How to partition and manage disks in CentOS
Apr 14, 2025 pm 05:21 PMDetailed explanation of disk partitioning and management of CentOS system: The use of fdisk and parted command line tools
This article will introduce in detail how to use the command line tools fdisk
and parted
for disk partitioning and management in CentOS system. Be sure to back up all important data before operation to avoid data loss.
1. Preparation
- Data Backup : This is a crucial step, make sure that all important data is backed up to a secure location.
- Identify available disks : Use the
lsblk
orfdisk -l
command to view the available disk devices in the system and confirm the name of the disk device you want to operate (for example/dev/sda
).
2. Use fdisk for partitioning (suitable for MBR partition table)
fdisk
is a commonly used disk partitioning tool, suitable for MBR partition tables.
- Start fdisk : Enter
sudo fdisk /dev/sdX
to start fdisk tool, where/dev/sdX
is replaced by the name of the disk device you want to partition. - View partition table : Enter
p
to view the partition table information of the current disk. - Create a new partition : Enter
n
to create a new partition, and then follow the prompts to select:- Partition type (main partition
p
or extended partitione
) - Partition number
- Partition start sector (usually press Enter to use the default value)
- Partition end sector (specify the partition size, for example,
20G
means creating a 20GB size partition)
- Partition type (main partition
- Set partition type : After creating a partition, you can use the
t
command to modify the partition type (for example, set the partition type to Linux ext4 file system). - Write to the partition table : Enter
w
to save changes and exit fdisk.
3. Use parted for partitioning (suitable for GPT partition table)
The parted
tool supports GPT partition tables and is more suitable for larger disks or scenarios where more partitions are needed.
- View partition layout : Use
sudo parted /dev/sdX print
to view the partition layout of the current disk. - Create a partition : Use
mkpart
command to create a partition, for example:- Create the primary partition:
sudo parted /dev/sdX mkpart primary ext4 0 200G
(Create the primary partition with a size of 200GB starting from sector 0 and set its type to ext4) - Create an extended partition:
sudo parted /dev/sdX mkpart extended 200G 100%
(create an extended partition starting from 200GB to end of disk)
- Create the primary partition:
- Save partition table : Use
sudo parted /dev/sdX save
to save partition table changes.
4. Format partition
Use the mkfs
command to format the newly created partition. For example, format the /dev/sdX1
partition to an ext4 file system:
sudo mkfs.ext4 /dev/sdX1
5. Create a mount point
Use the mkdir
command to create a mount point directory, for example:
sudo mkdir /mnt/data
6. Mount the partition
Use mount
command to mount the partition to the mount point:
sudo mount /dev/sdX1 /mnt/data
7. Permanently mount the partition (edit /etc/fstab
)
In order for the partition to be automatically mounted when the system starts, the /etc/fstab
file needs to be edited. Please operate this step with caution, as incorrect configuration may cause the system to fail to start. It is recommended to back up the /etc/fstab
file first. Add a line like the following:
<code>/dev/sdX1 /mnt/data ext4 defaults 0 0</code>
8. Verify the mount
Use mount
command to verify that the partition is mounted correctly:
mount | grep data
Note: The above /dev/sdX
and /dev/sdX1
need to be replaced with your actual disk device and partition name. Please check carefully to avoid data loss due to incorrect operations. Before performing any partitioning operations, it is strongly recommended that you re-confirm that all important data has been backed up.
The above is the detailed content of How to partition and manage disks in CentOS. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

In the digital currency market, real-time mastering of Bitcoin prices and transaction in-depth information is a must-have skill for every investor. Viewing accurate K-line charts and depth charts can help judge the power of buying and selling, capture market changes, and improve the scientific nature of investment decisions.

Identifying the trend of the main capital can significantly improve the quality of investment decisions. Its core value lies in trend prediction, support/pressure position verification and sector rotation precursor; 1. Track the net inflow direction, trading ratio imbalance and market price order cluster through large-scale transaction data; 2. Use the on-chain giant whale address to analyze position changes, exchange inflows and position costs; 3. Capture derivative market signals such as futures open contracts, long-short position ratios and liquidated risk zones; in actual combat, trends are confirmed according to the four-step method: technical resonance, exchange flow, derivative indicators and market sentiment extreme value; the main force often adopts a three-step harvesting strategy: sweeping and manufacturing FOMO, KOL collaboratively shouting orders, and short-selling backhand shorting; novices should take risk aversion actions: when the main force's net outflow exceeds $15 million, reduce positions by 50%, and large-scale selling orders

First, select well-known platforms such as Binance Binance or Ouyi OKX, and prepare your email and mobile phone number; 1. Visit the official website of the platform and click to register, enter your email or mobile phone number and set a high-strength password; 2. Submit information after agreeing to the terms of service, and complete account activation through the email or mobile phone verification code; 3. After logging in, complete identity authentication (KYC), enable secondary verification (2FA), and regularly check security settings to ensure account security. After completing the above steps, you can successfully create a BTC digital currency account.

cronisusedforpreciseschedulingonalways-onsystems,whileanacronensuresperiodictasksrunonsystemsthataren'tcontinuouslypowered,suchaslaptops;1.Usecronforexacttiming(e.g.,3AMdaily)viacrontab-ewithsyntaxMINHOURDOMMONDOWCOMMAND;2.Useanacronfordaily,weekly,o

1. Download and install the application through the official recommended channel to ensure safety; 2. Access the designated download address to complete the file acquisition; 3. Ignore the device safety reminder and complete the installation as prompts; 4. You can refer to the data of mainstream platforms such as Huobi HTX and Ouyi OK for market comparison; the APP provides real-time market tracking, professional charting tools, price warning and market information aggregation functions; when analyzing trends, long-term trend judgment, technical indicator application, trading volume changes and fundamental information; when choosing software, you should pay attention to data authority, interface friendliness and comprehensive functions to improve analysis efficiency and decision-making accuracy.

1. First, ensure that the device network is stable and has sufficient storage space; 2. Download it through the official download address [adid]fbd7939d674997cdb4692d34de8633c4[/adid]; 3. Complete the installation according to the device prompts, and the official channel is safe and reliable; 4. After the installation is completed, you can experience professional trading services comparable to HTX and Ouyi platforms; the new version 5.0.5 feature highlights include: 1. Optimize the user interface, and the operation is more intuitive and convenient; 2. Improve transaction performance and reduce delays and slippages; 3. Enhance security protection and adopt advanced encryption technology; 4. Add a variety of new technical analysis chart tools; pay attention to: 1. Properly keep the account password to avoid logging in on public devices; 2.

Binance provides bank transfers, credit cards, P2P and other methods to purchase USDT, USDC and other stablecoins, with fiat currency entrance and high security; 2. Ouyi OKX supports credit cards, bank cards and third-party payment to purchase stablecoins, and provides OTC and P2P transaction services; 3. Sesame Open Gate.io can purchase stablecoins through fiat currency channels and P2P transactions, supporting multiple fiat currency recharges and convenient operation; 4. Huobi provides fiat currency trading area and P2P market to purchase stablecoins, with strict risk control and high-quality customer service; 5. KuCoin supports credit cards and bank transfers to purchase stablecoins, with diverse P2P transactions and friendly interfaces; 6. Kraken supports ACH, SEPA and other bank transfer methods to purchase stablecoins, with high security

During the process of investing in the currency circle, paying attention to the market popularity and activity of the currency will help capture potential coins and popular trends. The popularity list reflects the transaction volume, social discussion and market attention of the currency, and is an effective tool for novices to quickly understand market trends.
