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ddi-tool

Tool for manipulating discoverable disk images (DDIs) in-place.

Currently, it supports in-place patching of the embedded kernel cmdline in the .cmdline section of the UKI. This can be used to update the expected dm-verity roothash or usrhash after building the image.

Installation

git clone https://github.com/malt3/ddi-tool && cd ddi-tool
go install .

Usage

# build a ddi using systemd-repart
# systemd-repart --json pretty ...
ddi-tool finalize --repart-json repart-output.json --uki-path /EFI/BOOT/BOOTX64.EFI image.raw