that a disk was unmounted improperly (the LaCie media drive). The drive cannot be seen in disk utility or on a completely different MBP running Snow Leopard. It's spinning up, but it can't be read.
    Only thing I can think to do is reinstall 10.8.2 over top the cloned system, make sure that the recovery partition was recreated and working.
    This can't be a coinicidence, right? At this point, I'm afraid to keep my external storage drives and clone attached to the iMac, but I'm afraid to not have TM drive attached. Anyone know where to start diagnosing the problem?
    1. Could a new internal drive be the problem, hardware wise?
    2. Could the lack of an initial recovery partition or the setting up of a bootcamp partition have these sorts of consequences?
    3. Could the problem be from restoring a clone?

    Well, it is a LaCie-packaged adapter, some version of that model. The hub is on the mac mini inspired line of LaCie HDs (http://www.lacie.com/company/news/news.htm?id=10269). I've had it for 6 yrs, and the hub is still going. Other drives have been running from the hub without issue for all that time (and still are). There is no hissing, and the display light indicates the hub is getting power.
    You think it's time for a new hub?
    The internal switchout is just a coincidence?
    (Basically, I'm not a hardware expert. Does anyone know if an internal drive or internal sensor/connection problem can cause externals to fail or blowout a controller? I'm waiting on a drive dock to arrive—I'll know more whether these are HD failures or chip failures after that. Both drives showed normal-seeming power use via their display lights.)

Maybe you are looking for

  • ToolTip positioning and volume 'hit' area problem

    Hello, I have been working on re-skinning the player that comes with Adobe's FMS, in flex builder 3 and I would really appreciate some help on the following issues. 1. Positioning the tooltips. I have figured out how to change the style of these (tex

  • Dynamic attributes in Bid

    Hi friends, I need to know / confirm dyanamic attributes manual evaluation process. 1. A purchaser creates a bid invitation with dynamic attribute for "text". Evaluation     for this attribute is "Manual" 2. Bidder puts his comments against this attr

  • BAPI for bank related transaction

    Hi All, can u pls suggest me the BAPI used to upload 1)bank financial year master data 2)A/C type master data 3)bank payments & receipts master data

  • Flash video link not working

    Hi all, I am using Flash CS5 on MAC/OS10.6. I created a Flash project a few months ago which was published as HTML and SWF. Everything ran beautifly until today. Infact it ran great yesterday. Now when I click on the HTML or SWF, the video controls a

  • MRP list - Exception 30

    Hello All, In MRP List a schedule line is created with exception message 30. what does it mean? (MRP type is P1 for the material). There are requirements (for ex in 03.04.2008), but it is planned only on 05.05.2008 with rescheduling date 31.03.20008