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#!/bin/sh# shellcheck disable=SC1091#相对路径执行脚本，并给常量赋值. ../../utils/sh-test-libOUTPUT="$(pwd)/output"RESULT_FILE="${OUTPUT}/result.txt"export RESULT_FILEDISKLABEL="gpt"FILESYSTEM="ext4"#定义一个函数说明这个脚本该如何使用usage() {    echo "Usage: $0 [-d ] [-l 
    
     ] [-f 
     
      ] [-s 
      
       ]" 1>&2    exit 1}#通过while parse 可选参数while getopts "d:l:f:r:s:" o; do  case "$o" in    # The existing disk label on the device will be destroyed,    # and all data on this disk will be lost.    d) DEVICE="${OPTARG}" ;;    l) DISKLABEL="${OPTARG}" ;;    f) FILESYSTEM="${OPTARG}" ;;    s) SKIP_INSTALL="${OPTARG}" ;;    *) usage ;;  esacdonecreate_disklabel() {    echo    echo "Creating ${DEVICE} disklabel: ${DISKLABEL}"	#umount 这个parition    umount "${DEVICE}*" > /dev/null 2>&1    # If mklabel fails, skip the following tests.    skip_list="create-partition format-partition mount-partition umount-partition"	#执行parted 命令    parted -s "${DEVICE}" mklabel "${DISKLABEL}"    exit_on_fail "create-disklabel" "${skip_list}"    sync    sleep 10}create_partition() {    echo    echo "Creating partition: ${DEVICE}1"    skip_list="format-partition mount-partition umount-partition"	#通过parted -s 命令来创建新的partition    parted -s "${DEVICE}" mkpart primary 0% 100%    exit_on_fail "create-partition" "${skip_list}"    sync    sleep 10}format_partition() {    echo    echo "Formatting ${DEVICE}1 to ${FILESYSTEM}"    skip_list="mount-partition umount-partition"	#格式化partition，注意这里fat32的命令的参数和其他不同    if [ "${FILESYSTEM}" = "fat32" ]; then        echo "y" | mkfs -t vfat -F 32 "${DEVICE}1"    else        echo "y" | mkfs -t "${FILESYSTEM}" "${DEVICE}1"    fi    exit_on_fail "format-partition" "${skip_list}"	#sysc 后然后等10s。    sync    sleep 10}disk_mount() {    echo    echo "Running mount/umount tests..."	#由于要将device mount到/mnt .所以这里先把mnt umount掉    umount /mnt > /dev/null 2>&1    skip_list="umount-partition"    mount "${DEVICE}1" /mnt    exit_on_fail "mount-partition" "${skip_list}"    umount "${DEVICE}1"    check_return "umount-partition"}# Test run.#如果不存在这个块设备的话就是输出错误日志[ -b "${DEVICE}" ] || error_msg "Please specify a block device with '-d'"#检查是否是root用户! check_root && error_msg "You need to be root to run this script."create_out_dir "${OUTPUT}"#使用parted 命令需要安装的包pkgs="parted e2fsprogs dosfstools"install_deps "${pkgs}" "${SKIP_INSTALL}"#分别执行前面的函数测试这个block devicecreate_disklabelcreate_partitionformat_partitiondisk_mount
      
     
    

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