After Yosemite, numerous problems on Mac Mini with Custom Fusion Drive

I have installed OS X Yosemite on a Mac Mini with a "homemade" fusion drive. The update seems to have completed, although the following problems are evident:
Missing menu items from the menu bar, including the apple menu, notifications, time machine and others
Menu bar items return after booting non-apple software (MS Office, for instance), but disappear again once apple apps are running (App Store). You can mouse over these menus, even though their respective icons are not there, and access the content within the menus.
iTunes crashes upon launch; app store launches, but no content loads. Additionally, the app store menu item under the missing apple menu location, shows 4 software updates are available, but cannot load the app store content in order to access the updates.
Safari loads, but enters a continuous loop of "A problem occurred with this webpage so it was reloaded." Then, a application quit notification window appears, stating "Safari Web Content quit unexpectedly."
Lots of spinning beachball now that was not happening prior to update.
I've tried resetting the machine numerous times. Nothing seems to fix the problem(s)
The machine seems to recognize the fusion drive in system report, and all files are accessible in finder, so I don't think the fusion drive is the issue.
Any suggestions, pointers, fixes?

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HT5446 If I buy a mac mini with a fusion drive and add windows using boot camp, can I make the SSD function be dedicated to the windows partition?

If I buy a mac mini with a fusion drive and add windows using boot camp, can I make the SSD function be dedicated to the windows partition?

Additional information from Linc's post. Basically, only one additional partition can be added to a Fusion Drive and it resides on the HDD.
Do computers that come with a Fusion Drive support Boot Camp?
Yes. Use the Boot Camp Assistant to create a Windows partition and install Boot Camp. The Windows partition will exist on the hard disk drive, not the Flash drive, and is not part of Fusion Drive Logical Volume Group. 3TB Fusion Drive configurations need to update to OS X Mountain Lion v10.8.3 or later to install Windows 8. See iMac (27-inch, Late 2012): Boot Camp alert with 3T hard drive for more information.

Slow boot up on 2012 Mac mini with DIY fusion drive

Hello everyone, I bought a Mac mini (2012) 2 months ago with a stock 500GB HDD.
I added another SSD to make a DIY fusion drive, and everything is working fine, except that I'm experiencing a very slow boot up.
I have confirmed both by information from the OS and some tests with command line tools, that the fusion drive itself is a success and absolutely working fine.
The slow boot up happens on cold boot only (a reboot does not have such problem).
Symptom: the Mac mini is stuck on the gray blank screen for about 40 seconds, and then finally shows up the apple logo.
Everything after this is pretty fast and fine.
I have tried the following methods and none of them seems to help:
1. Go Preferences -> Startup Disk, select the Machintosh HD. (Suggested by Apple in the Fusion Drive FAQ)
2. Verify the whole disk along with the partition with Disk Utility.
3. Reset NVRAM by holding Command+Option+P+R during boot up.
4. Reset SCM/PMU.
Does anyone have an idea on the cause of my problem?
Best regards and thank you.

If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Step 1
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter "BOOT_TIME" (without the quotes) in the search box. Note the timestamps of those log messages, which refer to the times when the system was booted. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Select the messages logged after the boot, during the time something abnormal was happening. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V).
For example, if the problem is a slow startup taking three minutes, post the messages timestamped within three minutes after the boot time, not before. Please include the BOOT_TIME message at the beginning of the log extract.
If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Anonymize before posting.
Step 2
Still in Console, look under System Diagnostic Reports for crash or panic logs, and post the entire contents of the most recent one, if any. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if present (it may not be.) Please don’t post shutdownStall, spin, or hang logs — they're very long and not helpful.

I have a 2012 Mini with a fusion drive that won't boot from a usb cloned drive. It came with 10.8.2 pre installed. I have zapped the PRAM and reset the SMC. Any thoughts?

I have a 2012 Mini with a fusion drive that won't boot from a usb cloned drive. It came with 10.8.2 pre installed. I have zapped the PRAM and reset the SMC. Any thoughts?

