January 19, 20215 yr I have an Asrock B450M Pro4 motherboard with a Ryzen 5 2600 cpu in it. The board sees the NVME on boot, but the NVME drives is not detected in Unraid. I'm currently running Unraid 6.9.0-rc2. I also tried 6.8.3 & it also didn't detect the drive. Any help is appreciated
January 20, 20215 yr Author I figured it out. I booted Unraid in UEFI mode and the NVME was detected. If I boot in BIOS mode the drive is detected but not available to be used for cache.
January 20, 20215 yr Community Expert It should also work with CSM boot, but it's failing to initialize: Jan 19 05:21:06 Tower kernel: nvme nvme0: I/O 25 QID 0 timeout, disable controller Jan 19 05:21:06 Tower kernel: nvme nvme0: Device shutdown incomplete; abort shutdown Jan 19 05:21:06 Tower kernel: nvme nvme0: Removing after probe failure status: -4
January 20, 20215 yr Author I found that if booting unraid in Bios mode the board detects the drive but Unraid doesn't. If booting Unraid in Uefi mode everything works fine & it detects everything
January 20, 20215 yr Community Expert Like mentioned it's not a question of being detected, it's being detected but it fails to initialize, NVMe also work using legacy boot, it could be a board issue, possibly just a BIOS issue, BIOS update might help.
January 20, 20215 yr Author The board has the latest bios update on it. If Unraid doesn’t boot in Uefi mode the nvme fails to initialize
January 20, 20215 yr Community Expert Correct, but it's not an Unraid problem, I've had servers booting non UEFI with NVMe devices without issues, but if with UEFI works just boot with that.
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