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Cloud Virtual Machine

Release Notes and Announcements

Public Image Release Notes

Announcements

Announcement on the Subscription Price Update of RHEL on Tencent Cloud

Temporary Solution for the Windows Blue Screen Issue Caused by CrowdStrike Security Software on July 19, 2024

Announcement on Flexible Discounts for Spot Instances in Some Regions

Updating Some Image Pip Package Management Tools for CentOS 7

CentOS 8 End of Maintenance

Discontinuation of Support for SUSE Commercial Images

Price Reduction in Selected Availability Zones

OrcaTerm Proxy IP Addresses Updates

Pay-as-you-go Price Adjustments for Standard S3 CVMs in the Silicon Valley Region

Vulnerability repairing for Linux images

Stopping supporting for Ubuntu 10.04 images

Solution to Tomcat Start Failure on Ubuntu14.04

Upgrading Virtio network card drive for Windows CVMs

About Configuration of Security Group Port 53

Windows Server 2003 System Images End of Support Announcement

End of Support for Windows Server 2008 R2 Enterprise Edition SP1 64-bit System Images

Product Introduction

Regions and Availability Zones

Instance

Instance Overview

Families and Models

Storage

Storage Overview

Cloud Block Storage

Cloud Object Storage (COS)

Image

Public Image

Official Maintenance End Plans of Operating Systems

TencentOS Server

TencentOS Server Introduction

TencentOS Server Image Update Log

TencentOS Server 4 Release Notes

TencentOS Server Features

FAQs about TencentOS Server

OpenCloudOS

OpenCloudOS Overview

OpenCloudOS V8 Image Update Log

OpenCloudOS V9 Image Update Log

Network and Security

Placement Group

Network Environment

Private Network Access

Internet Access

Elastic IP (EIP)

Elastic Network Interface (ENI)

Cloud Workload Protection Platform

Anti-DDoS Basic

OPS and Monitoring

Monitoring & Alarming

Access Management

Access Control Overview

Authorizable Resource Type

Authorization Policy Syntax

APIs Supporting CAM

Purchase Guide

Billing Overview

Purchasing Instances

Purchasing Channels

Billing Overview

Notes for Purchasing from Console

Purchase Limits

Instance Configuration Adjustment Pricing

No Charges When Shut Down for Pay-as-You Go Instances

Purchasing Cloud Disks

Cloud Disk Types

Purchasing Reserved Instances

Reserved Instance User Guide

Creating Reserved Instance

Purchasing Public Network Bandwidth

Public Network Billing

Public Network Fee

Public Network Bandwidth Cap

Adjusting Public Network Billing

Image Billing Description

Elastic IP Billing

Payment Overdue

Paying the Difference for Disk Media Type Changes

Getting Started

Custom Configurations

Choosing a Billing Mode

Types of Instance

Configuring Disk

Network Planning

Configuring Security Groups

Estimating Costs

Customizing Linux CVM Configurations

Customizing Windows CVM Configurations

Operation Guide

Operation Guide Overview

Convenience Features

Switching Instance Page View in Console

Instances

Creating Instances

Guidelines for Creating Instances

Creating Instances via CVM Purchase Page

Create Instances via Custom Image

Purchasing Similar Instances

Generating API Explorer Reusable Scripts to Create Instances

Enable Model Comparison

Managing Instance Launch Template

Batch Sequential Naming or Pattern String-Based Naming

Logging In to Linux Instances

Logging In To Linux Instance (Web Shell)

Logging In To Linux Instances (Remote Login)

Logging In To Linux Instance (SSH Key)

Logging In To Linux Instances (VNC)

Logging In To Linux Instances (Mobile Devices)

Logging in to Windows instance

Logging in Using Standard Method (Recommended)

