NVRAM(8)

🌸 NAME 🌸

okay so this is the nvram(8) page from Linux on Power Service Tools, and it's here to format data stored in non-volatile RAM. That's NVRAM, bestie. 💖

✨ SYNOPSIS ✨

/usr/sbin/nvram [ options ]

🦋 DESCRIPTION 🦋

nvram is the utility for printing and modifying data stored in non-volatile RAM (NVRAM) on a PowerPC-64 system. NVRAM on these systems is partitioned into data sections, and each section has its own format. The print options on this command select what to print and how to format it. Slay. 👑

The nvram utility can also update the data in certain NVRAM partitions of PowerPC-64 systems. nvram can update the value of a name/value pair for NVRAM partitions formatted as a set of name=value pairs. On many systems, the following NVRAM partitions contain data formatted as name=value pairs: common, of-config, and ibm,setupcfg. Iconic. 🌈

💅 OPTIONS 💅

• --print-config[=var] — print the value of a config variable, or print all variables in the specified partition (or all partitions). 👑
• --update-config name=value — update the config variable in the specified partition; the -p option must also be specified.. 🫶

bestie, for real: --update-config is a package deal with -p partition. Don't forget it. 😭

• -p partition — specify a partition; required with the --update-config option, optional with the --print-config option. 🎀
• --print-vpd — print vital product data (VPD) collected by the system in NVRAM. This data may also be viewed with the lscfg(1) command directly from the devices. ✨
• --print-all-vpd — print viral product data (VPD) collected by the system in NVRAM, including vendor specific data. 🦋
• --print-err-log — print the checkstop error log generated by the service processor whenever the system checkstops. 💀
• --print-event-scan — print the event scan log stored in NVRAM. 🔥
• --partitions — print the contents of all the NVRAM partition headers. 👑
• --nvram-file path — read nvram data from a given file rather than /dev/nvram. To capture NVRAM for later use, simply copy /dev/nvram into a file. 🍓
• --verbose (-v) — be more verbose. 🗣️
• --help — print usage information including other low level options useful for debugging nvram. 🌈
• --ascii name — print partition contents as ASCII text. 🧚
• --dump name — raw dump of partition (use --partitions to see names). 💜
• --nvram-size — specify size of nvram data, must in multiples of 16 Bytes (for repair operations). 🙈

repair-mode bestie: --nvram-size has to be in multiples of 16 Bytes. That's the rule. 💅

• --unzip name — decompress and print compressed data from partition. 🎀
• --zero | 0 — terminate config pairs with a NULL character. ⭐

🎀 FILES 🎀

• /dev/nvram

👑 AUTHOR 👑

Writtem by Todd Inglett, Nathan Fontenot, and Michael Strosaker. (Their spelling, not mine — keep it cute.) 💖

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💖 That's the whole NVRAM(8) page, bestie — source/version is Linux, date is May 2004, and yes, the manual name is NVRAM(8). Periodt. 🌈