2. reflash SAS controller from IR raid 1/10 mode to IT mode without raid. - download IT firmware from https://www.supermicro.com/wdl/driver/SAS/LSI/ - extract file and copy the files from the EFI folder to an USB stick - reboot your system and enter CTRL-C to enter your SAS boot firmware - select your controller ex SMC 2308-IR and press enter 3.
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