Friday, November 30, 2012

How to install Redhat enterprise linux from usb drive

Installing Redhat Linux from DVD is not a huge task unless not going to customize for advance installation. However if you do same using USB drive ,you have some extra work to do. First time when I installed the Redhat Linux through USB drive I faced so many difficulties, so in this tutorial I'm going describe how I avoid those obstacle to made successful installation.

1) download and install "linux live usb creator" from this link

2) format the USB drive with FAT32. open that application and follow the steps mention on that application to create bootable usb drive. it's better un-tick the "Hide created file on key" from options. it will helpful to view all created files on the USB later.
you can test the USB using "mobalivecd" application. link is

3) I have faced the following error message in the middle of the installation

  Missing ISO 9660 Image

  The installer has tried to mount image #1, but cannot find it
  on the hard drive.
  Please copy this image to the drive and click Retry. Click
  Exit to abort the installation.

4) Solution for that error message is putting a redhat iso image into the USB drive.this is crazy but it's only solution i have found so far and it's worked :) .

rhel 6

5) Restart your pc and change boot method to USB

6) Follow Redhat installation steps. after you select the "install or upgrade an existing system" from the menu.
you may get a blinking cursor screen for 10 to 15 mins.pls be patient :-) .

7) Select "Language " , "key borad" according to your preference. once you got the "Redhat installation method" screen make sure to select "Hard drive"

Redhat Linux Installation Method

8) Click "ok" and then you get an screen similar to the following
 it will display all devices connected to your pc. for an example

/dev/sda1   <-- hard disk partition 1
/dev/sda2   <-- hard disk partition 2
/dev/sdb1   <-- USB drive

select your usb's depend on your system , according to above example it is /dev/sdb1 . and click "Ok" to continue.

select partition holds the installation image for red hat linux

9) Follow rest of the steps, and install the Redhat Linux !.


  1. Solved for me.....Thanks a lot !!

  2. Its really great for us, you have to be given the perfect solution so I really thankful for it.

  3. thanks dude.. you are a life saver

  4. Thank you, Saved me some time!

  5. i have a better idea. go to the link bellow ( and follow the instruction how to write download .ISO format to dvd... than burn it into a blank DVD and boot from DVDRom then install centos normally. hope u got a solution... i have done this way... i did it...

  6. I got the same problem as in point 3. After my own tries for 4 hrs and then googling, your post solved the problem. Thank you - Rana

  7. i am using USB to install red hat, it says give the path /dev/sdb1 as ISO image source but there is no such option as image shown above. when i manually give path /dev/sdb1 it does not look into the and return bak screen whihc is dwon
    what can i do

    please hlep

  8. @Muhammad Latif

    What shows on that screen depends on the devices attached to your system. If you booted to the USB and there are no other devices, it is likely that you should select "/dev/sda1". You can try them all, it will find the image file on its own if you leave the Directory line blank.

  9. Hi, I am still having the Missing ISO 9660 image problem.
    1. have formatted USB disk using FAT32 and made it bootable using Unetbootin.
    2. copied the rhel6.iso file to disc.
    after i have completed creating my partitions and selecting where my boot loader will go, the installation halts and the same thing happens.... Plzzz Help me..

  10. Thanks!!!!

    Solution worked for me as well.......

  11. hi
    im getting a problem while installing redhat 6.4 86_64.iso using USB
    i've created bootable usb using dd command in centos6.4
    but when started installation process it is allowing to select Language and Keyboard.... but after that i selected the boot image disk /dev/sda1
    but it is showing following error

    unknow device
    the installation source given by [?dev/sda1] could not be found. please check your parameters and try again

    what should i do?

    1. here sda1 means, usb was mounted as "disk a", in your case it may be another disk (ex dev/sdb1, dev/sdc1 etc ). please check usb mount location.

  12. Thanks Buddy ,It Solved my prob . :)

  13. i had installed rhle 5.0 using usb but it get booted only if usb is connected to the pc otherwise no option comes in bootloader menu

    1. some old motherboard doesn't support usb boot option. please check that as well

    2. can you please help me in that

    3. Sudarshan, when you installed rhel on the pc, during the bootloader target selection, you chose the USB drive instead of the HDD. Hence, the USB drive is now needed to boot. You can resolve this by reconfiguring grub in the installed RHEL with the Pen drive removed.

  14. Thanks Brother!!! It took me almost forever to solve this crappy problem.
    you are a life saver!!
    Thanks again!!

    1. i had installed rhle 5.0 using usb but it get booted only if usb is connected to the pc otherwise no option comes in bootloader menu

  15. Actually the technique works as a replication for a specific file which are getting skipped while we are making the usb bootable... Anyways, great work & definitely thanks a lot :)

  16. Great ,it's working

  17. it works perfectly ,,
    Thanks very much :)

  18. I have usb as a bootable drive using above software now
    Where to put the iso file??
    Please reply me..... I am getting missing iso 9660 error, what to do??

  19. Thank you to the point solution.



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