How to reinstall linux under linux

How to reinstall linux under linux

1. First download the Linux image file as .iso The file ending with

2, then insert the U disk and start making the boot disk

a) Determine which device it is based on the size of the U disk

sudo fdisk -l

(usually on sdb)

b) Format the U disk. In order to format, you first need to umount the U disk:

/dev/sdb 是我的 U 盘设备。
sudo umount /dev/sdb*

(More all partitions under the U disk sdb Remove all)

Format U disk:

sudo mkfs.vfat /dev/sdb -I

(Format all partitions under sdb)

3. Then use the dd command to write the image file

Use the dd command, the format is as follows:

sudo dd if=xxx.iso of=U盘路径

(write the image)

Complete example:

sudo dd if=~/images/ubuntu.iso of=/dev/sdb

Write to the sdb disk located ~ubuntu.iso image file in the /images directory. After entering the above DD command, press Enter and execute. The system will start to create a boot disk. During this period, there will be no feedback in the terminal command window, but you can see the U disk through the U disk running indicator light. The disk is undergoing read and write operations, and this process may take 5 or 6 minutes to complete. When you see a return message in the terminal command window, the production is completed.

4. The last step is to enter the BIOS, set the U disk as the first boot disk, and reboot to enter the system installation.

Recommended: linux system tutorial

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