First question is why did you format, delete and partition the disk? Is this a new disk that you are intending to put in the My Cloud enclosure to replace the original My Cloud enclosure disk?
Because the image you posted indicates a P/N number that ends in “-00”. It would appear you have a FIRST generation single bay My Cloud unit. First generation single bay My Cloud units run the OS3 v4.x firmware not the OS5 v5.x firmware. The first generation My Cloud is end of support and considered a legacy product by WD.
Use the forum/subforum search feature to search the many discussions in the My Cloud OS3 subforum for how to replace the My Cloud hard drive, correctly partition and format it, and restore the v4.x operating system to it. There are many discussions in the OS3 subforum on how to “unbrick” a first gen My Cloud.
For example there are the following directions that some have used to restore their FIRST generation single bay My Cloud to working order.
Directions:
https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/Replace%20HDD%20-%20English.txt
Relevant files:
v3.04.01-230: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/Backups/original_v03.04.01-230.tar.gz
Or
v4.01.02-417: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/Backups/original_v04.01.02-417.tar.gz
https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/
Note that to properly unbrick/restore a hard drive to working order for use in a My Cloud enclosure takes some skill and knowledge. One may need to learn how to use Linux and the Linux command line. One may need to perform the “unbrick” or restore procedure several times before it “sticks” and works right. Do not change any of the partition values (mkdir steps) indicated in the directions. It is generally suggested to do a 40 second pin reset (or a My Cloud Dashboard System Only restore) after a successful unbrick or hard drive restore.
