More boot camp problems new 5k imac 3 tera fusion drive

there seems to be problems with Yosemite and boot camp assistant
i'm cross posting this to the iMac forum but I spent hours online with apple tech today and none of the several foks I talked to there had even seen a 5k 27" yet and my call back from Cupertino and engineering is no till tomorrow so I thought I should post here too
MMy bto 5k shipped from China sunday night and arrived in Maine this morning.... Amazing when you think about it for a bto
iinstallation and set up we're going fine and I started up boot camp assistant to create a temp boot camp while I wait for my thunder bay 4 box to take the drives for my old Mac pro when boot camp will have a1 tera SSD all to itself....
so carved off a 700 gig boot camp partition which the assistant formatted fat I then plugged is the lighting to FW adapter in a LaCie 2 tera fw 800 drive to act as a bridge to my LaCie DVD burner which uses the old fw400 cables and inserted my new shrink wrap win 8.1 retail 64 DVD and up comes the win 8 install in very tiny type in a tiny window which got a bit of a laugh out of me.
And I go through it to the point of selecting that boot camp partition and then said it could not use a fat partition and I should reformat it from the win 8.1 installer which I did and then it said it could not use and unknown partition so I said great and booted back to 10-10 and the boot camp tool to put things back and it said it could not I then went to disk tools and it also said the 3tera fusion could not be either reformatted or put back to a single partition I was on with tech support where I went up through 4 levels of support due to the 5k bto which most had no knowledge of. We tried the optioncommand r to get to DT and the same problem as did going to reinstall from the net which after a 30 min down load could not reformat either it is now kicked to Cupertino with a call back tomorrow
( At this point all I want to do is put the computer back in the condition it was in when i started with a plain Yosemite on an unpartitioned 3 tera fusion... Then deal with boot camp when it can have its own drive)
am betting it will take a Unix comand line to reformat but be aware there may be boot camp issues with my configuration
and any help here will be great fully received

diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         121.0 GB   disk0s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:          Apple_CoreStorage                         2.3 TB     disk1s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3
   4:          Apple_CoreStorage                         708.1 GB   disk1s4
   5:                 Apple_Boot Boot OS X               134.2 MB   disk1s5
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *2.4 TB     disk2
                                 Logical Volume on disk0s2, disk1s2
                                 B413D0D6-817A-438A-B60A-CAE9B7AC4703
                                 Unencrypted Fusion Drive
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *15.6 GB    disk3
   1:                 DOS_FAT_32 ABOOTCAMP               15.6 GB    disk3s1
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            IR3_CCSA_X64FRE_EN-... *4.1 GB     disk4
/dev/disk5
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk5
   1:                        EFI EFI                     209.7 MB   disk5s1
   2:       Microsoft Basic Data Union                   500.1 GB   disk5s2
   3:                  Apple_HFS Shimmo                  499.6 GB   disk5s3
   4:                 Apple_Boot Recovery HD             650.0 MB   disk5s4
   5:                  Apple_HFS Orange                  500.1 GB   disk5s5
   6:                  Apple_HFS Newcastle               499.4 GB   disk5s6
Ls-iMac:~
and
diskutil cs list
CoreStorage logical volume groups (2 found)
|
+-- Logical Volume Group 1869B0B4-B850-413D-8726-41934602250B
|   =========================================================
|   Name:         Macintosh HD
|   Status:       Online
|   Size:         2412498640896 B (2.4 TB)
|   Free Space:   0 B (0 B)
|   |
|   +-< Physical Volume 7F622DCA-6D45-4940-BE17-893BB57CF948
|   |   ----------------------------------------------------
|   |   Index:    0
|   |   Disk:     disk0s2
|   |   Status:   Online
|   |   Size:     120988852224 B (121.0 GB)
|   |
|   +-< Physical Volume 50B22A72-6463-4CEA-9189-C708884DF658
|   |   ----------------------------------------------------
|   |   Index:    1
|   |   Disk:     disk1s2
|   |   Status:   Online
|   |   Size:     2291509788672 B (2.3 TB)
|   |
|   +-> Logical Volume Family 9064DC1E-5E23-4887-9B99-46507C4A15AF
|       ----------------------------------------------------------
|       Encryption Status:       Unlocked
|       Encryption Type:         None
|       Conversion Status:       NoConversion
|       Conversion Direction:    -none-
|       Has Encrypted Extents:   No
|       Fully Secure:            No
|       Passphrase Required:     No
|       |
|       +-> Logical Volume B413D0D6-817A-438A-B60A-CAE9B7AC4703
|           ---------------------------------------------------
|           Disk:                  disk2
|           Status:                Online
|           Size (Total):          2407000178688 B (2.4 TB)
|           Conversion Progress:   -none-
|           Revertible:            No
|           LV Name:               Macintosh HD
|           Volume Name:           Macintosh HD
|           Content Hint:          Apple_HFS
|
+-- Logical Volume Group 510FD803-3431-4C23-9BAA-1D1CA0C0B065
    =========================================================
    Name:         Winboot
    Status:       Online
    Size:         708089155584 B (708.1 GB)
    Free Space:   707736829952 B (707.7 GB)
    |
    +-< Physical Volume 033CEB50-621B-474F-9AB0-D4FC410A9718
        Index:    0
        Disk:     disk1s4
        Status:   Online
        Size:     708089155584 B (708.1 GB)
Ls-iMac:~

