Q: Dual boot with Yosemite — Sierra not showing up
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Sep 27, 2016 9:48 AMby Allan Eckert,I have the same configuration and have no problem going back and forth between either operating system.
Please download and install EtreCheck from http://etrecheck.com/
Run it and post the report here.
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Sep 27, 2016 10:49 AMby John Purlia,The result of scanning the Yosemite configuration is completely clean. More interesting, though, is this line from a scan of the Sierra volume:
/etc/sudoers, File size 2299 but expected 1563
That is potentially concerning. I do use sudo occasionally for certain Terminal operations, but I've never really dipped into this particular file from an administration standpoint.
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Sep 27, 2016 1:41 PMby John Purlia,Here's the report from Sierra (located on a local drive):
EtreCheck version: 3.0.5 (309)
Report generated 2016-09-27 10:28:26
Download EtreCheck from https://etrecheck.com
Runtime 2:12
Performance: Excellent
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: No problem - just checking
iMac (27-inch, Late 2012)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac13,2
1 3.4 GHz Intel Core i7 CPU: 4-core
24 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
BANK 0/DIMM1
8 GB DDR3 1600 MHz ok
BANK 1/DIMM1
8 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
NVIDIA GeForce GTX 680MX - VRAM: 2048 MB
iMac 2560 x 1440
macOS Sierra 10.12 (16A323) - Time since boot: less than an hour
APPLE HDD ST1000DM003 disk1 : (1 TB) (Rotational)
EFI (disk1s1) <not mounted> : 210 MB
Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
Office iMac (disk2) / : 1.11 TB (320.13 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 998.70 GB Online
APPLE SSD SM128E disk0 : (121.33 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Boot OS X (disk0s3) <not mounted> : 134 MB
Office iMac (disk2) / : 1.11 TB (320.13 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 998.70 GB Online
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Western Digital My Passport 0820
Seagate Backup+ Desk
SanDisk U3 Cruzer Micro
Datacolor Datacolor Spyder4
Seagate Backup+ Desk Mac 800mbit - 800mbit max
disk3s1 (disk3s1) <not mounted> : 210 MB
Media (Yosemite) (disk3s2) /Volumes/Media (Yosemite) : 3.00 TB (2.35 TB free)
Recovery HD (disk3s3) <not mounted> [Recovery]: 650 MB
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt to FireWire Adapter
/etc/sudoers, File size 2299 but expected 1563
Mac App Store and identified developers
/Library/Extensions
[loaded] com.Cycling74.driver.Soundflower (2.0b2 - SDK 10.10 - 2016-09-22) [Support]
[loaded] com.seagate.driver.PowSecDriverCore (5.2.7 (26979) - SDK 10.4 - 2016-09-22) [Support]
/Library/Extensions/Seagate Storage Driver.kext/Contents/PlugIns
[not loaded] com.seagate.driver.PowSecLeafDriver_10_4 (5.2.7 (26979) - SDK 10.4 - 2015-07-16) [Support]
[loaded] com.seagate.driver.PowSecLeafDriver_10_5 (5.2.7 (26979) - SDK 10.5 - 2015-07-16) [Support]
[not loaded] com.seagate.driver.SeagateDriveIcons (5.2.7 (26979) - SDK 10.4 - 2015-07-16) [Support]
[not loaded] 7 Apple tasks
[loaded] 175 Apple tasks
[running] 89 Apple tasks
[not loaded] com.apple.jetsamproperties.Mac.plist (2016-08-25) [Support]
[not loaded] 37 Apple tasks
[loaded] 167 Apple tasks
[running] 100 Apple tasks
[running] com.canon.MFManager.plist (2012-05-22) [Support]
[loaded] com.oracle.java.Java-Updater.plist (2013-06-07) [Support]
[loaded] com.adobe.fpsaud.plist (2016-08-29) [Support]
[loaded] com.apple.aelwriter.plist (2010-05-18)
[loaded] com.barebones.authd.plist (2012-05-19) [Support]
[not loaded] com.barebones.textwrangler.plist (2011-03-04) [Support]
[loaded] com.oracle.java.Helper-Tool.plist (2013-06-07) [Support]
[running] com.seagate.TBDecorator.plist (2013-10-11) [Support]
[loaded] com.apple.MobileMeSyncClientAgent.plist (2011-08-07)
[loaded] com.apple.SafariBookmarksSyncer.plist (2010-02-05)
[loaded] com.bittorrent.uTorrent.plist (2016-09-20)
[loaded] com.google.keystone.agent.plist (2016-07-12) [Support]
[not loaded] jp.co.canon.Inkjet_Extended_Survey_Agent.plist (2009-08-30) [Support]
Google Drive Application (/Applications/Google Drive.app)
