[arch-general] Device or ressource busy

[arnaud gaboury]

Below is part of $ lsblk return:

-----------------------------------------
sdb                      sdb     8:16
├─sdb1                   sdb1    8:17  btrfs       poppy-root
└─sdb2                   sdb2    8:18
--------------------------------------------------

/dev/sdb2 has no filesystem yet, and is not mounted anywhere.

Now running this command:
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#  make-bcache --block 4k --bucket 2M -B /dev/sdd4 -C /dev/sdb2 --discard
Can't open dev /dev/sdb2: Device or resource busy
-----------------------------------------------------------

I can't find any reason for /dev/sdb2 to be busy.

Thank you for hint.

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