DEVICENAME=$(cat /sys/devices/virtual/dmi/id/product_name)

# 安装或升级后的操作
post_upgrade_or_install() {
    echo ""
}

# 安装前的操作
pre_install() {
    echo ""
}

# 升级前的操作
pre_upgrade() {
    echo ""
}

# 安装后的操作
post_install() {
    post_upgrade_or_install
}

# 升级后的操作
post_upgrade() {
    post_upgrade_or_install
}


pre_remove() {
    echo ""
}

post_remove() {
    echo ""
}