Forum Thread: How to Fix 'Failed to Detect and Mount CD-ROM' Problem When Installing Kali Linux

This guide will help you fix failed to detect and mount CD-ROM problem when installing the latest edition of Kali Linux.

Although there are other guides that exist, I found that the solutions in those guides still did not work when I used the Universal USB Installer to create the bootable USB. After messing with it all weekend, I finally found that if I used Rufus instead, the process worked. I decided to write a post on here so it would pop up on the first page of a google search so people wouldn't have to go through a bunch of crap to find a fix.

Step 1: Use Rufus to Create Your Bootable Kali USB

For this to work, you must use Rufus to create your bootable Kali USB. You can download it here: .

Step 2: Detect and Mount CD-ROM

a. When you get to this point where it says 'your installation CD-Rom couldn't be mounted, unplug the USB from your computer drive and wait 30 seconds before plugging it back in.

b. After plugging the USB back into the drive, wait another 30 seconds then click 'yes' to retry mounting the CD-ROM

Step 3: Missing Firmware

When you get to the part where it notifys you that you're missing firmware, visit the following link and download it onto a different USB device.

(Kali Linux is based on Debian Wheezy)
Choose which ever mirror closest to you

Step 4: Install Missing Firmware

Insert the USB you just downloaded the missing firmware onto into the computer you're installing Kali on. Wait 30 seconds before clicking 'yes' to install the firmware from a removable device.

Step 5: Continue with Installation

You should have no further problems.

10 Responses

what if i dont have another removable device?

You only have one flashdrive? If that's the case, skip the part about installing the firmware and continue with the install. I've had to do it that way before too. Preferably you want that firmware installed I'm assuming.

You can download the firmware missing using the link, then put the downloaded firmware into the firmware folder in the boot bootable Kali in your pen drive or SD card then try installing the Kali Linux

Unplugging and pluggng it back isn't working.
Any other ways!

If You Are Facing The Same Problem Then Use Software (Instead of RUFUS) And Follow The Step

  1. Format Your Drive With NTFS
  2. Select The Linux ISO
  3. Browse The ISO Media To Boot Example (KALI.ISO)
  4. Then Click Go
  5. After Completing The File Copying In Pen Drive Use Your Pen Drive For Boot
  6. Now You Will See Your Problem Will Be Solved

The better think is use Rufus and use
dd image to create bootable media done

All the way does not work for me.
Is it because my laptop does not have a cdrom?
Does it matter?
Pls answer.

For those using Windows 10, make sure to be in windows logged in, hold shift down and and then navigate to power>restartPC. This will bring up the UEFI boot menu, go to advance options and select the UEFI option. Your pc will reboot to Bios, make sure full USB support is enabled instead of partial under boot options, click save settings and reboot after setting the boot priority to only your USB.

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