117 lines
2.4 KiB
Bash
Executable File
117 lines
2.4 KiB
Bash
Executable File
#!/bin/bash -e
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TARGET_DIR=$1
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shift
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FSTAB="${TARGET_DIR}/etc/fstab"
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OS_RELEASE="${TARGET_DIR}/etc/os-release"
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function fixup_root()
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{
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echo "Fixing up rootfs type: $1"
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FS_TYPE=$1
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sed -i "s#\([[:space:]]/[[:space:]]\+\)\w\+#\1${FS_TYPE}#" "$FSTAB"
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}
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del_part()
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{
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echo "Deleting partition: $1 $2"
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SRC="$1"
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MOUNTPOINT="$2"
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# Remove old entries with same mountpoint
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sed -i "/[[:space:]]${MOUNTPOINT//\//\\\/}[[:space:]]/d" "$FSTAB"
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if [ "$SRC" != tmpfs ]; then
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# Remove old entries with same source
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sed -i "/^${SRC//\//\\\/}[[:space:]]/d" "$FSTAB"
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fi
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}
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function fixup_part()
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{
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del_part $@
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echo "Fixing up partition: ${@//: }"
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SRC="$1"
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MOUNT="$2"
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FS_TYPE="$3"
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MOUNT_OPTS="$4"
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PASS="$5"
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# Append new entry
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echo -e "${SRC}\t${MOUNT}\t${FS_TYPE}\t${MOUNT_OPTS}\t0 $PASS" >> "$FSTAB"
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mkdir -p "${TARGET_DIR}/${MOUNT}"
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}
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function fixup_basic_part()
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{
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echo "Fixing up basic partition: $@"
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FS_TYPE="$1"
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MOUNT="$2"
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MOUNT_OPTS="${3:-defaults}"
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fixup_part "$FS_TYPE" "$MOUNT" "$FS_TYPE" "$MOUNT_OPTS" 0
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}
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function partition_arg() {
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PART="$1"
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I="$2"
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DEFAULT="$3"
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ARG=$(echo $PART | cut -d':' -f"$I")
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echo ${ARG:-$DEFAULT}
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}
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function fixup_device_part()
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{
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echo "Fixing up device partition: ${@//: }"
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DEV="$(partition_arg "$*" 1)"
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# Dev is either <name> or /dev/.../<name>
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[ "$DEV" ] || return 0
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echo $DEV | grep -qE "^/" || DEV="LABEL=$DEV"
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MOUNT="$(partition_arg "$*" 2 "/${DEV##*[/=]}")"
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FS_TYPE="$(partition_arg "$*" 3 ext4)"
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MOUNT_OPTS="$(partition_arg "$*" 4 defaults)"
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fixup_part "$DEV" "$MOUNT" "$FS_TYPE" "$MOUNT_OPTS" 2
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}
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function fixup_fstab()
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{
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echo "Fixing up /etc/fstab..."
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fixup_root auto
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fixup_basic_part proc /proc
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fixup_basic_part devtmpfs /dev
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fixup_basic_part devpts /dev/pts mode=0620,ptmxmode=0666,gid=5
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fixup_basic_part tmpfs /dev/shm nosuid,nodev,noexec
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fixup_basic_part sysfs /sys
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fixup_basic_part debugfs /sys/kernel/debug
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fixup_basic_part pstore /sys/fs/pstore
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}
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function add_build_info()
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{
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[ -f "$OS_RELEASE" ] && sed -i "/^BUILD_ID=/d" "$OS_RELEASE"
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echo "Adding build-info to /etc/os-release..."
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echo "BUILD_INFO=\"$(whoami)@$(hostname) $(date)${@:+ - $@}\"" >> \
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"$OS_RELEASE"
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}
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echo "Executing $(basename $0)..."
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add_build_info $@
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[ -f "$FSTAB" ] && fixup_fstab
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exit 0
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