Similar Messages

Boot camp Yosemite Win 8.1 3tb Fusion Drive problems

Hi,
As many other have reported on the internet I am having problems installing windows on my iMac 27' late 2014 3tb fusion drive, where the partition I create falls outside the 2.2tb limit that prevents windows to be installed when selecting disk under the windows installation (i.e, same problem as Win 8.1, iMac Retina 3TB Fusion, Yosemite, Boot Camp fail!).
Is my understanding correct that this issue was solved in the OS X Mountain Lion Update v10.8.3 or was all they did to make sure boot camp could create a partition, but windows still couldn't find it?
I am using Yosemite 10.10.2 and I am wondering if for some reason they didn't include this update?
Has anyone successfully installed windows through boot camp on a 3tb fusion drive on yosemite, without 'manually' dividing the 3tb fusion into two partitions, and then creating the windows partition within the first partition?
Many thanks
iMac (Retina 5K, 27-inch, Late 2014), OS X Yosemite (10.10.2), 3tb fusion drive

You are correct. Please see - iMac (27-inch, Late 2012): Boot Camp alert with 3TB hard drive - Apple Support.
BCA should work. If you are running into any issues, can you post the output of the following Terminal commands?
diskutil list
diskutil cs list
sudo gpt -vv r show /dev/disk0
sudo gpt -vv r show /dev/disk1
sudo fdisk /dev/disk0
sudo fdisk /dev/disk1

Does anyone else get the following message when trying to use boot camp on new 3tb iMac

The startup disk cannot be partitioned or restored to a single partition.

Gornet
Re: Bootcamp for 3TB fusion drive solution?
Mar 18, 2013 1:58 PM (in response to fotofil_de)
With 10.8.3 Bootcamp and Win8 install work like a charm. No DVD needed. Win8 install image and drivers are packed on the same usb stick (or similar device) and the installation and driver upgrade process are a clean sweep through.
Solved!
There many who made this work, so there is some evidence.

Boot Camp problem.

I need boot camp and i have a 3tb fusion drive hdd on my new imac.
I need windows both on vmware fusion (and everything is ok with it, it works perfectly) to execute fast simple applications not availabale on mac os And on boot camp to execute 'heavier' programs.
Following the http://www.twocanoes.com/support/winclone/installing-windows-via-boot-camp-on-a- large-(2.2-tb-or-larger-)-drive-in-lion-(10.7)-and-later
instructions i got stuck here http://d.pr/i/oYZP,
i cannot add a third partition, everything is grey.
The twocanoes guide theory is clear but i need a step-by-step instructions with utility disk:
here http://d.pr/i/pSSw i understand i've got to partition the hdd in 3 slices, but i can add just one as you can see here http://d.pr/i/4dRN . I can't do nothing, just add one partition and change size with the arrows (i can't write the numbers by myself but this is not a problem, i simply don't understand why).
I tried to create a partition, one is macintosh with mac file system, 2tb size. The other one called windows with fat file system and took the remaining size available.
After 8 hours it finished and i found this http://d.pr/i/oYZP.
I don't understand why the win size is 2tb and not 1 and mac one is so small and not 2tb.
I'm a bit upset because working with mac+windows is crucial for my work and i'm wasting a lot of time.

