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Last active March 2, 2025 21:28
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Extracting lsd.jxe from MIB2 firmware update archive
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README.md

mount app.img

MIB2 firmware containts MMX2\app\70\default\app.img file which containts QNX6 filesystem1 that can be mounted in Ubuntu with

sudo mount -o loop -t qnx6 ~/MHI2_ER_AUG22_K3346_MU1438/app.img ~/app

download/compile dumpifs

For manipulating ifs files we need dumpifs and exMifsLzo (as main.stage2.ifs.lzo is LZO compressed)

git clone https://github.com/FrancisHoogendijk/dumpifs

The repo contains binaries for both dumpifs and exMifsLzo but the dumpifs wasn't working for me so I removed both and compiled them with make (some development files need to be installed with apt)

cd dumpifs
rm dumpifs
rm exMifsLzo
make

decompress main_stage2.ifs.lzo and extract lsd.jxe

Decompress the img_restore/main_stage2.ifs.lzo

./exMifsLzo ~/app/img_restore/main_stage2.ifs.lzo main_stage2.ifs
./dumpifs -z main_stage2.ifs -f ifs/lsd.jxe

lsd.jxe is now extracted in ifs/lsd.jxe

Footnotes

  1. app.img also contains imagefs section ↩

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