简而言之，我还不能给予你一个解决这个问题的办法。
然而，这里有一些有用的提示：这是我得到的错误：

C:\Users\Test>adb remount
dm_verity is enabled on the system and vendor partitions.
Use "adb disable-verity" to disable verity.
If you do not, remount may succeed, however, you will still not be able to write to these volumes.
remount of system failed: Permission denied
remount failed

字符串
（^一些确切的文字也是重要的人在谷歌搜索找到这里^）
当使用IDA Hex-rays进行反向工程/反编译'\sbin\adbd'时，我注意到输出此错误的相关adbd源代码位于net中：

void remount_service(int fd, void *cookie)
{
    char buffer[200];
    char prop_buf[PROPERTY_VALUE_MAX];

    bool system_verified = false, vendor_verified = false;
    property_get("partition.system.verified", prop_buf, "0");
    if (!strcmp(prop_buf, "1")) {
        system_verified = true;
    }

    property_get("partition.vendor.verified", prop_buf, "0");
    if (!strcmp(prop_buf, "1")) {
        vendor_verified = true;
    }

    if (system_verified || vendor_verified) {
        // Allow remount but warn of likely bad effects
        bool both = system_verified && vendor_verified;
        snprintf(buffer, sizeof(buffer),
                 "dm_verity is enabled on the %s%s%s partition%s.\n",
                 system_verified ? "system" : "",
                 both ? " and " : "",
                 vendor_verified ? "vendor" : "",
                 both ? "s" : "");
        write_string(fd, buffer);
        snprintf(buffer, sizeof(buffer),
                 "Use \"adb disable-verity\" to disable verity.\n"
                 "If you do not, remount may succeed, however, you will still "
                 "not be able to write to these volumes.\n");
        write_string(fd, buffer);
    }

    if (remount("/system", &system_ro)) {
        snprintf(buffer, sizeof(buffer), "remount of system failed: %s\n",strerror(errno));
        write_string(fd, buffer);
    }

    if (hasVendorPartition()) {
        if (remount("/vendor", &vendor_ro)) {
            snprintf(buffer, sizeof(buffer), "remount of vendor failed: %s\n",strerror(errno));
            write_string(fd, buffer);
        }
    }

    if (!system_ro && (!vendor_ro || !hasVendorPartition()))
        write_string(fd, "remount succeeded\n");
    else {
        write_string(fd, "remount failed\n");
    }

    adb_close(fd);
}

型
http://www.contrib.andrew.cmu.edu/~rjkohler/android-tools-5.0.1+git20141213/core/adb/remount_service.c顺便说一句，我用来反编译的adb deamon来自Android 5.1.1。
所以这里的要点是partition.vendor.verified和partition.system.verified。如果它们设置为“1”，您将得到错误。
那么接下来将是追捕为什么和如何设置这些.以及如何防止这种情况。
不过，adb remount所做的只是重新挂载**/system**（可能还有**/vendor**）。您也可以自己完成：

adb shell su mount -o remount /system

型
这一小行通常可以帮助我完成同样的任务。su-这就可以了。（但是，是的，su命令只会在你的设备被“root”的情况下出现。）

adb disable-verity只适用于adb 1.0.33及以上版本，所以升级你的adb版本

在用户版本上运行verity disable不是错误的吗？关键是verity是阻止attacher更改OS文件系统添加恶意应用程序