[SOLVED] HELP! Crucial MX300 not recognized for Master OS Install, but recognized as 2nd Disk from Caddy?

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Video_3

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Aug 29, 2016
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I went to Crucial's website to see their list of working SSD's for the MacBook Pro Late 2011. The MX300 275GB is listed.

I was worried that maybe my SSD was faulty but I loaded it into my CD-ROM Slot HDD Caddy and High Sierra sees my disk just fine.

It shows my regular CoreStorage Logical Volume (500gb Apple detault HDD) - non SSD, and it shows the 2nd storage device from the Caddy as SATA Internal Physical Volume. Is there any way I can trick my MacBook Pro to recognize the MX300 for a clean install in the main Logical SATA slot for Hard Drives?

I chose the Scheme of this SSD as GUID instead of Master Boot Record. Upon reading online I was told that GUID is the default choice. I hope I did this correct. Other than that, I also prepared it as Mac OSx Journaled Extended.

Also, should I now remove the MX300 from the CDROM Caddy and place it in the Macbook's master HDD slot and try it again?
 
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Hi Ken. Thanks for your input. Actually, I thought I had replied to my own thread before in finding the solution.

Here's what I did, and in trying my method, I strongly believe any SSD will work. So, without further a-do..

1.) The High Sierra USB install flash drive is practical.
2.) I inserted the MX300 into the caddy.
3.) One does not need to worry about File Utility in initial startup.
4.) Format the MX300 within High Sierra.
5.) SELECT APFS!! and Voila!!
6.) Remove the MX300 from the Caddy (or I guess those using External enclosures being the same...)
7.) Only the MX300 should be in the main Drive Bay for the MacBook Pro. Remove the original drive running High Sierra
8.) Upon the USB Install of High Sierra, it is now...
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V

Video_3

Commendable
Aug 29, 2016
8
0
1,520
Hi Ken. Thanks for your input. Actually, I thought I had replied to my own thread before in finding the solution.

Here's what I did, and in trying my method, I strongly believe any SSD will work. So, without further a-do..

1.) The High Sierra USB install flash drive is practical.
2.) I inserted the MX300 into the caddy.
3.) One does not need to worry about File Utility in initial startup.
4.) Format the MX300 within High Sierra.
5.) SELECT APFS!! and Voila!!
6.) Remove the MX300 from the Caddy (or I guess those using External enclosures being the same...)
7.) Only the MX300 should be in the main Drive Bay for the MacBook Pro. Remove the original drive running High Sierra
8.) Upon the USB Install of High Sierra, it is now recognized as a Volume for install!!
9.) Once High Sierra is installed on the MX300, one can then insert the original drive in the caddy and format it Macbook Pro's startup utility.
10.) Restart, and presto, everything is a go!

I apologize to Crucial or anyone having doubts for any SSD's currently in the market. I'm more than sure now that High Sierra and the new APFS format should be highly reliable. Of course I could've saved on a 120gb, but for the value I was happy that I got the MX300 275gb anyways.

Hope this helps others.


 
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