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Helpful answers
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Dec 2, 2015 9:51 AM in response to larspjby Loner T,larspj wrote:
I just did a full rebuild of my Fusion drive in Recovery mode. and Disk util rebuild it as per apple default with SSD as disk 1 and my 3TB as disk 0
So i wouldn't recommend above from Loner. as i dont think Disk util will rebuild it in any other way.
A CS PV at index 0 is fast disk designed to off-load LRU blocks to disks at index 1...n. If you have it any other way. it is invalid. Please see the IO tests at http://jolly.jinx.de/teclog/2012.10.20.fusion-drive-on-older-macs-yes.html .
Diskutil will rebuild a CS anyway you want it to. Please also see OSX and Bootcamp discussion .
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Dec 2, 2015 9:57 AM in response to Plysovej_Kaktusby Loner T,You are confusing disk0 and disk1 with CS PV indices. disk0 and disk1 are based on probes by controllers to discover disks. They have no relationship with the CS index. Once a CS is built, the order of discovery may change and disk1 may be the SSD. The CS unit stores the indices and manages data block movement based on CS PV Indices, not the diskN numbering. The instructions you wrote need to account for the ordering of the fast vs slow disks. As I posted earlier, see the IO test results. You want the slower disks at index 1...n not at 0. If you have multiple SSDs, you must ensure that the faster disks have lower indices than any of the slowest disks.
I have had to fix the Apple instructions over the years. Please see the links I have posted.
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Dec 2, 2015 10:50 AM in response to Loner Tby Plysovej_Kaktus,I tried to understand both links you sent but I still don't follow why SSD should be always the first. Can you please write a little howto how we can rebuilt partitions so the SSD will be first? I'll try.
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Dec 2, 2015 10:55 AM in response to Plysovej_Kaktusby Loner T,Please see this example El Capitan Upgrade bootcamp not showing Windows 10 .
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Dec 2, 2015 11:57 AM in response to Loner Tby Plysovej_Kaktus,CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group B24CB135-A898-4C6F-B85B-EC50E15204A5
=========================================================
Name: Mac
Status: Online
Size: 2120528027648 B (2.1 TB)
Free Space: 114688 B (114.7 KB)
|
+-< Physical Volume 78B4C325-6D0A-4B97-AF1B-FABD818E60E7
| ----------------------------------------------------
| Index: 0
| Disk: disk1s2
| Status: Online
| Size: 120988852224 B (121.0 GB)
|
+-< Physical Volume AAB666F7-C010-4AEA-9660-3DF270165B46
| ----------------------------------------------------
| Index: 1
| Disk: disk0s2
| Status: Online
| Size: 1999539175424 B (2.0 TB)
|
+-> Logical Volume Family 8386538B-8A68-46A2-A10C-73B301A1FA6A
----------------------------------------------------------
Encryption Type: None
|
+-> Logical Volume E4CC4C1A-754D-4F25-90C8-9C622246CE9B
---------------------------------------------------
Disk: disk2
Status: Online
Size (Total): 2114672656384 B (2.1 TB)
Revertible: No
LV Name: Mac
Volume Name: Mac
Content Hint: Apple_HFS
LVG Type: Fusion, Sparse
Summary: It is possible to change disk order, diskutil cs create <DataHDDFriendlyName> <SSD> <HDD> is the key (Late mac 27" 2015 with fusion drive 2TB). My previous numbered howto here is therefore correct except this one point where as Loner T correctly wrote. Let's see if windows will install...
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Dec 2, 2015 4:48 PM in response to Plysovej_Kaktusby Loner T,How did you get Drive0: Partition 5? It should be partition 4.
Can you post your diskutil list output?
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Dec 3, 2015 12:18 AM in response to Loner Tby Plysovej_Kaktus,/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *2.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage Macintosh HD 1.3 TB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s6
4: Microsoft Basic Data OSXRESERVED 8.0 GB disk0s4
5: Microsoft Basic Data BOOTCAMP 651.7 GB disk0s5
/dev/disk1 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage Macintosh HD 121.0 GB disk1s2
3: Apple_Boot Boot OS X 134.2 MB disk1s3
/dev/disk2 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +1.5 TB disk2
Logical Volume on disk1s2, disk0s2
C63A2632-ED74-4AEB-998E-3265C2333025
Unencrypted Fusion Drive
/dev/disk4 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: ESD-ISO +3.5 GB disk4
New bootcamp on iMac doesn't give you 3 choices anymore. It creates partition with windows installation. This is listed while bootcamp is preparing windows to install. Normally, 4 and 5 are not there.