Welcome to the Apple Support Communities
Caution! You are trying to follow the steps to install Windows on a 3 TB hard drive, but you have a 3 TB Fusion Drive, so you can't follow those steps.
Instead, see > http://www.twocanoes.com/support/winclone/installing-windows-on-a-boot-camp-part ition-on-a-3-tb-fusion-drive
That's very dangerous, so make a backup of your files before doing anything. If you want to be sure or you don't want to follow those steps, I highly recommend you to wait until Apple launches a OS X update that makes Boot Camp compatible with a 3 TB Fusion Drive, or download Parallels, VMware Fusion or VirtualBox, and install Windows on a virtual machine

Boot Camp problem + General partitioning

First, the Boot Camp problem
I don't know exactly how to explain, but I kind of made the partition and restored them into one single startup disk, for several times. It was OK for the first few times, but then it required me to run Disk Utility (from startup) to repair the disk before I can partition. It happened for one time. But after that, it started to ask me to back up the hard disk, format it, and restore it, then try Boot Camp again. So, the ending of the story is I can never do boot camp again now because I wouldn't waste at least 70 quid for a hard disk large enough to back up solely because I need to run Boot Camp. Is there anybody here know why this is happening? And, eventually I think I'd have to buy an external drive and back up, format, restore, then run Boot Camp. But doesn't it sound dumb and familiar? This is exactly the ONE AND ONLY way to fix any problems in a PC. Aren't macs supposed to be far better than PCs? Why do we have to do what PC users have to painfully do? I hope somebody here can come up with a solution that doesn't involve "backup>format>restore".
Second, the partitioning,
I came up with an idea to solve the above problem. But I don't know whether it actually works, so I'm seeking for advice. I was hoping if I run Disk Utility from start up, make two partitions (or more) for the mac HD, one HD being the one holding all the data, and the remaining being empty. Then I can format the empty one (which seems rather redundant), and do the Boot Camp thing on this partition. However, there are two points I have doubts with. One, if I split my current single mac HD into multiples of partitions, will any or even all my data be lost? Because I can only specify how much to partition, I wouldn't have the chance to "tell" the computer to keep all existing data on one partition. Two, I know that Boot Camp can run on an external HD, so is it possiible to run on a different partition?

Just an idea for you. There is an entire Apple Discussion forum dedicated to Boot Camp and Windows XP.
Whereas, not everyone here with an Intel iMac has installed, tried to install or has experience with BC & XP, everyone there has or at least has an interest. You may attract help more quickly there.
The Forum is at the bottom of the main Apple Discussions page under Windows Compatible Technology.
Here is a link;
Forum: Boot Camp Public Beta

Can't back-up new iMac with fusion HD. The back-up proceeds to within 10% of the total storage needed and then the "of" number increases. I suspect there is a problem with backing up the fusion drive. We have a new 3 TB time Capsule. Any ideas?

Can't back-up new iMac with fusion HD. The back-up proceeds to within 10% of the total storage needed and then the "of" number increases. I suspect there is a problem with backing up the fusion drive. We have a new 3 TB time Capsule. I tried excluding different parts of the software from the back-up but it didn't make any difference. I even tried exluding "invisible items" to no avail. Any ideas?

When you setup the wireless and ethernet in the computer.. ipv6 will be on automatic.. this is wrong for the latest TC firmware and airport utility. http://support.apple.com/kb/TS4597
Go to the wireless and ethernet setup in preferences and change ipv6 to link local.
Once you do the big backup by ethernet the wireless will function fine for incremental.. it is obviously not estimating the size correctly..
A full back-up on the iMac would be about 650 GB. The partial updates that I have been trying start out at 115MB and keep growing indefinitely. The original back-up never finished nor have any of the follow-up attempts.
The first estimate should be the full backup but it will keep growing as the backup advances.. I would also delete any inprogress files to make sure it is not messing up .. delete even a sparsebundle if there is one for the imac on the TC and start afresh once you have ethernet connection.
See A10 here.
Pondini may have some other clues there to give you an idea of why the backup is slow or not finishing.. there is a lot of issues with TM when it decides not to work.

