Hi all,
I'm unable to map a block device for an image that was created with exclusive-lock feature:
$ sudo rbd create foo --size 4096 --image-features=4 --image-format=2
$ sudo rbd map foo
rbd: sysfs write failed
rbd: map failed: (6) No such device or address
How do I map the image? I've tried locking an image before mapping it but I get the same result. If I omit the "--image-features=4" when creating the image then I can map it just fine.
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