Oracle Linux – How to create /dev/zero after accidentally deleted

APPLIES TO:

Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9]

Linux x86_64 on Oracle Public Cloud

 

GOAL:

Create the character device /dev/zero which was deleted by error.

This is not an essential character device for Linux to work properly, is mostly used to create dummy files and wipe out disks

 

Symptoms

[root@alejanarol7 ~]# dd if=/dev/zero of=./myfile.out bs=1M count=100 status=progress
dd: failed to open ‘/dev/zero’: No such file or directory
 
[root@alejanarol7 ~]# ls -l /dev/zero
ls: cannot access /dev/zero: No such file or directory

 

SOLUTION:

After /dev/zero was deleted by mistake now we need to create it.