On Fri, Apr 10, 2015 at 2:38 PM, arnaud gaboury <arnaud.gaboury@xxxxxxxxx> wrote: > 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: > ------------------------------------------------------ > # 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. looking more carefully in /dev, I couldn't find any mapper or loop device be the culprite Running # mount | column -t did not show the device anywhere > > Thank you for hint. > > -- > > google.com/+arnaudgabourygabx -- google.com/+arnaudgabourygabx