Dropbox Application (/Applications/Dropbox.app)
SpyderUtility Application (/Applications/Datacolor/Spyder4Pro/Support/SpyderUtility.app)
JavaAppletPlugin (1.7.13.20): Java 7 Update 13 (2013-06-07) [Support]
SpeedDownload Browser Plugin: 2.1.2 (2013-06-07) [Support]
Flip4Mac WMV Plugin: 3.2.0.16 - SDK 10.8 (2013-06-07) [Support]
RealPlayer Plugin: Unknown (2013-06-07) [Support]
Silverlight: 5.1.30514.0 - SDK 10.6 (2015-04-24) [Support]
FlashPlayer-10.6: 23.0.0.162 - SDK 10.9 (2016-09-19) [Support]
QuickTime Plugin: 7.7.3 (2016-09-13)
Flash Player: 23.0.0.162 - SDK 10.9 (2016-09-19) [Support]
iPhotoPhotocast: 7.0 (2013-06-07)
AdobePDFViewer: 9.0.0 (2014-07-14) [Support]
EPPEX Plugin: 3.0.5.0 (2013-06-07) [Support]
JavaAppletPlugin: Java 8 Update 101 build 13 (2016-08-26) Check version
CitrixOnlineWebDeploymentPlugin: 1.0.104 (2013-04-11) [Support]
fbplugin_1_0_3: Unknown (2010-02-25) [Support]
WebEx64: 1.0 - SDK 10.6 (2012-10-29) [Support]
MacShop - Ivo Nedelko - http://macshopp.com (2014-10-08)
SaveFrom.net helper - SaveFrom.net - http://savefrom.net (2015-09-28)
A Better Finder Preferences (2009-02-14) [Support]
Flash Player (2016-08-29) [Support]
Flip4Mac WMV (2013-06-07) [Support]
Java (2016-08-26) [Support]
Perian (2013-06-07) [Support]
Seagate Dashboard for Mac OSX (2015-08-31) [Support]
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Office iMac: Disk size: 1.11 TB Disk used: 791.05 GB
Media (Yosemite): Disk size: 3.00 TB Disk used: 645.40 GB
Destinations:
Time Machine [Local]
Total size: 5.00 TB
Total number of backups: 137
Oldest backup: 6/4/14, 8:10 AM
Last backup: 9/27/16, 10:01 AM
Size of backup disk: Adequate
Backup size 5.00 TB > (Disk used 1.44 TB X 3)
3% fontd
2% WindowServer
1% kernel_task
0% launchd
0% com.apple.AmbientDisplayAgent
1.23 GB kernel_task
492 MB mds_stores
492 MB mdworker(15)
295 MB Google Drive
221 MB Dropbox
18.00 GB Free RAM
5.96 GB Used RAM (2.62 GB Cached)
0 B Swap Used
Sep 27, 2016, 10:23:57 AM Self test - passed
Sep 25, 2016, 10:01:33 AM /Library/Logs/DiagnosticReports/com.boinx.fmexport_2016-09-25-100133_[redacted] .cpu_resource.diag [Details]
/Applications/FotoMagico.localized/FotoMagico.app/Contents/XPCServices/com.boin x.fmexport.xpc/Contents/MacOS/com.boinx.fmexport
Sep 25, 2016, 09:41:46 AM /Library/Logs/DiagnosticReports/com.boinx.fmexport_2016-09-25-094146_[redacted] .cpu_resource.diag [Details]
Sep 24, 2016, 01:04:43 PM /Library/Logs/DiagnosticReports/FotoMagico_2016-09-24-130443_[redacted].cpu_res ource.diag [Details]
/Applications/FotoMagico.localized/FotoMagico.app/Contents/MacOS/FotoMagico
And here's the report from Yosemite (located on a remote drive):
EtreCheck version: 3.0.5 (309)
Report generated 2016-09-27 10:19:40
Download EtreCheck from https://etrecheck.com
Runtime 2:54
Performance: Excellent
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: No problem - just checking
iMac (27-inch, Late 2012)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac13,2
1 3.4 GHz Intel Core i7 CPU: 4-core
24 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
BANK 0/DIMM1
8 GB DDR3 1600 MHz ok
BANK 1/DIMM1
8 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
NVIDIA GeForce GTX 680MX - VRAM: 2048 MB
iMac 2560 x 1440
OS X Yosemite 10.10.5 (14F1912) - Time since boot: less than an hour
APPLE HDD ST1000DM003 disk1 : (1 TB) (Rotational)
EFI (disk1s1) <not mounted> : 210 MB
Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
Office iMac (disk2) /Volumes/Office iMac : 1.11 TB (320.40 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 998.70 GB Online
APPLE SSD SM128E disk0 : (121.33 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Boot OS X (disk0s3) <not mounted> : 134 MB
Office iMac (disk2) /Volumes/Office iMac : 1.11 TB (320.40 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 998.70 GB Online
Western Digital My Passport 0820 2 TB
EFI (disk6s1) <not mounted> : 210 MB
Tape Archives (disk6s2) /Volumes/Tape Archives : 1.50 TB (596.93 GB free)
Recovery HD (disk6s3) <not mounted> [Recovery]: 650 MB
Install OS X Yosemite (disk6s4) /Volumes/Install OS X Yosemite : 502.14 GB (495.76 GB free)
Seagate Backup+ Desk 5 TB
EFI (disk5s1) <not mounted> : 315 MB
Time Machine (disk5s2) /Volumes/Time Machine : 5.00 TB (687.38 GB free)
