SMBIOS-TYPE-11(7)

💖 SMBIOS-TYPE-11 💖

okay bestie, welcome to smbios-type-11(7) — literally the manual for SMBIOS Type 11 strings 🦋 pull up a chair, this one's short but it's got range

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✨ NAME ✨

smbios-type-11 — SMBIOS Type 11 strings, no cap

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🌸 SYNOPSIS 🌸

/sys/firmware/dmi/entries/11-*/raw

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💅 DESCRIPTION 💅

so here's the tea 🫖 — a bunch of OS components go and process SMBIOS Type 11 vendor strings. Who sets them? A virtual machine manager (VMM) 💁♀️ and a virtual machine (VM) just… receives them. iconic behavior.

these strings can lowkey play a similar role to kernel-command-line(7) parameters, BUT — and this is the important part — they're generally under the control of the VMM, not the boot loader and not the UKI. so like, different main character, different rules 👑

if you want the actual deep lore on SMBIOS Type 11, go read the System Management BIOS[1] specifications. that's the source material fr fr.

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🎀 STRINGS 🎀

here's the whole lineup, the following strings are supported:

• io.systemd.credential:CREDENTIAL=VALUE, io.systemd.credential.binary:CREDENTIAL=VALUE — this one lets you pass extra system credentials into the system 💌 and you can do it in textual form, or in binary (Base64) form. for the full details go look at systemd.exec(5) and System and Service Credentials[2].

Added in version 252.

• io.systemd.stub.kernel-cmdline-extra=CMDLINE — this lets you configure extra kernel command line options, and it's read by the kernel UEFI stub 👀 details live in systemd-stub(7).

Added in version 254.

• io.systemd.boot.kernel-cmdline-extra=CMDLINE — same energy, but for Boot Loader Specification Type 1 entries 🌈 and this one is read by systemd-boot. details in systemd-boot(7).

Added in version 256.

• io.systemd.boot-entries.extra:ID=DEFINITION — this one lets you insert additional entries into the systemd-boot menu 😌 very "let me add a little something" of it. details in systemd-boot(7).

Added in version 258.

• io.systemd.boot.loglevel=LEVEL — configure the log level with this one 📝 it's read by both systemd-boot and systemd-stub. details in systemd-boot(7) and systemd-stub(7).

Added in version 259.

• io.systemd.boot.timeout=TIMEOUT — this sets the menu timeout, in seconds ⏳ and it's read by systemd-boot. details in systemd-boot(7).

Added in version 260.

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🔥 SEE ALSO 🔥

systemd(1), kernel-command-line(7), systemd.system-credentials(7)

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🧚 NOTES 🧚

1. System Management BIOS https://www.dmtf.org/standards/smbios/
2. System and Service Credentials https://systemd.io/CREDENTIALS

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reminder bestie: this page is SMBIOS-TYPE-11(7) from systemd 262.1 💜 so if your system says something else, that's your version talking, not me 🙈

okay that's the whole thing, you ate it, go forth and read your firmware strings ✨🎀🦋 periodt 💅