How to delete disk in centos

First determine the disk to be deleted, and check the disk status through the command:

fdisk -l

As shown in the figure, if the disk device to be deleted is: /dev/sda

You can see that there are two disk partitions under this disk:

/dev/sda1;

/de/sda2;

(Recommended tutorial: centos usage tutorial)

Use the commands:

umount /dev/sda1

and

umount /dev/sda2

to unmount the two partitions under the disk.

Note: When uninstalling a disk partition, you should pay attention to whether it is a system file.

After the uninstallation is completed, the disk will be deleted.

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