Logging In to Windows Instance Using RDP

Logging into Windows Instance via Remote Desktop

Logging into Windows Instance via VNC

Logging in to a Windows Instance from Mobile Devices

Adjusting Configuration

Changing Instance Configuration

Adjusting Network Configuration

Adjusting Project Configuration

Suggestions on Adjusting Instance Configuration

View Instance Details

Viewing Instance Information

Querying Instance Metadata

Renaming Instances

Resetting Instance Password

Managing Instance IPs

Getting Private IP Addresses and Setting DNS

Modifying Private IP Addresses

Getting Public IP Addresses

Changing Public IP Addresses

Retrieving Public IP Address

Changing Security Group

Conversion from Pay-As-You-Go to Monthly Subscription

Searching for Instances

Exporting Instance List

Renewing Instances

Starting Up Instances

Shutting Down Instances

Restarting Instances

Reinstalling System

Using Tencent Cloud Automation Tools to execute commands

Terminating/Returning Instances

Terminating/Returning Instance in Console

Enabling Instance Termination Protection

Instance Repossession or Recovering

Querying the Repossession Status of a Spot Instance

No Charges When Shut Down for Pay-as-You-Go Instances

Enabling and Disabling Hyper-Threading

Instance Quota Management

Query Instance Purchase Quota

Increasing Instance Purchase Quota

Querying Quota Application Records

Reserved Instances

Splitting a Reserved Instance

Merging Reserved Instances

Images

Creating a Custom Image

Sharing Custom Images

Cancelling Image Sharing

Deleting Custom Images

Image Replication

Importing Images

Forcibly Importing Image

Creating an Image

Preparing a Linux Image

Checking Virtio Drivers in Linux

Installing Cloud-Init on Linux

Creating Windows Images

Installing Cloudbase-Init on Windows

Converting Image Format

Setting the GRUB File Disk Identification Method to UUID

Setting the Fstab Disk Identification Method to UUID

Exporting an image

CentOS Linux Operations

Migrating CentOS to TencentOS Server

Migrating CentOS to OpenCloudOS

Migrating Servers

Online Migration

Migration Operation Guide

Online Migration Directions

Migrating with a Migration Tool

Migrating via the Console

Migration Tool

Compatibility and Tool Configuration Description

Migration Time Estimation

Migration billing instructions

Offline Migration

Maintenance Tasks

Maintenance Task Type and Processing Policy

Viewing Maintenance Task

Authorizing Maintenance Policy and Scheduling Maintenance Time

Configuring Preset Authorization Policy

Configuring Maintenance Task Alarm Notification

Cloud Disks

Expanding Cloud Disks

Changing Disk Media Type

Adjusting Cloud Disk Types

Networking

Common Public IP

Configuring a Public Gateway

Switching to VPC

EIP Direct Connection

Security

Tags

Managing Instances via Tags

Monitoring and Alarms

Getting Monitoring Statistics

Creating Alarm Policies

Sample Console Configuration

Practical Tutorial

Choosing the CVM Model

Setting up a Website

Building an Environment

References Overview

Install and Configure IIS

Setting up LNMP

Manual Setup of LNMP (CentOS 8)

Manual Setup of LNMP (CentOS 7)

Manual Setup of LNMP (CentOS 6)

Manual Setup of LNMP (openSUSE)

Setting up LAMP manually

Manual Setup of LAMP

Setting up Java Web

Manual Setup of Java Web

Setting up Node.js

Manual Setup of Node.js

Manual Setup of WIPM Environment

Step2: Install and Configure PHP

Step3: Install and Build MySQL

Building a Website

WordPress Website

Building a WordPress Website (Linux)

Building a WordPress Website (Windows)

Discuz! Forum

Building Up a Discuz! Forum

Setting up Drupal

Setting up a Ghost Blog

Building an Application

Setting Up FTP Site

Setting Up an FTP Site (Linux)

Setting Up an FTP Site (Windows)

NTP Service

NTP Service of Tencent Cloud

Setting Up NTP Service (Linux)

Transitioning from ntpdate to ntpd (Linux)

Setting Up NTP Service (Windows)

