You did nothing wrong in your step, except that probably SN350 itself is the problem here.Hello everyone.
I am trying to upgrade the internal drive of a late 2013 Mac Pro (6.1). I have purchased a Western Digital Green 2TB (SN350) and an adapter from Sintech.
These are the data of my hardware:
Intel Xeon E5 12 cores
64Gb RAM
AMD Firepro D300 GPU
System firmware version: 430.140.2.0.0
OS Loader Version: 540.120.3~19
SMC version (system): 2.20f18
Mac OS Monterey 12.5.1 (21G83)
These are the steps I followed:
1. I have installed Monterey on an external USB drive
2. I have rebooted and replaced the original Apple SSD 256Gb with the WD Green + Sintech adapter
3. I have booted Monterey from the USB external drive.
4. The Mac Pro recognized the WD Green 2TB Drive in Disk Utility, I formatted it with Mac Os Extended (Journaled) mode.
5. I then rebooted to start the Monterey clean install from a USB stick, but the WD Green drive did not show up in Disk Utility. Had disappeared!
6. I rebooted again from the USB external drive to enter Disk Utility, but the WD Green 2TB drive did not appear.
7. I installed the WD drive. Green on a windows PC to check that the WD Green 2TB drive is working, and the drive is working properly.
8. I tried repeating the process using Mac OS MOjave, but the disk still doesn't show up in Disk Utility.
9. I have tried from Terminal with the command "diskutil list" and "diskutil list internal" and it does not detect it.
What can I do to get my Mac Pro to recognize the WD Green drive and continue with the installation?
Thank you very much for your help.
Try to check for firmware update from Windows PC first. If you got an update. Try to update. If there's none of it, try it this way :
1. Install your Monterey OS (not installer) to the external USB drive
2. Boot from that external
3. Open Disk Utility, and if you now can see the SN350, format it to APFS with a GUID Scheme
4. Download Carbon Copy Cloner or SuperDuper app
5. Use the app to Clone the OS from the external usb drive to the SN350
6. After the clone process completed, open Startup Disk option in System Preferences, choose the SN350 (internal disk) and hit restart.
7. If you able.to restart and boot to system, that's it. Use it that way.
in a case where the ssd itself has compatibility problem (some SSD firmware can't handle the three layer "partition-container-subsystem directory" used in BigSur & Monterey) , you might fail altogether in step. 5
Honestly, last WD drive i might ever recommend is SN550 (with firmware upgrade). The newer one tend to have quirk here and there, which would be hard to ironed out if you don't have second computer to trouble shoot. (Luckily i see that you got windows PC there)