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I mapped an image to a system, and used blockdev to make it readonly. But it failed.
[root@ceph0 mnt]# blockdev --setro /dev/rbd2 [root@ceph0 mnt]# blockdev --getro /dev/rbd2 0 It's on Centos6.4 with kernel 3.10.6 . Ceph 0.61.8 . Any idea? |
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