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alecmac1501

macrumors newbie
Original poster
Apr 2, 2024
6
1
after formating usb with ( mac os extended journaled ) and scheme with ( Guid patition map ) and big sur installer downloaded , I want to select the usb to create macos usb installer but I get ( NO DISKS FOUND )

PS: I tried many usb's
I read time ago that I have to chang usb name to something but I forgot it

any help?
 

alecmac1501

macrumors newbie
Original poster
Apr 2, 2024
6
1
thank you for replay, but I know this tutorial 100% but when I want to choose the usb he does not see usb and get NO DISKS FOUND , while usb is shown up in desktop and in the disk utility !!!
 

alecmac1501

macrumors newbie
Original poster
Apr 2, 2024
6
1
I am sure that I have to change the usb name to something like ( MacOS X Base System or ........ ) something like that.
it is very simple and I used it in the past before many times with succes but I forgot it 😔😔😔
 

Bigwaff

Contributor
Sep 20, 2013
2,024
1,323
Did OCLP app format your USB or did you? If you did format, you did it wrong.
 
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DeltaMac

macrumors G5
Jul 30, 2003
13,510
4,422
Delaware
There would be no requirement to rename your USB drive. (the MacOS Base System name is used by the recovery system, so, in any case, would not be one that you would choose.)
Of course, you can name a drive that you have erased -- anything you like. The task of making the bootable USB installer will name it again, so whatever name you choose will ultimately be replaced. And, you can always name it something else, after you create the bootable installer. (I use a name on bootable installers made of special characters and accents, so I have no confusion about the drive when it appears in the middle of some other drives that might have multiple mounted partitions - just something that I do

But, when you have erased the drive, try ejecting that new disk after the format is complete, unplug it from your Mac, then reinsert for a fresh mount. That should help you.
 

alecmac1501

macrumors newbie
Original poster
Apr 2, 2024
6
1
( Bigwaff ) I work more than 20 years in pc and macs repaire and installation and I know how to formate disks in windows and in mac.
( DeltaMac ) I have to change usb name ONLY to be shown up in OCLP to choos it , but when the progress begin the name will ultimately be replaced again with success..
 
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steve123

macrumors 65816
Aug 26, 2007
1,018
595
Yeah, there is some weirdness going in. I have a Mac Mini 7,1 that does something like this. I cannot get the USB drive with the installer to appear in the boot picker. In fact, I have a hard time getting the boot picker to work. I am wondering if it is a USB power issue or maybe some kind of conflict with another usb device or maybe the EFI and/or firmware is messed up.
 

alecmac1501

macrumors newbie
Original poster
Apr 2, 2024
6
1
I AM IN THE FIRST STEP :in my case I cannot put the big sur installer app or any other system on the usb because OCLP cannot see the correct formated usb and give ( NO DISKS FOUND ) , while usb is shown up in desktop and in the disk utility !!!
 

steve123

macrumors 65816
Aug 26, 2007
1,018
595
Is your USB disk partitioned? OCLP will not install on a partition. You must use the installer in the bundle to install to a partition.
 

DeltaMac

macrumors G5
Jul 30, 2003
13,510
4,422
Delaware
I already tried, but without success
What part was not successful?
First, were you able to create the bootable installer?
Then, you also need to follow the steps to modify the EFI partition (which is what you do if the OCLP, then Build and Install OpenCore.
Finally, you have to choose the EFI partition first when you boot to your bootable installer, THEN (and only then) you will see the installer partition correctly to continue with the boot. (Remember, you are booting to a version of macOS that is NOT compatible with your Mac. When you see the bootpicker screen, you have to choose the EFI partition first, as that forces your Mac to boot from the installer that you have decided to use to upgrade your older Mac...)
Is that different from what you see on your own Mac?
 

Gershwin

macrumors newbie
Jul 14, 2023
1
0
I'm experiencing the exact same issue as alecmac1501.

OCP (I've tried all versions from 1.5.0 back to 1.3.0) is showing "No disks found" when attempting to create an install disk from the "Create macOS installer" menu.

However, if for the sake of testing I try to "Build and Install Opencore" and select "install to disk," the USB drive is shown in the list of disk options.

So, the USB drive is not at fault, the "Create macOS installer" function is.
 
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