Avid Pro Audio Community

Avid Pro Audio Community

How to Join & Post  •  Community Terms of Use  •  Help Us Help You

Knowledge Base Search  •  Community Search  •  Learn & Support


Avid Home Page

Go Back   Avid Pro Audio Community > Pro Tools Software > macOS

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-15-2018, 01:50 AM
jsbach jsbach is offline
Member
 
Join Date: Dec 2014
Location: US
Posts: 112
Default APFS and Mountain Lion Error

I mainly use Pro Tools 2018 and High Sierra (10.13.3) with my main SSD drive running on a 2010 Mac Pro.

Occasionally I need to open an older Pro Tools 10 session. In those cases, I switch to a separate internal drive running Mountain Lion (10.8.5)

Whenever I switch to the 10.8.5 drive, I receive an error regarding my SSD drive: "the disk you inserted was not readable by this computer"

I'm assuming this error occurs because Mountain Lion cannot read APFS. I usually just ignore the error.

Can this do any damage to my SSD? Is there any safer way to switch over to the Mountain Lion drive? Is there a "proper" way to do it?

I can't seem to find any solutions.
Reply With Quote
  #2  
Old 08-15-2018, 03:39 AM
Sardi Sardi is offline
Member
 
Join Date: Aug 2002
Location: Perth
Posts: 2,989
Default Re: APFS and Mountain Lion Error

Nothing will happen to it. You can’t damage it.

You can however accidentally erase or partition it. Be careful.


Sent from my iPhone using Tapatalk
Reply With Quote
  #3  
Old 08-15-2018, 04:37 AM
jsbach jsbach is offline
Member
 
Join Date: Dec 2014
Location: US
Posts: 112
Default Re: APFS and Mountain Lion Error

Quote:
Originally Posted by Sardi View Post
Nothing will happen to it. You can’t damage it.

You can however accidentally erase or partition it. Be careful.


Sent from my iPhone using Tapatalk
Thanks, Sardi!

That makes me feel better.

The dialogue box gives 3 options:
1. Initialize...
2. Ignore
3. Eject

I always choose 'Ignore'
Is that the safest/best option?

When you say, "Be careful" - I'm assuming you mean to avoid selecting "Initialize"
That is the option that could lead to the SSD getting erased, correct? Any other pitfalls I should be aware of?
Reply With Quote
  #4  
Old 08-15-2018, 05:01 AM
Sardi Sardi is offline
Member
 
Join Date: Aug 2002
Location: Perth
Posts: 2,989
Default Re: APFS and Mountain Lion Error

Yep. That’s what I meant.

I’d choose ignore as well. Eject would also do the job.

It might be worth doing some Googling and seeing if anyone has written a script or utility that hides unformatted drives so that you can’t accidentally initialise/format your drive.


Sent from my iPhone using Tapatalk
Reply With Quote
  #5  
Old 08-15-2018, 05:46 AM
jsbach jsbach is offline
Member
 
Join Date: Dec 2014
Location: US
Posts: 112
Default Re: APFS and Mountain Lion Error

Quote:
Originally Posted by Sardi View Post
Yep. That’s what I meant.

I’d choose ignore as well. Eject would also do the job.

It might be worth doing some Googling and seeing if anyone has written a script or utility that hides unformatted drives so that you can’t accidentally initialise/format your drive.


Sent from my iPhone using Tapatalk
I've had no luck finding a script, but I will take another look and report back if I find anything useful. Strangely, I haven't really seen much talk about the issue at all.

Thanks again for giving me some peace of mind!
Reply With Quote
  #6  
Old 08-13-2021, 05:29 PM
basslik's Avatar
basslik basslik is offline
Member
 
Join Date: Dec 2007
Location: Phoenix, Arizona
Posts: 2,010
Default Re: APFS and Mountain Lion Error

Quote:
Originally Posted by jsbach View Post
I mainly use Pro Tools 2018 and High Sierra (10.13.3) with my main SSD drive running on a 2010 Mac Pro.

Occasionally I need to open an older Pro Tools 10 session. In those cases, I switch to a separate internal drive running Mountain Lion (10.8.5)

Whenever I switch to the 10.8.5 drive, I receive an error regarding my SSD drive: "the disk you inserted was not readable by this computer"

I'm assuming this error occurs because Mountain Lion cannot read APFS. I usually just ignore the error.