Building the Primary/Secondary PostgreSQL Architecture

Building Microsoft SharePoint 2016

Installing BT Panel for Windows

Building the Docker

Building GitLab

Building RabbitMQ

Sending Emails through Port 465

Building a Visual GUI

Building a Visual Ubuntu Desktop

Building a Visual CentOS Desktop

Uploading Local Files to CVM

Copying Local Files to CVMs

Uploading Files from Windows to a Windows CVM via MSTSC

Uploading Files from MacOS to Windows CVM Using MRD

Uploading Files from Linux to Windows CVM using RDP

Uploading files via WinSCP to a Linux CVM from Windows

Uploading Files from Linux or MacOS to Linux CVM via SCP

Uploading Files from Linux to a CVM Using FTP

Uploading Files from Windows to a CVM Using FTP

Other CVM Operations

CVM Access to COS via a Private Network

Best Practices for Boot Mode Legacy BIOS and UEFI

Recovering Data on Linux CVMs

Managing Disk Space on Windows CVMs

Changing Kernel of a Linux Instance Manually

Setting Up Windows-based AD Domain on a CVM

Network Performance Test

High-throughput Network Performance Test

Using USB/IP to Share USB Devices in Linux

Using RemoteFx to Redirect USB Devices in Windows

Using AVX-512 Instructions to Accelerate AI Applications on CVM

Building Tencent SGX Confidential Computing Environment

Configuring Persistent Memory in M6p Instances

Calling Cloud APIs via Python to Share Custom Images in Batches

Customizing DNS Configuration (Linux System)

Operations Guide

Initializing Data Disks

Initializing Data Disks (Windows CVM)

Formatting & Mounting Data Disks

Reading/Writing EXT Data Disks after Reinstalling a Linux CVM to Windows CVM

Read/Write of the Original NTFS Data Disk After the Operating System Is Changed from Windows to Linux

Environment Configurations

Linux Power Management Configuration

Modifying etc/hosts Configuration of Linux Instance

Installing Software

Accelerating Software Package Downloading and Updating with Tencent Cloud Software Source

Installing Software via Apt-get (Ubuntu)

Installing Software via YUM (CentOS)

Installing Software via zypper (SUSE)

Switching CentOS 6 Source to YUM Repository

Installing chronyd Service on CentOS 8

User Data

Configuring Custom Data (Linux CVM)

Setting Custom Data (Windows CVM)

Work with Operating Systems

System Activation

Activating Windows with slmgr Command

Windows Server System Activation

System Shutdown

Configuring High-performance Power Management

Windows Recovery Mode

Updating the Virtio ENI Driver

Modifying VNC Resolution

Ensuring Unique SIDs for CVMs Using Sysprep

Use of the atop Monitoring Tools by Linux Instances

Introduction to Linux Kernel Parameters

Others

Booting into Linux Single User Mode

Using Rescue Mode

Setting Up Windows CVM for Multi-user Remote Login

Modifying the Default Remote Port of CVM

Getting Instance Login Logs

Troubleshooting

Instance-Related Failures

CVM Login Failures

Windows Instance Login Failures

Windows Instance Login Failures

An authentication error occurred when you tried to log in to a Windows instance remotely

Failed to Reset the CVM Password or the CVM Password Is Invalid

Connection to a Windows CVM through Remote Desktop was denied

Requires network-level identity verification

Problems occurred when you tried to log in to a Windows CVM remotely on Mac

Failed to log in to a Windows CVM due to high CPU and memory usage

Failed to connect to a remote computer through Remote Desktop

Credentials Not Work

Windows instance: no remote Desktop license server can provide license

Remote Login Failure Due To Port Issues

Linux Instance Login Failures

Linux Instance Login Failures

Unable to Log in to a Linux Instance via SSH Key

Failing to log in to a Linux CVM due to high CPU and memory usage

Remote Login Failure due to Port Issues

VNC Login Error (Module is Unknown)

VNC Login Error (Account Locked due to XXX Failed Logins)

VNC Login Error (Login Failed with Correct Password)

VNC or SSH Login Error (Permission Denied)

Login Failure Due to /etc/fstab Configuration Errors

sshd Configuration File Permissions

Infinite Loop Call in /etc/profile

Login Failure Due to Server Isolation

Login Failure Due to High Bandwidth Occupation

Remote Connect Failure Due to Security Group Settings

Troubleshooting Linux Instance Issues via VNC and Rescue Mode

Failed to shut down or restart a CVM

Network Namespace Creation Failure

Kernel and IO Issues

Missing System bin or lib Soft Link

Suspected Infection with Virus

"no space left on device" Error During File Creation

Linux CVM Memory Issues

High Memory Utilization

Log Error “fork: Cannot allocate memory”

