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First time using Unraid : Cannot access your USB Flash boot device

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Hi, I saw already some topics about this problem but i am a beginner and didn't understand the previous anwsers, sorry for that.

I just finish to mount all my NAS componants in my case today, all seems to work fine, I change few parameters in the bios to boot on my usb key.

 

I flash my usb key with UNRAID OS, then i plug it to the motherboard of the nas.

The os version is 6.12.14 2024-11-26 ( I assume it the trial version since i havn't pay yet)

 

Once on my computer i saw a warning "Cannot access your USB Flash boot device" and "There is a physical problem accessing your USB Flash boot device" i do not understand why. could you help me ?

This is a new usb key that i bought specialy for unraid. It is a Samsung USB BAR PLUS.

Do you have an explanation ? what should i do ?

 

 

  • Community Expert

Put flash in PC and checkdisk. 

 

Try booting from USB2 port. More reliable and speed is not important for this.

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