Hi
I can no longer see a partition that I had on an external drive. I know that this isn’t probably the best thing to do, but I had a time machine backup on this partition ( as well as one on my macs hard drive). I think I ejected the drive incorrectly once, and since then the time machine partition no longer appears
Disk utility doesn’t launch either when this hard drive is plugged in so I cant even reformat it :-/
would anybody know any more options?
many thanks
Nick
With Bootcamp installed, if I open and work with Windows, can I have access to the other partition where all my files, and OS X, are stored ?
Or is these two partitions are completely separated ?
Can someone help me relocate my bootcamp partition? I resized my drive and read several pages of people fixing the missing drive but I keep running into walls and need someone to hold my hand.
I downloaded gdisk and tried a line of commands that i found here http://nerdr.com/bootcamp-partition-lost-repairing-mac-partitions/ but after trying to add my Windows partition to the MBR the output claimed “the partition does not exist or it is too large”.
diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk0
sudo fdisk /dev/disk0
sudo gpt -vv -r show /dev/disk1
sudo fdisk /dev/disk1
Greetings All!
I am attempting to install Windows 7 on my 2011 iMac running Yosemite. I had just finished a clean install of Yosemite on a freshly installed brand new hard drive.
Running Bootcamp, I got the error “The startup disk cannot be partitioned or restored to a single partition“. Using the powers of Google, I stumbled upon this article from Apple: Boot Camp: Partition alert message when using Boot Camp Assistant – Apple Support . According to that article, the error comes when there are more than the these three partitions: OS X, Boot Camp, and OS X recovery.
Running a “diskutil list” on Terminal, I find that I have 3 partitions: the OS X partition, the Recovery partition, and an “EFI” partition.
My questions a
Thanks for any thoughts you may have!
I have a Mac Pro 2008 (3,1) with 1 AMD and 1 Nvidia video card. It runs fine (I’m using it now) BUT it won’t boot into the recovery partition.
When I boot and select the recovery partition with <option>, the progress bar gets about 2/3 of the way across, and the three monitors flash (only one is on up until that point) as if they’re going to become active, but the machine reboots instead.
Potentially related (and definitely related to the reasons I want to load the recovery partition): The Ubuntu installer CD and USB stick aren’t recognized at boot.
Before anyone says anything — yes, I’m sure the two cards are getting plenty of power. I have a secondary power supply installed. All of the monitors are hooked-up to the AMD. The Nvidia is used for deep learning.
Hello!
I have Macbook(Late 13) and installed OS X 10.11 beta and windows 7 in bootcamp.
At first I left 65 GB for Win7, but some days ago I decided to increase the size of bootcamp, so I created a new “Untitled” partition(~19.91 GB) for further adding to Win7 partition. Then I saw, that Win7 partition disappeared from the “alt-option load” and from Startup disk utility.
Attached screenshots.
I hope I can get help here.
Hi, I am hoping some one can help me. I saw the thread here (Repairing Boot Camp after creating new partition), but I had a hard time following and my configuration might be different.
I have an iMac with boot camp, and created a new partiiton. Now my windows boot camp won’t start. I see it in system preferences > startup disk as an option to start up in, but when I so I get “no bootable disk” message.
If i restart and hold down option, I only see my mac drive to boot into and not the windows partition
Here is my system info:
Boot camp is disk0s5
I would so appreciate any guidance in getting my boot camp bootable again.
I have used Disc utilities to form a new partition on my hard drive. It was all one partition and is 4 TB in size. I wanted a small windows partition to be able to use some other software. I managed to split the partition and it is now 3.95TB for the iMac and the other partition is 50Gm and is formatted as MS_DOS (FAT). How can I use this partition to give me windows or do I have to use bootcamp and after the partitioning reinstall my os system and then install windows.
Thanks for any help even you confirm that it cannot be done the way I am trying.
