LSMTD(8)

💖 LSMTD — the mtd-utils girlies' guide to listing memory technology devices 💖

okay so this is lsmtd(8) from the System Manager's Manual and bestie it's SO much simpler than it looks. it lives in section 8 of the manual (that's the sysadmin section, iykyk) and it's literally just "tell me about my MTD and UBI devices". we're gonna get through this together 🫶

✨ NAME ✨

lsmtd — list memory technology devices 🌸

📜 SYNOPSIS 📜

lsmtd [options] [device...]

💅 DESCRIPTION 💅

lsmtd lists info about all available MTD and UBI devices, or just the ones you name. the way it works is: lsmtd reads the sysfs filesystem to gather its info. and if sysfs isn't available? no worries bestie, it falls back to the procfs filesystem and ioctl interfaces instead. adaptable queen 👑

by default the command prints all MTD and UBI devices in a pretty-printed list format. very demure, very mindful.

ok but listen — the default output is subject to change. so whenever possible, avoid using default outputs in your scripts, fr fr. always explicitly define expected columns by using --output columns-list in environments where a stable output is required. protect your scripts, protect your peace 🎀

use lsmtd --help to get a list of all available columns. that's your cheat sheet.

👑 OPTIONS 👑

• -b, --bytes — print columns with size quantities (like erase block size) in bytes instead of a human-readable format. numbers, numbers, numbers 🔢
• -h, --help — display a help text and exit. the classic escape hatch.
• -i, --ascii — only use ascii characters for pretty printing. for when the fancy box-drawing characters aren't it 🥲
• -J, --json — use JSON output format. all potentially unsafe characters in string values are escaped with JSON escape sequences or hex-escaped (\u<code>). machine-readable slay ✨
• -l, --list — use a pretty-printed list output format. this is the default, so it's the main character 👑
• -m, --no-ubi — do not display information about UBI devices or volumes. MTD only, no UBI energy.
• -n, --noheadings — do not print column headings when using raw or list output format. headers? never heard of her.
• -o, --output list — specify which output columns to print. use --help to get a list of all supported columns.
  • the default list of columns may be extended if list is specified in the format +list (e.g. lsmtd -o +EB-SIZE). the plus sign is doing the heavy lifting there 💅
• -O, --output-all — output all available columns. give me EVERYTHING 😤
• -P, --pairs — produce output in the form of key="value" pairs. all potentially unsafe characters are hex-escaped (\x<code>).
• -r, --raw — produce output in raw format. all potentially unsafe characters are hex-escaped (\x<code>).
• -u, --si-units — display human readable sizes as powers of ten rather than powers of two. metric units, metric mindset 🌈
• -V, --version — print version information and exit.
• -x, --sort column — sort output lines by column. organize, bestie 📚

📝 NOTES 📝

if the --bytes option is not specified, the JSON output format prints sizes as string values even if they do not have a suffix. yes, even then. that's just how it is 🫠

🫶 AUTHORS 🫶

David Oberhollenzer <david.oberhollenzer@sigma-star.at>

🐛 REPORTING BUGS 🐛

report mtd-utils bugs to the Linux mtd mailing list.

• Linux mtd mailing list: <linux-mtd@lists.infradead.org>
• Linux mtd home page: <http://www.linux-mtd.infradead.org/>

📦 AVAILABILITY 📦

the lsmtd command is part of the mtd-utils package and is available from ftp://ftp.infradead.org/pub/mtd-utils/.

⚖️ COPYRIGHT ⚖️

Copyright © 2017 David Oberhollenzer - sigma star gmbh

License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl2.html>.

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law. no cap, zero warranty, read it and weep 😭

👀 SEE ALSO 👀

lsblk(8), ls(1)

and that's the whole page bestie!! 💖 this was mtd-utils, dated April 2017, and the page is LSMTD(8). go forth and list your memory technology devices, you absolute icon 🦋✨