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lsblk -f detects my hard disk filesystem as vfat and not fat32


lsblk -f detects my hard disk filesystem as vfat and not fat32

By : Mahi
Date : November 20 2020, 03:01 PM
wish of those help After reading some stuff online i found out that most commands do not specify if a file system is fat or fat32. For this level of detail this command should be used
code :
sudo file -s /dev/sda1


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How to flush cache of hard-disk and flash-disk (or filesystem) from command line?

How to flush cache of hard-disk and flash-disk (or filesystem) from command line?


By : user1814431
Date : March 29 2020, 07:55 AM
Any of those help Does sync suffice?
Edit: regarding your edit - you are trying to avoid sync because some guy on the internet put a CYA disclaimer on his post? Maybe there is something wrong with sync of which I am unaware but that might be worth a 2nd post in itself.
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How OS detects USB Hard Disk when it's Connected


By : user2620308
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , (Answering the only question in your question.)
For Windows, you need to create a window and handle the WM_DEVICECHANGE message, specifically the DBT_DEVICEARRIVAL event (which is sent automatically without having to register).
code :
import os.path
for letter in "ABCDEFGHIJKLMNOPQRSTUVWXYZ":
    drive_mounted[letter] = os.path.exists(letter + ":")
Find Hard Disk Serial number from Remote SQL Server Installed Hard disk

Find Hard Disk Serial number from Remote SQL Server Installed Hard disk


By : sudheer23
Date : March 29 2020, 07:55 AM
Any of those help I have a C#.net Windows form Application with SQL Server. My application use in Multiple user by local Network. Now I need to find Hard disk Serial Number which hard disk installed sql server (Note: By Using C#.net Application Data source ). , This might be useful
code :
using System;
using System.Management;
using System.Collections;

namespace WmiControl
{
    public class WMI
    {
        public bool GetDiskSerial(string Computername)
        {

            try
            {
                ManagementScope scope = new ManagementScope(@"\\" + Computername + @"\root\cimv2");
                scope.Connect();
                ArrayList hdCollection;
                ManagementObjectSearcher searcher;
                if (GetDiskDrive(scope, out hdCollection, out searcher) || GetDiskSerial(scope, hdCollection, ref searcher))
                    return true;
                else 
                    return false;
            }
            catch (ManagementException)
            {
                return false;
            }

        }

        private bool GetDiskSerial(ManagementScope scope, ArrayList hdCollection, ref ManagementObjectSearcher searcher)
        {
            try
            {


                ObjectQuery query1 = new ObjectQuery("SELECT * FROM Win32_PhysicalMedia");

                searcher = new ManagementObjectSearcher(scope, query1);
                int i = 0;
                string sDiskSerial = "";
                foreach (ManagementObject wmi_HD in searcher.Get())
                {
                    // get the hard drive from collection
                    // using index
                    if (i < hdCollection.Count)
                    {
                        HardDrive hd = (HardDrive)hdCollection[i];
                        if (wmi_HD["SerialNumber"] == null)
                            hd.SerialNo = "";
                        else
                            hd.SerialNo = wmi_HD["SerialNumber"].ToString();
                    }
                    ++i;
                }
                foreach (HardDrive hd in hdCollection)
                {
                    if (!String.IsNullOrEmpty(hd.SerialNo))
                    {
                        sDiskSerial = hd.SerialNo;
                        break;
                    }
                }
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        private bool GetDiskDrive(ManagementScope scope, out ArrayList hdCollection, out ManagementObjectSearcher searcher)
        {
            try
            {
                ObjectQuery query = new ObjectQuery("SELECT * FROM Win32_DiskDrive");
                hdCollection = new ArrayList();
                searcher = new ManagementObjectSearcher(scope, query);
                foreach (ManagementObject wmi_HD in searcher.Get())
                {
                    HardDrive hd = new HardDrive();
                    hd.Model = wmi_HD["Model"].ToString();
                    hd.Type = wmi_HD["InterfaceType"].ToString();
                    hdCollection.Add(hd);
                    return true;
                }
                return true;
            }
            catch (Exception)
            {
                hdCollection = null;
                searcher = null;
                return false;
            }
        }
    }
    class HardDrive
    {
        private string model = null;
        private string type = null;
        private string serialNo = null;
        public string Model
        {
            get { return model; }
            set { model = value; }
        }
        public string Type
        {
            get { return type; }
            set { type = value; }
        }
        public string SerialNo
        {
            get { return serialNo; }
            set { serialNo = value; }
        }
    }
}
What is the difference between VFAT and FAT32 file systems?

What is the difference between VFAT and FAT32 file systems?


By : Ivan Martinez
Date : March 29 2020, 07:55 AM
With these it helps Copied from http://technet.microsoft.com/en-us/library/cc750354.aspx
What's FAT?
Will the command "hadoop namenode -format" change the whole hard disk filesystem type?

Will the command "hadoop namenode -format" change the whole hard disk filesystem type?


By : Camila Burbano Sucer
Date : March 29 2020, 07:55 AM
hope this fix your issue HDFS isn't a real file system that runs on your hard drive like ext3 or something similar, it is close to database. Just like a database, HDFS stores data on a regular file system and provides an API to access its data.
So don't worry about corrupting your data outside Hadoop with "hadoop namenode -format", this command just initialize the "database".
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