[Bug 982430] Re: Regression: Error - Ubuntu-server 12.04 installation as VM on xen-server 6 (use of local iso file)

[Brent]

Using the server x64 ISO

On XENServer 5.5.0 build 25727p:
The virtual machine crashes in the BIOS screen.
VM powers off.

On XEN Server 5.6.0 FP1 build 39265p:
Installer made it to the `Waiting for link-local address; please wait...` Screen.  
Froze at 16%.
I cancelled and continued with the install
Rest of the install worked without issue.
Virtual server seems to be working without issue.  Was able to apt-get update and apt-get upgrade.  
Installed OpenSSH Server and LAMP.

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Title:
  Regression: Error - Ubuntu-server 12.04 installation as VM on xen-
  server 6 (use of local iso file)

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

Bug description:
  It is *not* possible anymore to use a local ubuntu-server-12.04.iso file for off-line installation of VM on XCP 1.5 (xen-server 6).
  The created VM boots first correctly from the iso file and allows keyboard settings etc *but* somewhere later it breakes with the following error message:
  # ---
  Your installation CD-ROM couldn't be mounted. This probably means that the CD-ROM was not in the drive. If so you can instert it and try again.

  Retry mounting the CD-ROM?
  # ---

  This ubuntu-server 12.04 image can be installed on bare metal (HP DL385g7) without any troubles.
  Also ubuntu sever 11.10 iso image can be successfully installed as VM from a local iso file on XCP 1.5.
  I have repeated the test few times and on two different (fresh insalled) XCP hosts.

  Both iso images are saved localy on the XCP host in the following directories:
  /var/opt/xen/iso_import/ubuntu11.10/
  /var/opt/xen/iso_import/ubuntu12.04/

  What has changed in 12.04 compare to 11.10 due to the mounting of CD-
  ROM during the installation? (the CD-ROM label has additional "LTS"
  text for 12.04). It is curious as the image boots in firts phase and
  is "inserted" into the virtual CD drive of XCP 1.5.

  regards, Mark

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