OS X :: External Hard Drive Missing Partition?
Apr 5, 2010
I've done some searching on the forums, but I cannot find exactly what I need. I currently have a Maxtor external hard drive partitioned into two sections; one for time machine, the other for music, movies, etc. Normally, the two separate partitions would show up on my desktop (labeled "Music" and "Time Machine") but as of lately the Time Machine partition fails to show. I cannot find the volume anywhere, but the Music partition still reads perfectly fine. how I can relocated the Time Machine partition?
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Jun 3, 2014
Disk Utility Crashed whilst creating a Partition, and I now have ~100GB missing, which was the amount I had allocated to the new partition.
The new partition didn't get created, and I now have 100GB missing from the Hard drive. I have a 1TB hard drive, and when I go to Disk Utility, it says: Capacity : 999.35 GB (999,345,127,424 Bytes)Available : 586.1 GB (586,103,844,864 Bytes)Used : 310.52 GB (310,524,317,696 Bytes)
Which adds up to about ~900GB.
I tried Repairing Disk in Disk Utility, booting into Recovery Mode and Repairing Disk there, but neither made a difference.
Info:
MacBook Pro (15-inch Mid 2012), OS X Mavericks (10.9.3)
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May 25, 2009
I recently bought my first hard drive, a Hitachi 640GB, I just plugged it in and it's telling me there's 595 GB of 595 GB available.
Like I said, this is my first hard drive, can someone explain the reason why I'm missing 45 GB? Is it an operating system? Is there anyway to get rid of it?
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Feb 24, 2010
All files on my external hard drive are missing. I was connecting my laptop to my external hard drive. It was taking an unusually long time. Once it did finally connect, two external hard drive icons appeared. then everything froze. I restarted my computer, but it wouldn't restart. After three days it finally restarted but nothing is on my hard drive. Mac os version 10.4.11
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Mar 11, 2009
Recently I bought a Mac OS X Leopard, which comes with the Bootcamp. I have the XP operating disk, and Virtual Box, which is another program like Bootcamp. Instead of the bootcamp way of rebooting every time you switch between operating systems, Virtual Box allows both systems to run simultaneously. Instead of taking up space on my hard drive, I purchased a Seagate FreeAgent (Desk Edition) 1TB external drive.
I need to partition this drive in two, to allow the combined running of PC and Mac OS X using Virtual Box. The formats I will be using are FAT 32 and Mac OS Extended (Journaled). The latter is very easy, as I can simply do this on the Mac. However, the FAT 32... Since I am splitting the external hard drive in two, my XP PC cannot create a partition using FAT 32 which is greater than 32GB, and if I create the F32 partition using the Mac it won't be recognized by the PC operating system.
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Nov 25, 2009
if I could partition my external hard drive so one half holds all my Mac OS X data such as Itunes music and the other half hold my Microsoft Windows files.
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Sep 17, 2010
So I ran Disk Utility and ran the disk repair on my Western Digital external hard drive. After I did this all my files have disappeared, but it still shows that all the space that was taken up before is still being occupied. Is there any way I can recover my files? I am getting really distressed about it because I have almost 500 gbs of data that I don't know if I can get back or not.
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Jul 23, 2008
i have a 320gb external hard drive and was wondering if i could partition it so i could use it just as an external hard drive on one partition, but have time machine on the other partition. i just recently got my frist mac, which is a macbook, and i love it.
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Jul 22, 2009
I have a WD 640GB External drive and i would like to partition some for time machine and some for storing my files. i just have some questions:
1) If i partition the drive into 2, in the future can i join the two partitions together again?
2) does the whole external drive have to have the same file system like HFS or NTFS or can one partition be HFS + for time machine and the other partition NTFS to make it readable on windows?
