DUMPIMAGE(1)

💖 DUMPIMAGE(1) 💖

okay bestie, welcome to the General Commands Manual page for dumpimage — yes the all-caps title is giving very dramatic but that's just how manpages do 💅

✨ NAME ✨

dumpimage — extract data from U-Boot images 🫶

🌸 SYNOPSIS 🌸

dumpimage [-T type] -l image

dumpimage [-T type] [-p position] -o outfile image

dumpimage -h

dumpimage -V

🦋 DESCRIPTION 🦋

so dumpimage is the girl who lists and extracts data from U-Boot images, no cap ✨

if -l is specified, dumpimage lists the components in image. otherwise (aka the default main character behaviour), dumpimage extracts the component at position to outfile. that's it, that's the whole vibe 🎀

👑 OPTIONS 👑

• -h — print usage information and exit. short and sweet, she said what she said 💅
• -l — print the header information for image, including a list of components. literally the "show me everything" option 🔥
• -o outfile — the file to write the dumped component to. where the goods go 📦
• -p position — specify the position of the component to dump. this should be a numeric index, starting at 0. if you don't specify it, the default position is 0. zero-indexed girlies stay winning 🍓
• -T type — specify the type of the image. if you don't specify it, the image type will be automatically detected (she's psychic, lowkey 🔮). a list of supported image types may be printed by running mkimage -T list.
• -V — print version information and exit. the classic "who even am I" check ⭐

💀 BUGS 💀

please report bugs to the U-Boot bug tracker. not me being the messenger but like, fr fr, tell them 🙈

🌈 EXAMPLES 🌈

create a multi-file image and then extract part of that image 🧚

$ mkimage -A x86 -O linux -T multi -n x86 \
    -d vmlinuz:initrd.img:System.map multi.img
Image Name:   x86
Created:      Thu Jul 25 10:29:13 2013
Image Type:   Intel x86 Linux Multi-File Image (gzip compressed)
Data Size:    13722956 Bytes = 13401.32 kB = 13.09 MB
Load Address: 00000000
Entry Point:  00000000
Contents:
   Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB
   Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB
   Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB
$ dumpimage -p 2 -o System.map multi.img

look at that — -p 2 snatches the third component and drops it into System.map. ate and left no crumbs 💅✨

💜 SEE ALSO 💜

mkimage(1) — her sister, also iconic 👑

that's the whole page bestie, you're so smart for reading all of it 🫶

U-Boot, dated 2022-06-11 — mwah, bye, go dump some images 💖🌸🦋