VNC Login Error “Cannot allocate memory”

Triggering Out of Memory When There is Available Memory

Network Related Failures

Cross-MLC-Boarder Linkage Latency

Website Access Failure

Slow Website Access

Incorrect Multi-Queue ENI Configuration

CVM Network Latency and Packet Loss

Network Packet Loss

Domain Name Resolution Failure (CentOS 6.X System)

Domain Name Resolution Failure (Linux System)

API Documentation

Region APIs

Instance APIs

Cloud Hosting Cluster APIs

ConfigureChcAssistVpc

ConfigureChcDeployVpc

DescribeChcDeniedActions

ModifyChcAttribute

RemoveChcAssistVpc

RemoveChcDeployVpc

DescribeChcHosts

Image APIs

DescribeImageSharePermission

DescribeImportImageOs

DescribeImageQuota

ModifyImageSharePermission

ModifyImageAttribute

DescribeImageFromFamily

ConvertOperatingSystems

Instance Launch Template APIs

DescribeLaunchTemplates

CreateLaunchTemplate

CreateLaunchTemplateVersion

DeleteLaunchTemplate

DeleteLaunchTemplateVersions

DescribeLaunchTemplateVersions

ModifyLaunchTemplateDefaultVersion

Making API Requests

Request Structure

Placement Group APIs

DescribeDisasterRecoverGroups

DescribeDisasterRecoverGroupQuota

CreateDisasterRecoverGroup

ModifyDisasterRecoverGroupAttribute

DeleteDisasterRecoverGroups

Key APIs

DescribeKeyPairs

AssociateInstancesKeyPairs

DisassociateInstancesKeyPairs

ModifyKeyPairAttribute

Security Group APIs

AssociateSecurityGroups

DisassociateSecurityGroups

Network APIs

DescribeInternetChargeTypeConfigs

InquiryPriceResetInstancesInternetMaxBandwidth

ResetInstancesInternetMaxBandwidth

ModifyInstancesVpcAttribute

FAQs

Region and Availability Zone

Billing

Purchasing and Renewing

Instance

Issues on Logging in and Connecting to Instances

A CVM Instance Cannot Be Found

Adjusting Configuration

Big Data Instance

Storage

Using Cloud Disks

Mounting and Unmounting Cloud Disks

Resizing Cloud Disks

Issues on Data Backup and Recovery

Images

Issues on Custom Image

Changing Images (Reinstalling System)

Cloud-Init & Cloudbase-Init

FAQs about Red Hat Enterprise Linux Image

Service Migration

Network

Elastic Public IP issues

Elastic Network Interface

Public Network Bandwidth

Security

Password Login and SSH Key Login

Security Groups

Security Group Rules

Operating Systems

OPS & Monitoring

Uploading Files

Common Operations and Commands

Related Agreement

CVM Service Level Agreements

Red Hat Enterprise Linux Image Service Agreement

Tencent Cloud Public IP Service Level Agreement

DocumentationCloud Virtual MachineOperations GuideInitializing Data DisksFormatting & Mounting Data Disks

Formatting & Mounting Data Disks

Last updated: 2024-01-06 17:38:11

Formatting & Mounting Data Disks

Last updated: 2024-01-06 17:38:11

Overview
This document describes how to perform initialization operations such as formatting, partitioning, and creating a file system on a Linux CVM data disk.
Notes
Before formatting, ensure that no data is stored on the data disk and that important data has been backed up. After formatting, all data on the data disk will be cleared.
To prevent service exceptions, ensure that the CVM has stopped providing external services before formatting.
Directions
Follow the appropriate operation guide based on the disk capacity.
If the disk capacity is less than 2 TB, follow the instructions under Initializing Cloud Disks (Linux).
If the disk capacity is 2 TB or more, follow the instructions under Initializing Cloud Disks (Linux).

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