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Chapter 14. Map a Block Device

Use rbd to map an image name to a kernel module. You must specify the image name, the pool name and the user name. rbd will load RBD kernel module on your behalf if it’s not already loaded.

To do so, execute the following:

sudo rbd map {image-name} --pool {pool-name} --id {user-name}

sudo rbd map {image-name} --pool {pool-name} --id {user-name}

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For example:

sudo rbd map --pool rbd myimage --id admin

sudo rbd map --pool rbd myimage --id admin

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If you use cephx authentication, you must also specify a secret. It may come from a keyring or a file containing the secret.

To do so, execute the following:

sudo rbd map --pool rbd myimage --id admin --keyring /path/to/keyring
sudo rbd map --pool rbd myimage --id admin --keyfile /path/to/file

sudo rbd map --pool rbd myimage --id admin --keyring /path/to/keyring
sudo rbd map --pool rbd myimage --id admin --keyfile /path/to/file

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Chapter 14. Map a Block Device

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