NVME-RPMB-READ-CO(1)

💅 NVME-RPMB-READ-CONFIG, BESTIE EDITION ✨

okay so real talk — this is a page from the NVMe Manual, and it's all about nvme-rpmb-read-config. Buckle up, it's actually not that deep, I promise 🫶

🎀 NAME 🎀

nvme-rpmb-read-config — reads the RPMB device configuration block. that's it, that's the whole vibe ✨

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🌸 SYNOPSIS 🌸

nvme [<global-options>] rpmb read-config <device>
                        [--msgfile=<data-file> | -f <data-file>]

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🦋 DESCRIPTION 🦋

So what this does is it reads the 512 byte device configuration block from RPMB target 0 of the NVMe device. 512 bytes. one block. iconic behavior ngl 💅

If you don't pass --msgfile, you get a summary of the boot partition protection and lock state printed to STDOUT instead of the raw configuration block. so like, the readable version, no cap 😌

Now listen — the <device> parameter is mandatory and you must specify an NVMe character device (ex: /dev/nvme0). no device, no read. it's giving "non-negotiable" ✨

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🎀 OPTIONS 🎀

• -f <data-file>, --msgfile=<data-file> — the name of the file the read configuration block gets written to 📝 if you give it an existing file, the data is appended to it (not overwritten, so don't stress). if you don't give it one, a summary gets printed to STDOUT instead 💖

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👑 GLOBAL OPTIONS 👑

these are defined at the top-level nvme command and yup, they're available to this subcommand too:

• --dry-run — prints the command that would be executed, but does not actually execute it. all talk, no action, and honestly? valid 💅
• --no-ioctl-probing — disables probing for 64-bit IOCTL support 🛑
• --no-retries — disables retry logic on transient errors. one shot, no second chances 😭
• -o <fmt>, --output-format=<fmt> — sets the reporting format to normal, tabular, 'json, or binary. only one output format may be used at a time 🎀
• --output-format-version=<version> — selects the output format version. version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names. any other versions are rejected 💀
• --quiet — suppresses informational messages. errors are still reported, and --quiet cancels any --verbose for the library log level 🤫
• --set-options=<key=value>[,<key=value>...] — sets libnvme library options for this invocation. supported keys are force-4k, mi-probe-enabled, test-base-dir and test-sysfs-dir 🧚
• --timeout=<ms> — sets the timeout for the command in milliseconds. infinite or -1 waits without a time limit (0xffffffff). literally forever, iykyk ⏳
• -v, --verbose — increases the level of detail in the output. may be specified multiple times to further increase verbosity 🔥

also bestie, these options can be set as machine-wide defaults in nvme-cli.conf(5). a command-line flag always overrides the file. always. periodt 💅

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🌈 EXAMPLES 🌈

• read configuration data block into config.bin file:

# nvme rpmb read-config /dev/nvme0 -f config.bin

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⭐ NVME ⭐

part of the nvme-user suite 🫶

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that's the whole page, bestie — you're officially an RPMB configuration block reader 💖✨

NVMe · 10/30/2026 · NVME-RPMB-READ-CO(1) — mwah, go read some config blocks, you ate 🎀💅