This type error occurred when you try to install the Enterprise Linux by using the bootable Flash Drive / Pen Drive / USB Drive. This type of error due to incompatible boot techniques that is not supported by the enterprise Linux . This tutorial provides guides that help you to rectify the error by using this fix. But on important thing you need to follow the steps carefully.

This error looks like

The Given Error occurred when you try to Install EL  from USB Drive and error looks likes as:
dracut

[ OK ] Reached target Basic System.
dracut-initqueue[536]: Warning: Could not boot.
dracut-initqueue[536]: Warning: /dev/root does not exist
         Starting Dracut Emergency Shell...
Warning: /dev/root does not exist
Generating "/run/iniramfs/rdsosreport.txt"
Entering emergency mode. Exit the shell to continue.

It is Due incorrect commands and Software for making bootable USB Stick

  1. If you use the incorrect dd commands
  2. If you use the incompatible Software’s like UnetBootin (For Linux , Windows and MAC) and Universal USB Installer (For Windows only)

These type of error causing during installation of enterprise Linux. These are those aspects for these methods are utilizing to fix these kind of issue. The dd command method and using the best compatible software are used to recover these issues at earlier.

Fixing these Errors:

Method-1 (dd command method)

You must use the dd command from CentOS newer

# dd if=ISO-IMAGE-NAME.iso of=/dev/sdb

Note: For more info about dd command and how to make the PC bootable using dd command has given in this tutorial.

Method-2 (Using compatible software’s)

You must use these Windows Software’s in Windows 10

Note: Don’t use the incompatible Software’s like UnetBootin (For Linux , Windows and MAC) and Universal USB Installer (For Windows only) for making the USB bootable.

The Compatible Software’s are:

  1. Win32 Disk Imager
  2. Rufus
  3. dd for Windows
  4. Fedora LiveUSB Creator
  5. Rawrite32

Congratulation now you have fixed the installation failed during boot time on CentOS and RHEL.