Can this do any damage to my SSD? Is there any safer way to switch over to the Mountain Lion drive? Is there a "proper" way to do it?

I can't seem to find any solutions.
Just curious jsbach, years later. I seen you have the 2010 Mac Pro like myself. I use Open Core which allows you to switch back and forth between Mt. Lion or Big Sur.
__________________
MAC PRO 2010 5,1 3.46hex 128ram - MONTEREY 12.7.3 - PT 2023.12 / 003 RACK SIGNATURE MOD / DIGIMAX FS / PCM90 2CHANNEL SPDIF

Reply With Quote
  #7  
Old 08-13-2021, 05:38 PM
JFreak's Avatar
JFreak JFreak is offline
Moderator
 
Join Date: Jan 2003
Location: Tampere, Finland
Posts: 24,853
Default Re: APFS and Mountain Lion Error

Just curious why this old thread was resurrected, but in short:
  • APFS was introduced in High Sierra
  • Some computers were not able to install/boot until Mojave
  • If you have APFS drive and have it connected on older system such as Sierra it will not show
  • The connected drive however can be formatted to HFS even if it is not accessible on Finder
  • So that is why you need to be careful on Sierra and earlier
__________________
Janne
What we do in life, echoes in eternity.
Reply With Quote
  #8  
Old 08-13-2021, 06:29 PM
basslik's Avatar
basslik basslik is offline
Member
 
Join Date: Dec 2007
Location: Phoenix, Arizona
Posts: 2,010
Default Re: APFS and Mountain Lion Error

I was researching on how folks are doing with Open Core running Mt. Lion while switching back to newer OS versions. I'm aware Sierra is still HPS though. Actually you can boot into ancient Mac OS.
  1. Boot screen (via GOP for unflashed card, including some Nvidia card)
  2. Firmware protection (to run Windows in EFI mode without risking the cMP bootROM)
  3. HWAccel (H264 / HEVC hardware decode + encode in Mojave and newer macOS up to Big Sur 11.2.3)
  4. ability to watch DRM streaming content (Mojave and newer macOS up to Big Sur 11.2.3)
  5. Boot picker (only support EFI systems, tested with Apple wired keyboard, Magic Mouse, and Magic Keyboard, 10s timeout. If you can't see this. Just don't touch the keyboard, and your cMP should continue to boot to desktop)
  6. NVMe and SATA drives on PCIe card show up as internal
  7. Support for Apple USB SuperDrive
  8. TRIM (regardless trimforce status)
  9. Ability to run non-GUI 32bit software in Catalina
  10. Ability to reset NVRAM in boot picker (disabled at this moment to align with the native Apple boot manager)
  11. Ability to run any natively supported ancient OSX with modern graphic card e.g. Radeon VII in 10.6.8 (only can display, no acceleration) [Update 5th May 2020: Sierra and High Sierra may not fully supported yet. Thanks for pierrox's report]
  12. Ability to boot Catalina / Big Sur Recovery Partition
  13. Sleep should work (tested on my cMP, but I can't guarantee it also work with your hardware)
  14. Possible to run 8x32GB RAM in macOS (user need to mod the config.plist manually. Replace the false below CustomMemory to true)
  15. Video acceleration is very cool.
__________________
MAC PRO 2010 5,1 3.46hex 128ram - MONTEREY 12.7.3 - PT 2023.12 / 003 RACK SIGNATURE MOD / DIGIMAX FS / PCM90 2CHANNEL SPDIF

Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Artist Control Display error with OSX Mountain Lion bg_isagenix Artist Series 5 10-01-2015 01:58 PM
Lion to mountain lion upgrade file needed, anyone? Audioartist macOS 0 09-26-2015 08:46 AM
Mountain Lion / DAE 720 error topazuk Pro Tools M-Powered (Mac) 2 12-25-2013 06:08 AM
Impossible to start Pro Tools on MacPro after downgrade Mountain Lion back to LION DESVED Pro Tools HDX & HD Native Systems (Mac) 2 05-21-2013 03:18 PM
Registry Error on Mountain Lion 2hip2b4real macOS 7 12-24-2012 10:11 PM


All times are GMT -7. The time now is 02:02 AM.


Powered by: vBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Limited. Forum Hosted By: URLJet.com