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21 lines
544 B
Bash
21 lines
544 B
Bash
source $stdenv/setup
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set -o pipefail
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# Get the paths in the closure of `init'.
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if ! test -e ./init-closure; then
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echo 'Your Nix installation is too old! Upgrade to nix-0.11pre7038 or newer.'
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exit 1
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fi
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storePaths=$($SHELL $pathsFromGraph ./init-closure)
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# Paths in cpio archives *must* be relative, otherwise the kernel
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# won't unpack 'em.
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mkdir root
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cd root
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cp -prd --parents $storePaths .
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# Put the closure in a gzipped cpio archive.
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ensureDir $out
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ln -s $init init
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find * -print0 | cpio -ov -H newc --null | gzip -9 > $out/initrd
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