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mdadm -c does not set the mode and so cannot be first option

in flag

I am following the instruction here I am stuck at this line

mdadm –create /dev/md0 –level=1 –metadata=0.9 –raid-devices=2 /dev/sda1 /dev/sda2

I get the following error when I try to run it

mdadm: -c does not set mode, and so cannot be the first option.

Ps: in my case I have sda no sdc

hr flag
Did you copy-paste that command from somewhere? It looks like the dashes are [unicode en dashes](https://www.fileformat.info/info/unicode/char/2013/index.htm) not ordinary ASCII characters - try retyping them
Junior Cortenbach avatar
in flag
@steeldriver i have type this "-" caracther manuelly in the terminal. are there two diffrent characters that i have to type?
Junior Cortenbach avatar
in flag
@steeldriver yes you where right the "-" betweeen –raid-devices is not the same as the "–" in front of the word. Thank you very much for your help
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