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Dec 26, 2009
if i can partition my Windows NFTS External Hard Drive. I do not want to format it because i have some important files and programs on my External Hard drive, But I also want to use it for Time Machine Backup. I was wondering if it was possible to Not format my Hard drive, Partition it, And then format the 2nd partition to Mac, and use it for time machine. I am using Mac OS X Leopard 10.5.8
The Capacity of the EHD is 55.9GB
Available: 37.1GB
Used: 18.8GB
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Jan 15, 2009
I recently bought a 160GB external hard drive, and decided to transfer my iTunes music to it. I followed the instructions in the Help section of the iTunes program. The first time, I mistakenly created an empty "iTunes" folder and put an "iTunes music" folder inside, where i proceeded to copy the files. I had already set the defult location of the library to my F: drive, my external hard drive. However, the original location of the files stayed in iTunes. Again, following the advice of the iTunes program, I deleted the original folders, and I dragged the new iTunes music folder into the window - at which point i had TWO copies of each file - the first one with an exclamation beside it (original file missing) and the second being my new copies.
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Nov 2, 2010
i'd like to format my lacie external hard drive with two partitions:
1. HFS+ partition as a bootable clone of my internal drive
2. FAT32 partition readable by any windows (and mac) machine
i'm creating my partitions with disk utility, but i hit a snag when choosing a partition scheme...apparently i cannot choose a different scheme for each partition.
so when i format the drive with GUID, the FAT32 partition is not even recognized by windows XP. but when i format the drive with master boot record (MBR), the HFS+ partition is not bootable...
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Oct 30, 2009
I am looking at getting an airport extreme along with an external hard drive. My idea is to use the external hard drive as network storage along with a time machine drive for my MacBook Pro. Is it possible to partition the external drive with one partition being for network storage and the other for time machine?
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Jun 25, 2012
How do I partition my external hard drive without losing the data already on it? I've been using it with Time Machine on my old computer, but want to use it as a regular drag-and-drop type back up on my new computer. Is there any way to basically split the hard drive so I can still access the Time Machine backups on my old computer, but also be able to use it with my new mac?
Info:
MacBook Pro, Mac OS X (10.6.8)
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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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Aug 28, 2014
I have a MacBook Pro running OSx 10.9.4 and have been successfully using Time Machine with a WD My Passport External Hard Drive for a while. Now (after 10 days with a successful back-up), the computer will not back-up. I have gone into disk utility and tried to erase, partition, and/or repair the disk, but repeatedly get error messages - it can't erase the disk, re-partition the disk or unmount the disk.
Info:
MacBook Pro (13-inch Mid 2010), OS X Mavericks (10.9.4), External Hard Drive
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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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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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Nov 5, 2009
I'm running Snow Leopard on my new Macbook Pro. I've got a 1.5TB External hard drive that I'm trying to figure out how to format in HFS+ with Apple Partition Map. I can figure out how to format in HFS using Disk Utility, however it still does it in GUID format and I do not know how to do it in Apple Partition Map.
Googleing this for hours has lead with all kinds of information on how to go to GUID FROM Apple Partition Map but not the other way around. I know GUID is the new hottness.. but this drive will be used exclusively to connect to my XBOX 360 and it supposedly only reads HFS+ when its formatted with Apple Partition Map. (I have tried it with Mac OS Extended (Journaled) with GUID, and the XBOX does NOT recognize it) I do not want to use Fat 32, (I know that that is the other major option) beacuse it limits file size.
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Jul 27, 2009
I have an aluminum unibody macbook from October 2008. I'm looking to upgrade the 160 GB hard drive inside to a 500 GB one I'm considering from Newegg. Would it be possible to migrate/copy/clone the entire contents of my current hard drive to the 500 GB one? I also have a section of my current hard drive partitioned for Bootcamp. Would this affect my ability to transfer everything over?
