Dustin C. Hatch
b2a0aab680
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Aimee OS/aimee-os/pipeline/head This commit looks good
This is needed in case we need to poll for the block device containing the root filesystem.
115 lines
2.9 KiB
Bash
Executable File
115 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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if [ $(id -u) != 0 ]; then
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exec "${HOST_DIR}"/bin/fakeroot "$0" "$@"
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fi
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export PATH="${HOST_DIR}:${PATH}"
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TARGET_DIR=$1
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WORKDIR=$(mktemp -d)
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OUTDIR="${WORKDIR}"/initramfs
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LIB_CACHE="${WORKDIR}"/libs.cache
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PKGDIR="${0%/*}"
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trap 'rm -rf "${WORKDIR}"' INT QUIT TERM EXIT
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cache_libs() {
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find \
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"${TARGET_DIR}"/usr/lib \
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"${TARGET_DIR}"/usr/lib64 \
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\( -type f -o -type l \) \
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-name '*.so*' \
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| sed "s@${TARGET_DIR}@@" \
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> "${LIB_CACHE}"
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}
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bin_install() {
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for arg; do
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arg=${arg#/}
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[ -e "${OUTDIR}/${arg}" ] && continue
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mkdir -p "${OUTDIR}/${arg%/*}"
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cp -a "${TARGET_DIR}/${arg}" "${OUTDIR}/${arg}"
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if [ -h "${TARGET_DIR}/${arg}" ]; then
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bin_install "$(realpath --relative-to "${TARGET_DIR}" "${TARGET_DIR}/${arg}")"
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elif [ -f "${TARGET_DIR}/${arg}" ]; then
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readelf --dynamic "${TARGET_DIR}/${arg}" \
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| awk '$2=="(NEEDED)"{gsub(/\[|\]/,"",$5); print $5}' \
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| while IFS= read -r lib; do
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path="$(grep "${lib}"'$' "${LIB_CACHE}")"
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if [ -z "${path}" ]; then
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printf 'ERROR could not resolve shared library %s\n' "${lib}" >&2
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return 1
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fi
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bin_install "${path}"
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done
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elif [ ! -e "${TARGET_DIR}/${arg}" ]; then
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printf 'ERROR could not find /%s to copy\n' "${arg}" >&2
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return 1
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fi
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done
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}
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mk_skel() {
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mkdir -p "${OUTDIR}"/dev
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mknod -m 0622 "${OUTDIR}"/dev/console c 5 1
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mkdir -p \
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"${OUTDIR}"/usr \
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"${OUTDIR}"/usr/bin \
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"${OUTDIR}"/usr/sbin \
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"${OUTDIR}"/usr/lib
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ln -s usr/bin "${OUTDIR}"/bin
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ln -s usr/sbin "${OUTDIR}"/sbin
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ln -s usr/lib "${OUTDIR}"/lib
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if [ -h "${TARGET_DIR}"/usr/lib64 ]; then
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cp -P "${TARGET_DIR}"/usr/lib64 "${OUTDIR}"/usr
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fi
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if [ -h "${TARGET_DIR}"/lib64 ]; then
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cp -P "${TARGET_DIR}"/lib64 "${OUTDIR}"
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fi
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}
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rm -rf "${OUTDIR}"
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mk_skel || exit
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cache_libs || exit
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bin_install \
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/bin/cat \
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/bin/cp \
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/bin/ls \
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/bin/mkdir \
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/bin/mount \
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/bin/rm \
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/bin/sh \
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/bin/sleep \
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/bin/sort \
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/bin/tail \
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/bin/umount \
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/usr/bin/btrfs \
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/usr/bin/mkfs.btrfs \
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/usr/bin/mountpoint \
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/usr/bin/readlink \
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/usr/sbin/blkid \
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/usr/sbin/findfs \
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/usr/sbin/partx \
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/usr/sbin/sfdisk \
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/usr/sbin/switch_root \
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|| exit
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if [ -e "${TARGET_DIR}"/usr/bin/setfiles ]; then
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bin_install /usr/bin/setfiles || exit
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fi
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install "${PKGDIR}"/initramfs/initramfs-init.sh "${OUTDIR}"/init || exit
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install "${PKGDIR}"/initramfs/init-storage.sh "${OUTDIR}"/usr/bin/init-storage || exit
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mkdir -p "${TARGET_DIR}"/boot
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(cd "${OUTDIR}" && find . -mindepth 1 \
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| LC_ALL=C sort \
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| cpio --reproducible --quiet -o -H newc \
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| zstd \
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) > "${TARGET_DIR}"/boot/initramfs.img.zst
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