[Bug 743817] Re: kubuntu i386 natty daily alternate 20110325: error message: Your installation CD couldn't be mounted

[Tim Cuthbertson]

I have the same problem trying to install Ubuntu 11.04 amd64 from an
alternate CD. I have what I think is a closely related problem trying to
install from both Live CD and Live DVD, both of which respond,
"(initramfs) Unable to find a medium containing a live filesystem". I
believe both problems are the same, the CD or DVD is booted, but when
you attempt to install, it has been unmounted.

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https://bugs.launchpad.net/bugs/743817

Title:
  kubuntu i386 natty daily alternate 20110325: error message: Your
  installation CD couldn't be mounted

Status in “debian-installer” package in Ubuntu:
  New

Bug description:
  Binary package hint: debian-installer

  Steps to reproduce:
  1. started system with kubuntu i386 daily alternate CD
  2. chose install
  3. chose language (USA English)
  4. chose country (Canada)
  5. configured the keyboard: USA English
  6. chose keyboard layout: USA English (to add other keyboard layouts later from within KDE)
  7. Detect and mount CD-ROM
  install failure

  The error message was:
  [quote]
  Your installation CD couldn't be mounted. This probably means that the CD-ROM was not in the drive. If so you can insert it and try again
  Try again to mount the CD-ROM
  [/quote]

  Trying again to mount the CD-ROM did not work.

  I believe that the error message was inaccurate for the following reasons:
  1. The CD-ROM was in the drive. I had not removed it. The drive had not opened;
  2. To get this far, the installer had needed to mount and read the CD-ROM;
  3. I was able to verify the disk integrity of this burned CD-ROM in the same drive which could not mount the drive;
  4. I was able later the same day to install successfully an instance of kubuntu i386 maverick desktop from a LiveCD on the same host, using the same CD-ROM drive.

  I had an identical experience a month earlier, on the same machine,
  with a kubuntu i386 natty alternate disk from the daily archive dated
  20110224.