How do I install Windows XP with boot camp assistant, on my IMac?

How do I install Windows XP with boot camp assistant, on my IMac?

Lion cannot BootCamp XP.
You can install XP under virtual machine software (Parallels, VM Fusion, VirtualBox).
And Windows 7 Pro has XP mode. XP will requires probably days of pathing after install and will be completely unsupported by MS within 1 year, but Windows 7 Pro still has great support from MS.

What is the Unix command line command to reformat the internal 3 tera fusion drive in my 5k retina 27 iMac ?

there seems to be problems with Yosemite and boot camp assistant
i'm cross posting this to the iMac forum but I spent hours online with apple tech today and none of the several foks I talked to there had even seen a 5k 27" yet and my call back from Cupertino and engineering is no till tomorrow so I thought I should post here too
MMy bto 5k shipped from China sunday night and arrived in Maine this morning.... Amazing when you think about it for a bto
iinstallation and set up we're going fine and I started up boot camp assistant to create a temp boot camp while I wait for my thunder bay 4 box to take the drives for my old Mac pro when boot camp will have a1 tera SSD all to itself....
so carved off a 700 gig boot camp partition which the assistant formatted fat I then plugged is the lighting to FW adapter in a LaCie 2 tera fw 800 drive to act as a bridge to my LaCie DVD burner which uses the old fw400 cables and inserted my new shrink wrap win 8.1 retail 64 DVD and up comes the win 8 install in very tiny type in a tiny window which got a bit of a laugh out of me.
And I go through it to the point of selecting that boot camp partition and then said it could not use a fat partition and I should reformat it from the win 8.1 installer which I did and then it said it could not use and unknown partition so I said great and booted back to 10-10 and the boot camp tool to put things back and it said it could not I then went to disk tools and it also said the 3tera fusion could not be either reformatted or put back to a single partition I was on with tech support where I went up through 4 levels of support due to the 5k bto which most had no knowledge of. We tried the optioncommand r to get to DT and the same problem as did going to reinstall from the net which after a 30 min down load could not reformat either it is now kicked to Cupertino with a call back tomorrow
( At this point all I want to do is put the computer back in the condition it was in when i started with a plain Yosemite on an unpartitioned 3 tera fusion... Then deal with boot camp when it can have its own drive)
am betting it will take a Unix comand line to reformat but be aware there may be boot camp issues with my configuration
and any help here will be great fully received

Try booting into Internet recovery mode, ⌘⌥R, launch Disk Utility to erase the HD. If successful, reinstall the OS. If not, then return it (14 days with no questions asked) and get another machine. Apple sells it and they should know how to fix it.
27" i7 iMac (Mid 2011) refurb, OS X Yo (10.10), Mavs, ML & SL, G4 450 MP w/10.5 & 9.2.2

Trouble with iMac and Fusion Drive

Hello, I recently tried installing Windows 8.1 via Boot Camp on my Retina iMac. The install was unsuccessful, so I went to Boot Camp and deleted the partition. After that, I realized I was not able to access that space on the HDD. Reading around, I ended up deleting the Logical Volume, and breaking the Fusion Drive into 2 separate drives. I have tried to consolidate them again using Disk Utility from recovery, but I keep getting an error. After this, I tried it within Terminal. I keep getting an error that the drive cannot be unmounted. Can anyone shed light onto why this may be, and how to fix the issue? I appreciate any help I can get.

I figured it out, made a bootable USB, booted to that, then rebuilt the Fusion Drive inside Disk Utility.