I am a Mac rookie having just switched to Apple from Windows and am looking to back up my new iMac with a Seagate, 2TB external hard drive. My Mac is a 1TB hard drive so I am looking to partition it for both backup and storage. Is this a good idea? Is there a simple way to do it? I appreciate any help I can get. I also purchased three years of Apple support but I would prefer to do this myself so I thought I would give this community discussion a try. Thanks!!
I Wanted to add a partition to my drive.
after doing this the windows bootcamp partition didn’t show up after holding down alt at startup.
I Followed the instructions here Repairing Boot Camp after creating new partition
Now the disk shows up, but when I select it I get the error Non-system disk Press any key to reboot
When I run sudo fdisk /dev/disk0 I get:
Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 sectors]
Signatu 0xAA55
Starting Ending
#: id cyl hd sec – cyl hd sec [ start – size]
————————————————————————
1: EE 1023 254 63 – 1023 254 63 [ 1 – 409639] <Unknown ID>
2: AF 1023 254 63 – 1023 254 63 [ 409640 – 1167968792] HFS+
3: AB 1023 254 63 – 1023 254 63 [1168378432 – 1269536] Darwin Boot
*4: 07 1023 254 63 – 1023 254 63 [1169649664 – 390623232] HPFS/QNX/AUX
When I try sudo fdisk -e /dev/disk0 I get:
fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory
Enter ‘help’ for information
When I run ‘diskutil list’ I get:
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 598.0 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data WINDOWS 200.0 GB disk0s4
5: Microsoft Basic Data BOOTCAMP 201.3 GB disk0s5
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *31.1 GB disk1
1: Windows_FAT_32 ESD-USB 31.1 GB disk1s1
running ‘sudo gpt -v -r show /dev/disk0′ gets me:
gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168
gpt show: /dev/disk0: Suspicious MBR at sector 0
start size index contents
0 1 MBR
1 1 Pri GPT header
2 32 Pri GPT table
34 6
40 409600 1 GPT part – C12A7328-F81F-11D2-BA4B-00A0C93EC93B
409640 1167968792 2 GPT part – 48465300-0000-11AA-AA11-00306543ECAC
1168378432 1269536 3 GPT part – 426F6F74-0000-11AA-AA11-00306543ECAC
1169647968 1696
1169649664 390623232 4 GPT part – EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1560272896 2048
1560274944 393248768 5 GPT part – EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1953523712 1423
1953525135 32 Sec GPT table
1953525167 1 Sec GPT header
Thank you for any help that can help me get back into Windows and fix the bootcamp partition.
I did not know that modifying the partitions when you have a bootcamp partition setup can screw it up. It did.
I tried some different things I found online, but I think I am making it worse. At one point the drive showed back up when holding down alt restarting, but when I selected it I got a error that said “Non-system disk.” Now windows doesnt even show up though.
I deleted the partition I created in disk utility.
How can I get bootcamp to show back up to boot windows
I currently do not see the bootcamp option when holding down alt at startup.
diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 798.0 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data BOOTCAMP 201.3 GB disk0s4
diskutil cs list
No CoreStorage logical volume groups found
gpt -vv -r show /dev/disk0
gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 1953525167
start size index contents
0 1 MBR
1 1 Pri GPT header
2 32 Pri GPT table
34 6
40 409600 1 GPT part – C12A7328-F81F-11D2-BA4B-00A0C93EC93B
409640 1558595768 2 GPT part – 48465300-0000-11AA-AA11-00306543ECAC
1559005408 1269536 3 GPT part – 426F6F74-0000-11AA-AA11-00306543ECAC
1560274944 393250191 4 GPT part – EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1953525135 32 Sec GPT table
1953525167 1 Sec GPT header
fdisk /dev/disk0
Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 sectors]
Signatu 0xAA55
Starting Ending
#: id cyl hd sec – cyl hd sec [ start – size]
————————————————————————
1: EE 1023 254 63 – 1023 254 63 [ 1 – 409639] <Unknown ID>
2: AF 1023 254 63 – 1023 254 63 [ 409640 – 1558595768] HFS+
3: AB 1023 254 63 – 1023 254 63 [1559005408 – 1269536] Darwin Boot
*4: 07 1023 254 63 – 1023 254 63 [1560274944 – 393250191] HPFS/QNX/AUX
sudo fdisk -e /dev/disk0
fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory
Enter ‘help’ for information
Thank you for any help
My Macbook pro mid 2010 17″ crashed after installing mountain lion on it, then I was locked out of my drive. I ultimately had to use an old backup, but it was from the original snow leopard and apparently the partitions are different which is maybe why mountain lion crashed the system. The old backup worked for a while, but now my computer won’t boot, not even with the original dvd. I bought a new hard drive because disk utilities could not repair the old one. Now, I don’t know how to get the os x installed and running on my new hard drive. Every time I put the disc in, it either ejects or causes a gray curtain to lower over the screen and tells me to restart. I finally got to online recovery and selected the option to reinstall my os x online, but would only offer el capitan. that stopped at the “select a drive” part because no drive showed up to select from. I cleared out the pram, and it gave me the chime finally at reboot and asked for the language. I selected the language then the gray curtain lowered again. So I pressed option and restarted and got to the disk utility to erase the new drive, but it needs to be properly partitioned. How do I know the sizes of partitions Snow Leopard needs in order to install?
I have TimeMachine on a 1.5TB partition of a 3TB external drive (the remaining 1.5TB partition contains SuperDuper backups).
Commencing today, the TimeMachine partition has started to self-eject erratically; the SuperDuper partition remains.
Running “Verify Disk” (on Disk Utility) on the TimeMachine partition, a problem is reported with advice to run “Repair Disk.” This was done with the report that the partition is now “repaired” (but no indication as to what may have been done).
This “Repair,” however, has not affected the erratic ejections!
I happened to have Console open at the exact instance (an hour or so ago) when a self ejection occurred.
This one line is all Console reported:
1/11/16 12:02:42.000 PM kernel[0] hfs: mounted Time Machine on device disk3s2
Are there any suggestions that might help to correct this oddity?
Hi hi at all,
I have many doubts about buy a fusion drive 1 TB or SSD 256GB. I have a question, about fusion drive 1 TB, ¿works the SSD in a partition of windows 10 through bootcamp or only works in iOS?
I dont know what I have to do, thanks you very much.
I deleted a partition and now that disk space is not available in Disk Utility. How can I find it and use it in a new partition?
Can I delete my bootcamp partition on my Mac?
If so, how and will it create any problems for the rest of my HD?
Will I lose any thing on the remaining HD?
Will I automatically gain the GB from the bootcamp onto the rest of my HD?
Thanks
“Not Enough Disk Space” was the message at the end of the partitioning process.
What am I doing wrong?
Hello,
I was attempting to install BootCamp onto my 2012 Macbook Pro but was running into issues as the error message ‘Windows cannot be installed to this disc. The selected disc is of the GPT partition style.’ kept appearing. I troubleshooted a bit and saw a tip recommending that deleting all other partitions could possibly fix this problem. There were four partitions listed and I deleted the three partitions that were not my main OSX partition (the recovery, an unknown, and the pre-created boot camp partition).
However, when I restarted my computer, I found that the mac partition no longer could be booted in to (When I hold option down upon booting, it only shows the Windows partition. The OSX partition is missing). I am assuming that I had accidentally deleted the boot partition, as my main OSX partition is still in tact when I checked disk utility using a Mac installation USB key.
I was wondering if I could do anything to restore the boot partition? Some things that I have tried are using TestDisk using this link: “http://perrohunter.com/repair-a-mac-os-x-hfs-partition-table/”
However, I was unable to start the program using Terminal as it kept saying that sudo was not a valid command.
Thanks in advance for any help that can be offered!