How to use fdisk to partition disk in Linux

Commonly used commands for Linux partitions: fdisk, modify the MBR partition table, MBR format, the maximum size of the modified partition is 2T.

When the size is larger than 2T, use the parted command and the gpt partition format.

1. Add a new hard disk to the virtual machine

Edit virtual machine settings---Add---Hard disk---SCSI---Create a new virtual disk---1GB---Complete

2. View all disks

Disk /dev/sdb is the newly added disk

3. Start partitioning

View Help:

4. Create the first partition

5. Similarly, create 3 primary partitions and 1 extended partition

Extend the partition to allocate the default remaining space (that is, press Enter directly in the command to allocate space)

6. Create logical partitions

At this time, enter n to directly create a logical partition, and the area number starts from 5 sdb5

7. Delete unwanted partitions

Enter d and select a partition from 1-7

8. Finally save and exit

9. Execute the effective command (to prevent unknown problems)

Notify the kernel that the partition has changed

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