IMac 27" with Thunderbolt Display connected, Boot Camp Problem

Hi everyone.
Let me start off by saying that I'm using a late 2012 iMac 27", 3.4 GHz i7, 680MX, 32 GB RAM, 1 TB Fusion, with a Thunderbolt Display connected.
I installed Windows 8 via Boot Camp, and it works just fine. Here comes my problem:
I have dual screens and I play Minecraft. Minecraft's full screen is basically crap, and therefore I disabled the iMac display. I used Windows-button+P to use only the secondary display. This turns the iMac display off entirely, and leaves the Thunderbolt Display on. Note: This is not possible in Mac OS X. Then I played a little Minecraft. When I was done, i wanted the main iMac display to come on again. I then used Windows-button+P again, to turn both displays on. Then bam, totally looked like the iMac display was broken. See the images below, to see how it looks:
1) http://cl.ly/image/1p2e3c1Z1z1C
2) http://cl.ly/image/2g0n1M1Y0t0g
3) http://cl.ly/image/2Q2P1c1J220d
4) http://cl.ly/image/113b3K2O1Z43
5) http://cl.ly/image/1q2v1s1n3w1f
This image-retention-like stuff stays there, even if I reboot into Mac OS X, and then it eventually disappears. I can reproduce this, by doing the same thing again, (windows-button+p) but only in Windows, because that you cannot turn of the main display in Mac OS X. Maybe this is the reason why you can't?
Anyone can tell me what I can do? I guess I could try reinstalling, but it seems more like a hardware issue, than a software issue.
Thank you for your time, and thanks in advance.
Another note: I'll try doing the opposite, and see if it happens on the Thunderbolt Display as well. (Windows-button+P, and then only using the main display)
//ifraaank

Ok, I am marking this as "answered", as I have solved it myself, while I still have no clue what lead to the problem in the first place.
I've been on the phone with Apple Care today, and they were as clueless as I was and had never heard of this before.
After we tried the usual stuff (unplugging all wires, PRAM Reset, SMC Reset), to no avail, I was told it could well be a hardware problem and that I should have the iMac examined at the Genius Bar, so an appointment was made.
I'll cancel that one though, as I was able to cure it by myself for now (and carrying around a 27" iMac in Munich's busy downtown pedestrian zone is not really fun).
This is what I did (and I'm so happy I tried):
In Display Settings, I switched the external display back to landscape mode and selected "mirror displays".
Then I rebooted, and voilà, the problem was gone (Apple logo on white background was showing).
I switched it back to 90 degrees rotation and no mirroring, and it's still all ok.
I booted Windows 7 in Bootcamp, then back to Snow Leopard, and it's all still fine.
I can still only wonder what messed this up in the first place, but for now I'm happy.

Boot Camp problems with Windows 7, and a new Macbook Pro

When I try to install Windows 7, when the process is almost complete and Windows is finalizing all settings, the system reboots then gets stuck at the white/gray bootscreen, and then tries to boot from disk, only to repeat the bootscreen cycle indefinitely. How do I fix this? Thank you very much.

My MAC BOOK is 13 inch, first generation of unibody that I bought when it first came out last November, 2009. It seems that the latest boot camp 3.1 does not support windows7 64 bits on my mac book model. I followed Apple instruction to upgrade boot camp 3.0 when running XP 32 bits. And I then upgrade my XP 32 bits to 64 bit Windows 7. The upgrade/installation was successful but I encountered a lot of problems with the mouse and sound.
1. No sound with my new Windows 7 64 bits.
2. I managed to make Windows 7 64 bit recognize my apple mighty mouse. But the mouse does not funtion normal as expected. It does not work with swiping and scrolling.
3. I could not re-install boot camp 3.0 from windows.old nor from the Mac OS X installation disk. When I tried to run setup.exe from the MAC OS X snow leopard, I got the error "Boot camp x64 is unsupported for this model"
I am really disappointed that boot camp 3.1 is not universally supported for all mac book or mac book pro.
I need help to re-install boot camp for my Windows 7? I bought the upgrade through education upgrade program and I selected to get 64 bit version so I do not want to rollback the installation to 32 bit.
Please help.

Boot camp on new imac

Where does boot camp work on the different types of hard drive on the new imac

Boot Camp installs Windows on a partition of the internal boot drive. If you order a Fusion Drive, which is a combination of a hard drive and an SSD, the partition is on the hard drive.

