2022-07-26 16:30:52 +00:00
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#!/bin/sh
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#
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# mmdebstrap does have a --no-merged-usr option but only as a no-op for
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# debootstrap compatibility
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#
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# Using this hook script, you can emulate what debootstrap does to set up
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# a system without merged-/usr even after the essential init-system-helpers
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# package added a dependency on "usrmerge | usr-is-merged". By installing
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# a dummy usr-is-merged package, it avoids pulling in the dependencies of
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# the usrmerge package.
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set -eu
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2022-10-16 13:20:59 +00:00
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if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
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2022-07-26 16:30:52 +00:00
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set -x
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fi
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TARGET="$1"
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echo "Warning: starting with Debian 12 (Bookworm), systems without merged-/usr are not supported anymore" >&2
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echo "this system will not be supported in the future" > "$TARGET/etc/unsupported-skip-usrmerge-conversion"
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# now install an empty "usr-is-merged" package to avoid installing the
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# usrmerge package on this system even after init-system-helpers starts
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# depending on "usrmerge | usr-is-merged".
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#
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# This package will not end up in the final chroot because the essential
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# hook replaces it with the actual usr-is-merged package from src:usrmerge.
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tmpdir=$(mktemp --directory --tmpdir="$TARGET/tmp")
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mkdir -p "$tmpdir/usr-is-merged/DEBIAN"
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cat << END > "$tmpdir/usr-is-merged/DEBIAN/control"
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Package: usr-is-merged
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Priority: optional
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Section: oldlibs
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Maintainer: Johannes Schauer Marin Rodrigues <josch@debian.org>
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Architecture: all
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Multi-Arch: foreign
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Source: mmdebstrap-dummy-usr-is-merged
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Version: 1
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Description: dummy package created by mmdebstrap no-merged-usr setup hook
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This package was generated and installed by the mmdebstrap no-merged-usr
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setup hook at /usr/share/mmdebstrap/hooks/no-merged-usr.
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.
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If this package is installed in the final chroot, then this is a bug
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in mmdebstrap. Please report: https://gitlab.mister-muffin.de/josch/mmdebstrap
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END
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dpkg-deb --build "$tmpdir/usr-is-merged" "$tmpdir/usr-is-merged.deb"
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dpkg --root="$TARGET" --log="$TARGET/var/log/dpkg.log" --install "$tmpdir/usr-is-merged.deb"
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rm "$tmpdir/usr-is-merged.deb" "$tmpdir/usr-is-merged/DEBIAN/control"
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rmdir "$tmpdir/usr-is-merged/DEBIAN" "$tmpdir/usr-is-merged" "$tmpdir"
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