---
name: "nvme-registry-update"
section: "1"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nvme-registry-update"
---

# nvme-registry-update(1)

Write an attribute to a controller's registry entry

## NAME

nvme-registry-update - Write an attribute to a controller's registry entry

## SYNOPSIS

```
nvme [<global-options>] registry update <device>
                        --attr=<ATTR> | -a <ATTR>
                        --value=<VAL> | -V <VAL>
```

## DESCRIPTION

Write an attribute to the ownership registry entry for an NVMe-oF controller. The registry is stored under /run/nvme/registry/ as one directory per live controller, with one plain-text file per attribute. The entry directory is created if it does not already exist.

The \<device\> is the NVMe controller name (e.g. nvme3), given as a positional argument; the /dev/ prefix is optional.

The *owner* attribute is normally recorded when the connection is created (e.g. by *nvme connect --owner*). Changing it by hand can stop an orchestrator from protecting the controller, so updating *owner* prompts for confirmation when run interactively; non-interactive callers (scripts) proceed without prompting. This is a guard against accidental mistakes, not access control — a user with root can edit the files under /run/nvme/registry/ directly.

Writes are atomic: a temporary file is written and synced, then renamed into place, preventing corruption under concurrent access.

## OPTIONS

- \-a \<ATTR\>, --attr=\<ATTR\>

  Attribute name to write (e.g. note, owner).

- \-V \<VAL\>, --value=\<VAL\>

  New attribute value.

## GLOBAL OPTIONS

The following options are defined at the top-level nvme command and are available to this subcommand:

- \--dry-run

  Print the command that would be executed, but do not actually execute it.

- \--no-ioctl-probing

  Disable probing for 64-bit IOCTL support.

- \--no-retries

  Disable retry logic on transient errors.

- \-o \<fmt\>, --output-format=\<fmt\>

  Set the reporting format to *normal*, *tabular, 'json*, or *binary*. Only one output format may be used at a time.

- \--output-format-version=\<version\>

  Select the output format version. Version *1* uses the original field naming, while version *2* (default) provides more consistent and script-friendly field names. Other versions are rejected.

- \--quiet

  Suppress informational messages. Errors are still reported, and --quiet cancels any --verbose for the library log level.

- \--set-options=\<key=value\>\[,\<key=value\>...\]

  Set libnvme library options for this invocation. Supported keys are *force-4k*, *mi-probe-enabled*, *test-base-dir* and *test-sysfs-dir*.

- \--timeout=\<ms\>

  Set the timeout for the command in milliseconds. *infinite* or *-1* waits without a time limit (0xffffffff).

- \-v, --verbose

  Increase the level of detail in the output. May be specified multiple times to further increase verbosity.

These options can also be set as machine-wide defaults in [nvme-cli.conf(5)](/nvme-cli.conf/5.md). A command-line flag always overrides the file.

## EXAMPLES

• Attach a free-form note to nvme3:

```
# nvme registry update nvme3 --attr note --value "maintenance 2026-07"
```

• Update a previously written note:

```
# nvme registry update nvme3 --attr note --value "released"
```

## SEE ALSO

[nvme-registry-list(1)](/nvme-registry-list/1.md) [nvme-registry-retrieve(1)](/nvme-registry-retrieve/1.md) [nvme-registry-delete(1)](/nvme-registry-delete/1.md) [nvme-disconnect-all(1)](/nvme-disconnect-all/1.md)

## NVME

Part of the nvme-user suite