IMac Boot Camp Problem

Hey!
I have a late 2009 iMac 27 inch and trying to install Windows 7 via boot camp.
The internal disc drive is blocked, so I have to use an external superdrive (i use apples external drive).
But after I've created the partition and the computer restarts, the screen goes black and it says "no bootable device insert boot disk and press any key".
It seems that Windows doesn't recognize the Apple external superdrive with the Windows disc in it.
What should I do?
Thanks

Hello,
No panic, download the ISO on Internet, and burn it to an USB Stick. Then go to System Preferences, and to Start Up (maybe, I don't know, I am French...) and select the boot device, then hit reboot. To burn the ISO to the USB stick, go there : http://unetbootin.sourceforge.net, and the ISO from Windows 7 is here : http://www.techverse.net/download-windows-7-iso-x86-x64-microsofts-official-serv ers/, but don't forget to activate it to avoid viruses and to get a "Microsoft Original Software"

Driver issue FIXED in Vista / boot camp with new, unibody macbook pro!!

Hay people, I found a fix for the freezing issues with Vista running in Boot camp with the new, unibody Macbook pros. The driver for the 9600M Gt is no good if you install it from the Apple 2.1 version driver disc (Mac osx disc)for some (most) of us.
I needed to go to Nvidia's site and download the one from DECEMBER 08. If you click the "download drivers" tab on the site, scroll past the current driver it wants you to look at (go to the near bottom of page), click the archives, and input your OS version. Also input "Gforce" and "M" series when needed. It will give you a choice of two drivers. DO NOT CHOOSE THE FEB 09 Driver. Thats the BAD driver for most of us. Choose the DECEMBER 08 driver. Download and enjoy. Be sure to roll back the VGA driver (or the current driver) first before you install this. It should work.
I've been through the ringer with this for weeks now and have even tried to take my MBP back to swap for a new one. Apple wont have any of that so I thought I was SOL. Not quite. This DOES work for me with Vista. It also works for Windows & if you have it handy.
By the way, I am posting this for people who HAVE HAD THE FREEZING problems, not for people who haven't. Apparently there are some out there who are running Vista just fine on their unibody MBS's. Most of us are not.
Cheer's-----Seattle, where the evil empire looms dark

This never worked. I sold that machine and got a new 17" unibody. IT, by the way, works just fine. I KNEW it was that **** 15'. It took 30 more seconds to boot up I found out also.

64-bit Windows 7 on Boot Camp Problem

I recently got my new Macbook Pro, 15" with Intel i7 inside. I installed Windows 7 64-bit in it through Boot Camp right after I got it.
However, after installation, I found my Mac system takes far longer time to boot up than as before (Well, that "far longer" actually means around 20 seconds more than original). Some of my friends told me this could be handled if I totally remove the Windows partition and work on Mac only. However, I purchased lots of software in Windows, abandoning it would mean huge losses to me. Could anyone help me with this?
Besides, while running Windows 7, the OS seems to be quite unstable. First, the computer gets overheated easily; second, the system crashes quite frequently - not a blue screen, but instead, everything stops running and I could not even move my mouse, like what WinXP used to do. I actually just came back from Windows 7 from that problem -- I could only press and hold the power button to shut it down before I could do anything with my computer... So sad...
I'm running Boot Camp 3.1, so probably it's about updating the program.
Could anyone help me? I'd be so grateful for the help. Thank you

Thanks for your answering. I know Windows 7 could be stable, rock solid, for I've been using that OS on the laptop I once had before getting the new mac.
I'll try to search for some new updates for my hardware later and then try if things will be better.
Besides, I noticed that you're running Windows 7 and Mac OS X as well, do you also encounter problem of having the boot up time of Mac OS, too? I mean, it will stay longer at the point where the screen is white all over with the apple logo shown.
In addition, I also had some problems with switching between the two OS's. When I pressed the power button on the computer, I should also press and hold "option" until Boot Camp shows up the two OS's for me to select, right? However, this worked for me before, but recently, I found it really hard to do that: when I press and hold "option", the screen will keep white, and nothing will ever show up, unless I press the power button again to shut it down... Do you have any ideas about this kind of situation?

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