Virsh attach-disk: Difference between revisions
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The command requires at minimum the file-based storage volume path, as shown by the [[virsh vol-list]] command, and the device name under which the disk is exposed to guest, typically "vdX", where X is "a", "b", etc. | The command requires at minimum the file-based storage volume path, as shown by the [[virsh vol-list]] command, and the device name under which the disk is exposed to guest, typically "vdX", where X is "a", "b", etc. | ||
virsh attach-disk <''vm-name''> <'' | virsh attach-disk <''vm-name''> <''storage-volume-path''> <''target-device-name''> --config | ||
A target device name that is available can be obtained by running [[lsblk]] on the virtual machine in question: | |||
virsh attach-disk testvm-01 /main-storage-pool/test-volume vdb --config | virsh attach-disk testvm-01 /main-storage-pool/test-volume vdb --config | ||
virsh attach-disk build-guest /main-storage-pool/build-guest-xfs-experiments.raw vdb --config | |||
virsh will detect malformed device names and will error out if that is the case. | virsh will detect malformed device names and will error out if that is the case. | ||
= | ===--config=== | ||
Will affect the next boot. | |||
Latest revision as of 18:23, 19 February 2018
Internal
Overview
Examples
Attaching a File-Based Storage Volume
Shut down the guest before attaching the disk. Note that is also possible to add the device while the guest is running, see virsh man page for more details.
Provision the storage volume as described here: virsh vol-create-as.
The command requires at minimum the file-based storage volume path, as shown by the virsh vol-list command, and the device name under which the disk is exposed to guest, typically "vdX", where X is "a", "b", etc.
virsh attach-disk <vm-name> <storage-volume-path> <target-device-name> --config
A target device name that is available can be obtained by running lsblk on the virtual machine in question:
virsh attach-disk testvm-01 /main-storage-pool/test-volume vdb --config virsh attach-disk build-guest /main-storage-pool/build-guest-xfs-experiments.raw vdb --config
virsh will detect malformed device names and will error out if that is the case.
--config
Will affect the next boot.