Datacolor Datacolor Spyder4
Apple Inc. FaceTime HD Camera (Built-in)
SanDisk U3 Cruzer Micro 8.04 GB
Shuttle (disk4s1) /Volumes/Shuttle : 8.04 GB (1.47 GB free)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Seagate Backup+ Desk Mac 800mbit - 800mbit max
disk3s1 (disk3s1) <not mounted> : 210 MB
Media (Yosemite) (disk3s2) / : 3.00 TB (2.35 TB free)
Recovery HD (disk3s3) <not mounted> [Recovery]: 650 MB
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt to FireWire Adapter
Mac App Store and identified developers
[not loaded] 4 Apple tasks
[loaded] 147 Apple tasks
[running] 61 Apple tasks
[not loaded] 42 Apple tasks
[loaded] 140 Apple tasks
[running] 79 Apple tasks
[loaded] com.adobe.fpsaud.plist (2016-08-29) [Support]
[loaded] com.google.keystone.agent.plist (2016-07-20) [Support]
iTunesHelper Application Hidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Dropbox Application (/Volumes/Office iMac/Applications/Dropbox.app)
Google Drive Application (/Volumes/Office iMac/Applications/Google Drive.app)
SpyderUtility Application (/Volumes/Office iMac/Applications/Datacolor/Spyder4Pro/Support/SpyderUtility.app)
FlashPlayer-10.6: 23.0.0.162 - SDK 10.9 (2016-09-16) [Support]
QuickTime Plugin: 7.7.3 (2016-09-16)
Flash Player: 23.0.0.162 - SDK 10.9 (2016-09-16) [Support]
Default Browser: 600 - SDK 10.10 (2015-07-16)
Flash Player (2016-08-29) [Support]
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Tape Archives: Disk size: 1.50 TB Disk used: 900.30 GB
Media (Yosemite): Disk size: 3.00 TB Disk used: 645.69 GB
Destinations:
Time Machine [Local]
Total size: 5.00 TB
Total number of backups: 134
Oldest backup: 6/4/14, 8:10 AM
Last backup: 9/18/16, 11:09 AM
Size of backup disk: Adequate
Backup size 5.00 TB > (Disk used 1.55 TB X 3)
2% kernel_task
2% WindowServer
2% fontd
1% identityservicesd
1% mds
1.06 GB kernel_task
541 MB mds_stores
270 MB Google Drive
172 MB Dropbox
74 MB iconservicesagent(2)
20.00 GB Free RAM
4.49 GB Used RAM (2.12 GB Cached)
0 B Swap Used
Sep 27, 2016, 10:14:20 AM Self test - passed
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Sep 29, 2016 9:18 AMby John Purlia,After a couple of days testing across several clean installs of Sierra, El Capitan, and Yosemite across multiple hard drives (though, not, multiple computers) I've narrowed down the problem to a very specific configuration. When Sierra is installed on the first volume of an internal Fusion Drive, Yosemite will not offer this volume as a restart option in the Startup Disk preference panel. All other combinations work fine — Sierra as the second volume, El Cap or Yosemite on the first volume, etc... So it would appear that there is an issue with Sierra on a Fusion Drive that prevents Yosemite on an external drive from seeing it as a viable boot option.
I spent a couple of hours on the phone with Apple yesterday going through various configurations and — at least on my class of iMac (27" late 2012) — it's a repeatable problem, and a bug has been filed.
The problem definitely does not occur when a Fusion Drive is not present and it may not be present on other mac models.
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Sep 29, 2016 9:58 AMby John Purlia,This is where it may be model specific. I ran a fairly exhaustive set of tests with clean installs of Sierra, El Capitan, and Yosemite in one and two partition internal configurations, with four clean installs on external drives. With each configuration I would boot to a particular volume, then check to verify that each bootable volume showed up in Startup Disks. The only time a bootable volume failed to appear in Startup Disks was from Yosemite when Sierra was installed on volume one of the Fusion Drive.
To further prove this to myself, I unlinked the Fusion Drive (which I really don't advise!) so I could treat my internal drive as a plain old hard drive and an SSD. When I did so I was actually able to create 4 partitions (normally, 2 is the limit on a Fusion Drive), installing a different OS on each. Here, again, only when Sierra was on what the OS believed to be the first volume was Yosemite not able to "see" Sierra from Startup Disks — though it was able to see a second Sierra boot volume on another partition.