When I tried using a recently downloaded (from the App store) version of MtLion 10.8.2 (12C60) I could NOT get the new MacMini to install or boot from a USB I had previously made. I was however able to use the Recovery Mode of the MacMini to create a bootable SSD which I had installed. The problem arose when I went back into Recovery DU as it saw the seperate drives (SSD & HD) as a broken Fusion Drive. Interestingly DU from the boot volume had NO issues and reported NO faults. It was the Recovery DU that identified the faulty Fusion Drive configuration. At this point I am definately out of my depth but my speculation is that the Recovery Volume is being used in some fashion to form the method or pattern that DU assigns files to the drives, System Report sees the drives as seperate volumes with all their individual characteristics.
Disk Utility did not make a bootable USB, I don't have or use CCC or Super Duper.
Here is the longer version I've been compiling:
Having bought a late 2012 Mac Mini(6,2) i7 2.66GHZ with the standard 1TB 5400 HD and 4GB of RAM (base model) I immediately decided to install a Mercury Elite 6g 240GB SSD and up the RAM to 16GB. I received both shipments on the same day and had all my new toys in front of me. After following the video advice on OWC’s website for the installation of the second drive I started the mini and formatted the SSD to accept the OS from Recovery on the original HD. This MacMini shipped with 10.8.2 (12C2034) as the OS, the normal build of 10.8.2 is (12C60). Having used Recovery Disk Utility to format the SSD it came back with an error that DU could’t Repair. I went ahead and installed the OS on the SSD and the Mini booted normally from both drives. The issue I encountered with this setup was that iMovie encountered an “unexpected error” and would not save a completed project. I therefore decided to figure the drive issue out because I suspect the new Fusion File Management software didn’t like my configuration with drives that Recovery DU saw as needing to be “fixed”. After spending some time on the phone with both OWC and Apple Support I took the plunge and used Internet Recovery Disk Utility and allowed both drives to be “fixed” after which DU created a Fusion Drive (Logical Drive) that I then ran Repair Disk on and it showed up as a single drive in DU. It works perfectly as described by Apple’s site:
http://support.apple.com/kb/HT5446
Having checked the Link Speed and Negotiated Speed they both show as 6g so I’m pleased not to have lost performance due to it being fuzed to a 3g 5400 drive. The biggest drawback is that Apple’s Fusion Management only allows for 1 additional partition and I would have preferred more than that.
I have sourced some additional information here:
http://blog.macsales.com/15619-special-note-for-adding-an-ssd-to-a-2012-mac-mini ?
http://blog.macsales.com/15619-special-note-for-adding-an-ssd-to-a-2012-mac-mini ?
http://blog.macsales.com/15619-special-note-for-adding-an-ssd-to-a-2012-mac-mini ?
http://blog.fosketts.net/2011/08/05/undocumented-corestorage-commands/
If anyone has a factory Fusion Drive could you please post the Link and Negotiated Speeds of both drives? This information can be found in Apple > About This Mac > More Info… > System Report > Serial ATA and the drives should show up as discrete drives with their info listed separately.

Install snow leopard on mac mini with broken DVD Drive

I want to upgrade the OS on my mac mini but the hard drive keeps kicking out the disk - I read that I "might" be able to fix this by using a DVD cleaner but I am not overly optimistic about this fix. I have an external USB drive and a Windows PC to work with so I am wondering if I can use the DVD drive of the PC to copy the install disks to the external drive and then perform the instal from the external drive. I have been reading posts and can find advice on how to copy the Leopard install discs using another Mac or by using the remote disk feature - but since I don't have another Mac, these are not currently options.
Thanks

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Mac OS X client and Mac OS X Server both offer software-based RAID-1 capabilities.
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And for completeness, stay away from RAID-5; it has rotten failure modes, and it's getting more and more unreliable as the disk capacities increase. The likelihood of a secondary and catastrophic failure during a RAID rebuild increases with the capacity of the disks involved. (And you don't have enough disks to consider RAID-5 here anyway, but it's fairly common with out-board RAID.)
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May

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Secondly, 10.6 won't work on G4s.
Third, machines older than 4 years, may need a PRAM battery replaced for their optical drive to work again.
If the PRAM battery is not the problem, then you may need to find a safe cleaner for the drive.
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I have an early Mac mini with a combo drive, 1Gig memory and 80Gig hard drive. Can I replace my memory chip with a 2Gig?

I know Apple doesn't like us to crack the case, but if I want to upgrade to mavericks, I need 2Gig memory. I have plenty of available space on my hard drive.

First if you have not already done so, check to see if your Mac Mini model meets the requirements...?
see > Apple - OS X Mavericks - Read the technical specifications.
Then for RAM, go to > Memory, Drives, Free Installation Guides for Apple Mac mini and select your model.
In addition to the OWC guides, go to > Mac Mini Repair - iFixit, again select your model and click on the RAM guide.

Can mac mini mid2011 support fusion drives?

I have installed 2 drives a SSD for my apps and all programs and the original HDD that came with the mini to use as a media drive. can the Mac mini support fusion drive if so, anyone knows where I can get info on how to make both drives into a singel fusion drive

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Here's a link to give you the steps of how to create one.

Problem importing from 64 GB Lexar USB card in LR4 on Mac Mini with external hard drive.

Initiated import after deselecting some images. Import was super quick and I was suspicious as the stick had over 40GB of images. Progress bar indicated completed import. Later when I went to process images the Library module indicated that the files were "missing". Eventually I noted that the images were still listed as on the USB stick and had not been imported - though it seems they were imported into the catalogue and listed there with the thumbnails. Luckily I had not erased the USB stick. How do I avoid a repetition of this scenario? What should I do to complete the import? Should I delete the original and delete from Catalogue and start over again? This happened once before and I lost some good images when the progress bar erroneously (?) indicated completed import. Obviously I did something wrong.

As Rikk Flohr has already suggested, you must have selected <Add> (in the top center of the Import Dialog - although in Lr 4.3 this option is not any more available when importing from card).
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<Move> is for importing images that are already on the hard drive and you do want to change their location.
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For more on re-linking missing images / folders see here:
http://www.computer-darkroom.com/lr2_find_folder/find-folder.htm
http://tv.adobe.com/watch/creative-suite-podcast-photographers/lightroom-dude-where-are-my -photos/
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This was a concern expressed in this thread: Worrying reply to Apples FAQ on new Fusion Drive
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- Mac Mini connected wireless.
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Welcome to the Apple Community.
Try the following steps, check whether things are working after each step where appropriate, before trying the next.
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Restart the Apple TV by removing ALL the cables for 30 seconds.
Restart your router. (Also try removing it’s power cord for at least 30 seconds)
Restart your mobile device.
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After Yosemite, numerous problems on Mac Mini with Custom Fusion Drive

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