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DimaVR

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Original poster
Nov 14, 2017
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Two questions

I have c drive and d drive. One is SSD 128GB for OS and one is 2TB for data should I keep it like this? Or do you suggest I reinstall big sir with hybrid drive like it wasOEM? Also what’s the proper way to reinstall the OS and recreate it as one big partition? How do I make a bootable usb disk once I have MacOS 11 alk ready installed? It won’t let me download the installer again would it? If so how?

more maybe someone can help me before I reinstall. The ms edge browser does not want to open the icons just jumps in the task bar and the app never open? Under new profile it opens fine. Iworked with ms support but since it works with a new profile they refused to help me further! I do not have any anti guys mmsß.
Plesse help me fix edge so I can open the browser this way I don’t have to format my drive! I been installing beta on top of beta for 3 years now everything always works great but now edge browser won’t open after all of this, so maybe I have permissions error? I tried disk repair etc etc and no errors??
Thanks for all your help.

I know I can boot into recovery and say reinstall OS but I need to rebuild my hybrid drive and that will wipe the orations out and I won’t be able to reinstall th Mac OS 11 anymore after I do this that’s why I figured I need a bootable usb disk but have no idea how to make one after Big Sur is all ready installed.

thank you
 

SketchyClown

macrumors regular
To rebuild the Fusion Drive that came factory, you need to use the Terminal.

diskutil resetFusion

You don't need a USB installer, you can run this from the Recovery partition.

This will obviously erase both drives so make sure you have backed up what's important.

Good luck.
 

DimaVR

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Original poster
Nov 14, 2017
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To rebuild the Fusion Drive that came factory, you need to use the Terminal.

diskutil resetFusion

You don't need a USB installer, you can run this from the Recovery partition.

This will obviously erase both drives so make sure you have backed up what's important.

Good luck.

Doesn’t the rebuilding fusion drive erase the recovery partion also? Cause I have c and d drive right now 128GB for os and 2TB for data my understanding is if I run that it will wipe out everything and I won’t be able to do the reinstall unless I have USB stick??

yes I have time machine backup of my current os. Also one more question one I reinstall it on my fusion drive can I then restore my entire user account? And my data from both drive into one drive? I never used the migration assistant in MacOS so this is all new to me
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Also when you migrate the account from backup does it bring over all the. Bugs or issue you might have had before? Or only bring over days and apps and the profile stays as a fresh install?
 

Taz Mangus

macrumors 604
Mar 10, 2011
7,815
3,504
Doesn’t the rebuilding fusion drive erase the recovery partion also? Cause I have c and d drive right now 128GB for os and 2TB for data my understanding is if I run that it will wipe out everything and I won’t be able to do the reinstall unless I have USB stick??

Use Terminal to create a Fusion Drive again
These steps permanently delete all data stored on the drives that make up your Fusion Drive. Make sure that you have a backup before continuing.


yes I have time machine backup of my current os. Also one more question one I reinstall it on my fusion drive can I then restore my entire user account? And my data from both drive into one drive? I never used the migration assistant in MacOS so this is all new to me

Migration Assistant can restore the entire user account.

The Fusion drive is a single drive once the merge has completed. The Time Machine backup from your old fusion drive will look like it has backed up a single drive (e.g. Macintosh HD).
 

DimaVR

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Original poster
Nov 14, 2017
1,146
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Migration Assistant can restore the entire user account.

The Fusion drive is a single drive once the merge has completed. The Time Machine backup from your old fusion drive will look like it has backed up a single drive (e.g. Macintosh HD).

I separated the drives my self 2 years ago into os and data drive. So when I run to recreate these won’t it wipe out my recovery partion also?
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Cause it if wipes the data I won’t be able to reinstall Big Sur with out a usb drive and would have to do internet recovery and then update to Big Sur right? Or does it leave the recovery partion alone so I can reinstall the the OS??
 

SketchyClown

macrumors regular
I do believe the instructions are spelled out for you from Apple, if you'd click and read the support document.

If you're using macOS Mojave or later
  1. Turn on your Mac, then immediately press and hold Command-R to start up from macOS Recovery. Release the keys when you see the Apple logo or spinning globe.
  2. When you see the macOS Utilities window, choose Utilities > Terminal from the menu bar.
  3. Type diskutil resetFusion in the Terminal window, then press Return.
  4. Type Yes (with a capital Y) when prompted, then press Return.
  5. When Terminal indicates that the operation was successful, quit Terminal to return to the macOS Utilities window.
  6. Choose Reinstall macOS, then follow the onscreen instructions to reinstall the Mac operating system. Your Mac restarts from your Fusion Drive when done.
 

DimaVR

Suspended
Original poster
Nov 14, 2017
1,146
479
I do believe the instructions are spelled out for you from Apple, if you'd click and read the support document.

If you're using macOS Mojave or later
  1. Turn on your Mac, then immediately press and hold Command-R to start up from macOS Recovery. Release the keys when you see the Apple logo or spinning globe.
  2. When you see the macOS Utilities window, choose Utilities > Terminal from the menu bar.
  3. Type diskutil resetFusion in the Terminal window, then press Return.
  4. Type Yes (with a capital Y) when prompted, then press Return.
  5. When Terminal indicates that the operation was successful, quit Terminal to return to the macOS Utilities window.
  6. Choose Reinstall macOS, then follow the onscreen instructions to reinstall the Mac operating system. Your Mac restarts from your Fusion Drive when done.

I understand instruction and will do this this weekend coming up, I was just under assumption when you create fusion drive it wipes out the reinstall partion and you don’t be able to reinstall the os anymore since it format the drives you know
 
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