Late 2015 5K iMac Fusion Drive

[NicolasLGA]

Hey everyone, first time posting here (but long time lurker).

While playing with Bootcamp on my brand new iMac, I ran across huge problems and I had to manually erase the 2TB Fusion Drive and then recreate it.

Turns out that El Capitan disk utility doesn't automatically recreate the Fusion Drive, so I had to play around terminal while inside the internet recovery mode to fix it. Everything seems to be ok.

Anyways, to confirm that everything is back as it should, could someone with a late 2015 5K iMac kindly post the info they have on disk utility about both the Mac HD and the general Fusion Drive volume.

I'm posting this here because its really concerning the new iMac and the way the Fusion Drive is set up, which seems different (disks order and other stuff) than other Macs. Greatly appreciated.

 

[The Doctor11]

You just want a screenshot of the system report page for Storage right?

 

[NicolasLGA]

You just want a screenshot of the system report page for Storage right?

That would be great. But if it's not to much to ask also a screenshot showing both the Fusion Drive volume and the Macintosh HD from Disk Utility (the app not the terminal diskutil). I've got some words stuff going on there (I think).

 

[b18221964]

diskutil coreStorage list ?

 

[The Doctor11]

Good Luck!

 

[NicolasLGA]

diskutil coreStorage list ?

At this point show me anything you've got lol

 

[NicolasLGA]

Good Luck!

Thanks a lot! Everything seems good. Contrary to previous Fusion Drives, the new iMac has disk0s2 for the HDD and disk1s2 for the SSD. Mine are listed the other way around tho, probably cause when I created the Logical Volume I switched them around. Will probably restart (Time Machine backups FTW).

Last question... In disk utility, what are the names that appear for internal storage? Mine says Fusion Drive and then under it Macintosh HD. Even if the CoreStorage logical volume is named Macintosh HD (as is yours per the Logical Volume Group Name), it displays as Fusion Drive. I include a lazy screenshot taken with an iPhone.

 

[BigRon1]

I had the same issue trying to install Windows 10 in Bootcamp. I spent 2 hrs re-creating the fusion Drive.
I have been looking for a successful install of Windows 10 in Bootcamp in the late 2015 Imac but haven't found anything. please post if anyone has had success doing this. The Applecare technicians where of little help and a bit clueless if it could be done. thanks

 

[blut haus]

I had the same issue trying to install Windows 10 in Bootcamp. I spent 2 hrs re-creating the fusion Drive.
I have been looking for a successful install of Windows 10 in Bootcamp in the late 2015 Imac but haven't found anything. please post if anyone has had success doing this. The Applecare technicians where of little help and a bit clueless if it could be done. thanks

My Windows 10 install works just fine. What problems are you having? I downloaded the .iso directly from Microsoft and it used that. Install went easily and fairly quickly.

 

[lovelybai]

I don't see any problems installing windows 10 either. Not clear what problem you are facing

 

[maflynn]

I had the same issue trying to install Windows 10 in Bootcamp. I spent 2 hrs re-creating the fusion Drive.
I have been looking for a successful install of Windows 10 in Bootcamp in the late 2015 Imac but haven't found anything. please post if anyone has had success doing this. The Applecare technicians where of little help and a bit clueless if it could be done. thanks

I did not need to mess around with the Fusion drive, at all, I just ran the bootcamp utility and then installed windows. What issues are you having?

 

[BigRon1]

I have installed Windows numerous times on other Mac computers but when I tried to do it on my new IMac it made a windows partition and the would not allow me to install windows on it. Furthermore I tried to do it again and it would not make an additional windows partition and would not allow me to delete the one that was there. So I had to rebuild the drive through Terminal commands now I'm scared to even attempt it again. Maybe Ill try.

 

[maflynn]

but when I tried to do it on my new IMac it made a windows partition and the would not allow me to install windows on it.

Did you format the windows partition to NTFS? Bootcamp only formats it to FAT, and then you need to select the partition and format it to NTFS in the windows installer, at least that's what I always needed to do.

 

[blut haus]

Did you format the windows partition to NTFS? Bootcamp only formats it to FAT, and then you need to select the partition and format it to NTFS in the windows installer, at least that's what I always needed to do.

This was the one "gotcha" that you need to be mindful of. I was confused at first, then realized it wasn't appropriately formatted to install Windows.

 

[BigRon1]

I installed it this morning and the reason I had trouble with it last time was having all the usb devices plugged in. This time I unplugged them all and then formatted the bootcamp partition and everything went smooth thanks for everyones input. My advice when installing bootcamp is unplug all usb devices.

 

[flynz4]

Off Topic:

In Dave Barry's 2015 year in review, he mentioned that Microsoft releases Windows 10, which remarkably converts Windows 8 into Windows 7.

/Jim

 

[blut haus]

Off Topic:

In Dave Barry's 2015 year in review, he mentioned that Microsoft releases Windows 10, which remarkably converts Windows 8 into Windows 7.

/Jim

Heh, indeed! At least I've had the stability of 7 so far in 10.

Heyyyy, Portland! . Try not to slip on the sidewalks today. I didn't have fun earlier.

 

[dimme]

I installed it this morning and the reason I had trouble with it last time was having all the usb devices plugged in. This time I unplugged them all and then formatted the bootcamp partition and everything went smooth thanks for everyones input. My advice when installing bootcamp is unplug all usb devices.

Yes I had to do the same and unplug my USB devices.