What if welcome to emergency mode appears when CentOS7.4 boots up?
Editor to share with you about CentOS7.4 boot welcome to emergency mode how to do, I hope you have something to gain after reading this article, let's discuss it together!
Today, we use the virtual machine to do the experiment. After the installation of the system is completed, after optimizing some options, we will mount the ISO image file. The following error is reported after the system is started.
I think it should be caused by mounting, and the original system is to enter the graphical interface after normal startup.
Sure enough, after I finished mounting through mount / dev/cdrom/ / mnt/cdrom, there was a problem writing in / etc/fstab. A small mistake made the system like this. You can enter the password and enter
There is a problem with the mount file written, and there is a problem with boot.
First delete the mount, and then restart the system, the system starts normally.
It is recommended that when making changes to important configuration files, make a backup first. if there is a problem, you can enter rescue mode and restore the original configuration.
The main operations are as follows:
First, enter the root password according to the prompt and log in the rescue mode.
Second, check the disk mount information
Third, comment out the content you have added, and delete it if you are sure it is no longer in use.
Fourth, restart OK.
After reading this article, I believe you have a certain understanding of "what to do when CentOS7.4 boots up welcome to emergency mode". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for your reading!
