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Thread: USB Installation: Detect and mount the CD-ROM Failed?

  1. #1
    Join Date
    Feb 2008
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    13

    USB Installation: Detect and mount the CD-ROM Failed?

    I'm trying to install ubuntu-10.04-server-amd64 from a 2gb usb stick.
    I used Universal-USB-Installer-v1.7.7 to put the contents of the iso onto the usb disc, the installer boots fine but it always fails at "Detect and mount CD-ROM". Any suggestions? I thought about trying to mount the usb stick (/dev/sdb) to the where the installer is looking for the CD-ROM but I don't really know where that is.

  2. #2
    Join Date
    Aug 2010
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    3

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    I just used this with a server installation from “ubuntu-10.04-server-i386.iso” on a usb stick.

    In my case the commands below used
    “/dev/sdb1” as “/dev/<usb drive partition device file>” and
    “/mnt/iso/ubutnu-10.04-server-i386.iso” as “/mnt/usb/<iso file>”
    but yours my vary.

    When you get the screen with “Load CD-ROM driver from removable media?” press ALT-F2 to get a console and enter these commands:

    mkdir /mnt/usb /mnt/iso
    mount –t vfat /dev/<usb drive partition device file> /mnt/usb
    mount –t iso9660 –o loop /mnt/usb/<iso file> /mnt/iso

    ALT-F1 to return to installation dialog and answer as follows:
    Load CD-ROM driver from removable media? <No>
    Manually select CD-ROM module and device> <Yes>
    Module needed for accessing the CD-ROM: none
    Device file for accessing the CD-ROM: /dev/loop0

    OOoops! I realized I misunderstood your question. My solution is for the case when you've got the iso file on the usb stick and you've booted the iso file with GRUB2. Not the case where you've installed to a usb stick and booted from the root of the sitck. But my solution may still work for you if you put the iso file in the root directory of the usb stick.
    Last edited by imcrazy; August 11th, 2010 at 09:14 AM. Reason: misunderstood question

  3. #3
    Join Date
    Mar 2006
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    124

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    Thanks for the tip. I've been trying to figure this out for the past hour and this is the only thing that worked.

  4. #4
    Join Date
    Nov 2006
    Location
    Wisconsin, US
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    87
    Distro
    Ubuntu 14.04 Trusty Tahr

    Talking Re: USB Installation: Detect and mount the CD-ROM Failed?

    imcrazy, ur the man! This worked perfectly. I see you're new to the forums, so thank you for making such a great contribution so soon.

    Peace.
    shakma

    P.S. Canonical - I love you, but you must realize people will be installing from usb drives more than CDs from this point forward. Please update the server installer!

  5. #5
    Join Date
    Feb 2007
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    33
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    Quote Originally Posted by imcrazy View Post
    mount –t vfat /dev/<usb drive partition device file> /mnt/usb
    I'm getting a "device is busy" error on 10.10, which makes sense considering I'm installing from that drive.

    Is there some workaround?

    Thanks for your help =D

  6. #6
    Join Date
    Feb 2007
    Beans
    33
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    Quote Originally Posted by bahdom View Post
    I'm getting a "device is busy" error on 10.10, which makes sense considering I'm installing from that drive.

    Is there some workaround?

    Thanks for your help =D
    Re-made the image with UNet and I no longer get this error. Only now I keep getting the "Failed to copy file from cd-rom" even after following those instructions

  7. #7
    Join Date
    Feb 2007
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    33
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    Ended up downloading 10.4 and using that instead.

    If anyone knows the solution to this issue with 10.10 it would be of general interest I suppose =]

  8. #8
    Join Date
    Oct 2010
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    1

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    Thanks a lot! I am running into the same problem with 10.0.4 LTS so i'm afraid it's not really well supported like the desktop version. I just copied the iso to a separate memory stick and mount the file from there.

  9. #9
    Join Date
    Aug 2007
    Location
    Tampa, FL
    Beans
    44
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    Figured it out.
    Last edited by kendallp; December 30th, 2010 at 07:32 PM.

  10. #10
    Join Date
    Dec 2010
    Location
    East Coast
    Beans
    8
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: USB Installation: Detect and mount the CD-ROM Failed?

    I am having similar issues with installing the 64bit Server LTS version. I tried installing from the CD and it starts but fails to detect the CD Drive. So i downloaded the USB installer but now that will not let me select my RAID partition to install. It wants to install the server to the USB stick. Am I not understanding the USB Installer?


    ##############
    Solved. Hit F6 at main install screen and selected options that caused the installer to search the entire SCSI and ATA bus for CD.
    Last edited by jboris; January 5th, 2011 at 08:44 PM.

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