If this is possible at all, how can I go about doing so? If there are steps laid out somewhere, I'd appreciate a referral. Sorry if my question is a little elementary, but I did a search on these forums and also google and nothing really came up
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Jul 30, 2009
I had my hard drive partitioned into 2, where one was mac the other windows xp. I received this macbook as a gift from my sister so i wanted to reformat everything into mac. I popped in the Mac OS x install cd and just installed it. Now there is two hard drives and I am not able to re-partition it where i can bring it back to one again...I was suppose to delete windows first before re-formating my macbook.
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Feb 12, 2009
I am trying to format my external drive to have (2) partitions. A NTFS for backing up my Windows computer and a HFS for backing up my MacBook Pro.
This is what ive tried:
1.) Create 2 partitions on my Mac in Disk Utility. 1 partition HFS, 1 partition FAT32. After doing this both show up in OSX but neither one shows up in WinXP. I was hoping the FAT32 would show up in WinXP so I can convert it to NTFS.
2.) Create 2 partitions in WinXP using Disk Management. 1 partition is NTFS and 1 is FAT32. Connected the drive to my MBP and both partitions mounted in Finder. I then opened Disk Utility and tried to "Erase" the FAT32 partition to HFS. The process seemed to be working but then it changed the name of the partition to disk1s1 and nothing else. The partition doesnt mount in Finder or WinXP.
3.) Create 2 partitions in WinXP using Disk Managment. Both partitions as NTFS. Connected to MBP and both partitions mounted in Finder. Opened Disk Utility and tried to "Erase" one of the NTFS systems to HFS. Same thing happen as #2, renamed the partition but didnt do anything else. The partition doesnt show up in Finder or WinXP.
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Jul 5, 2012
My time maching back up is 60 GB less than my Hard Drive and I know that the back up is an accurate count of used GB's as I have been keeping an eye on this. I recently empltied my trash and found 15 GB's but I am still showing a 60 GB difference between what my MAC HD says vs. my Time Machine back up HD. How could this be? and where could I possibly missing 60GB. I would think if they were actually used somewhere that Time Machine would be backing them up as well.
Info:
Mac mini, Mac OS X (10.7.4)
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Sep 28, 2009
My intention is to partition an external HD in half allowing it to serve as a backup for a pc running windows xp, and the other half as a backup for a mac(10.5. I am using a Seagate external HD(new) that was initially partitioned on a windows xp computer.
The 1st half of the 1TB HD was formatted in NTFS format, and the second half was erased and (I thought) reformatted in HFS plus but when I attempt to use CCC(Carbon Copy) to copy the mac 1/2 of the hard drive, I get this message:
"You may have difficulty booting from this target volume, the underlying disk is not formatted with a partitioning scheme that Apple recommends for Intel Macs."
I have read the recommendations that the external HD need to be partitioned with APM or GPT, but I cannot seem to get to that option now for the mac side of the external HD.
In the Disk Utility, the external HD shows both sections of the partitioned drive(the xp section and the leopard). I do not want to reformat the entire drive(both sections) if at all possible.
I just want the Mac side of the ext drive to be properly prepared for CCC, and the windows side to remain as is.
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Nov 12, 2009
if i delete files off my internal hard drive (Macintosh HD), will it still be on my external hard drive or will it just add to it?
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Feb 26, 2008
my hard drive icon disappeared from my desktop.My second internal hard drive icon is there, but not the main one.I've done every version of computer maintenance that I can think of and still no icon.Meanwhile, my computer is running fine, it just seems like impending doom is around the corner.
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Sep 14, 2009
I have a MacBook Pro and when I click on the harddrive and Get Info, it tells me I have used 100 gigs of 111 available. But when I right click on Macintosh HD in Finder and Select All of the folders and hit Get Info, it tells me they add up to only 95gigs. Where is the other 5 gigs hiding? My trash is empty.
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Sep 12, 2014
I have partitioned my external Hard drive into three different partitions, each of different formats. Two partitions for backing up my macbooks and one to copy to and from my windows PC. I would just like to know if in any way is it possible for me to be able to re-partition one of the partitions, without affecting my Time machine partitions, in case the need be in future.
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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