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Dec 3, 2015 7:33 AM in response to Plysovej_Kaktusby Loner T,Please post the output of sudo fdisk /dev/disk0 . The OSXRESERVED being present is a good sign. Can you mount it and check what files are present?
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Dec 3, 2015 8:14 AM in response to Loner Tby Plysovej_Kaktus,Filips-iMac:Contents plysovejkaktus$ sudo fdisk /dev/disk0
Password:
Disk: /dev/disk0 geometry: 243201/255/63 [3907029168 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 1023 254 63 - 1023 254 63 [ 1 - 3907029167] <Unknown ID>
2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
While bootcamp is installing iso onto OSXRESERVED before automatic restart. Volume is mounted while bootcamp is filling it with data which are then being used for installation:
Filips-iMac:Contents plysovejkaktus$ df -h
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk2 1.6Ti 29Gi 1.6Ti 2% 7757849 426080037 2% /
devfs 188Ki 188Ki 0Bi 100% 651 0 100% /dev
map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net
map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home
/dev/disk0s4 7.4Gi 4.2Gi 3.2Gi 57% 0 0 100% /Volumes/OSXRESERVED
/dev/disk4 1.1Gi 1.1Gi 0Bi 100% 0 0 100% /Volumes/Boot Camp
After automatic restart and unsuccessfull windows installation, I can't longer the partition (even it's there, I can access it via bootloader and run again):
Filips-iMac:/ plysovejkaktus$ df -h
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk2 1.6Ti 29Gi 1.6Ti 2% 7745063 426092823 2% /
devfs 185Ki 185Ki 0Bi 100% 641 0 100% /dev
map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net
map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home
/dev/disk0s5 307Gi 131Mi 307Gi 1% 27 321810333 0% /Volumes/Untitled
ls /dev/disk*
/dev/disk0 /dev/disk0s2 /dev/disk0s5 /dev/disk1s1 /dev/disk1s3
/dev/disk0s1 /dev/disk0s3 /dev/disk1 /dev/disk1s2 /dev/disk2
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Dec 3, 2015 8:27 AM in response to Loner Tby Plysovej_Kaktus,Here's filelist of OSXRESERVERD as prepared by BootCamp for Windows 10 installation:
https://drive.google.com/file/d/0B9b7ONnBwzfjNm1DOUFJbExwMnM/view?usp=sharing
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Dec 3, 2015 9:57 AM in response to Plysovej_Kaktusby Loner T,After disk0s5 has been created and before the installer starts, do you have the ability to run the following command on the disk0s5
diskutil eraseVolume free Free disk0s5
and then select it from the Windows installer.
You may have to time the erase appropriately.
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Dec 3, 2015 10:03 AM in response to Loner Tby Plysovej_Kaktus,So you mean before windows installer starts?
Sure, I made watch command in terminal listing files in OSXRESERVED as you requested which blocked automatic restart.
I do now and then try install again.
Before install:
Filips-iMac:Volumes plysovejkaktus$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *2.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage Macintosh HD 1.7 TB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data OSXRESERVED 8.0 GB disk0s6
/dev/disk1 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage Macintosh HD 121.0 GB disk1s2
3: Apple_Boot Boot OS X 134.2 MB disk1s3
/dev/disk2 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +1.8 TB disk2
Logical Volume on disk1s2, disk0s2
C63A2632-ED74-4AEB-998E-3265C2333025
Unencrypted Fusion Drive
/dev/disk3 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: J_CCSA_X64FRE_EN-GB... +4.0 GB disk3
/dev/disk4 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: Boot Camp +1.1 GB disk4
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Dec 3, 2015 10:16 AM in response to Loner Tby Plysovej_Kaktus,didn't create partition, just pressed next so windows created it automatically, short after copying began, popup window throwing error appeared:
"Windows detected that the EFI system partition was formatted as NTFS. Format the EFI system partition as FAT32, and restart the installation."
Is it possible to manually create windows partitions and install windows entirely via command line? Do you have experience doing that?
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Dec 3, 2015 10:18 AM in response to Plysovej_Kaktusby Loner T,You need to format it as Free Space not NTFS. Did you use Shift+F10 in the installer? What year/model is your Mac?