Unable to Install Ubuntu 14.10 GA ISO using NIM Install image

[bugproxy]

Problem Description
====================
Unable to Install Ubuntu 14.10 GA ISO using NIM Install image.

---uname output---
ubuntu 14.10 kernel

Machine Type = Power 8

Steps to Reproduce
=====================
1. Setup Power VM system with one VIOS and 2/3 LPARs created.
2. Boot the LPAR to SMS menu and select network method of installation
3. Start the installation.

Below is the screen output:
1) ---- From SMS menu select network installation ---
Select Device
Device Current Device
Number Position Name
1. - Interpartition Logical LAN
       ( loc=U8284.22A.101B89V-V5-C4-T1 )
--
2) From NIM wiki page get NIM Server details by providing LPARs ip address and mac address
/nim/build_net/tools/pushit lop826.pok.stglabs.ibm.com linuxUbuntu14.10_GA noprompt default Auto Auto no chrp_mp mksysb <email address hidden> b2d2e9f5b404
powervc-svt-nim.pok.stglabs.ibm.com 9.114.254.143
Has been successfully setup for a normal linuxUbuntu14.10_GA install of:
lop826.pok.stglabs.ibm.com
Linux install images are in /nim/install/linuxUbuntu14.10_GA on powervc-svt-nim.pok.stglabs.ibm.com

The nimserver has your network mask and gateway set to:
255.255.252.0
9.114.12.1

3) Booting and Installation process as follows
TFTP BOOT ---------------------------------------------------
Server IP.....................9.114.254.143
Client IP.....................9.114.13.130
Gateway IP....................9.114.12.1
Subnet Mask...................255.255.252.0
( 1 ) Filename................./boot/grub/powerpc-ieee1275/core.elf
TFTP Retries..................5
Block Size....................512

+----------------------------------------------------------------------------+
 |*Install |
 | Rescue |
 | |

  Choose the language to be used for the installation process. The
  selected language will also be the default language for the installed
  system.

  Language:

                                C
                                English

      <Go Back>

 [!!] Select your location

  The selected location will be used to set your time zone and also for
  example to help select the system locale. Normally this should be the
  country where you live.

  Listed are locations for: Asia. Use the <Go Back> option to select a
  different continent or region if your location is not listed.

  Country, territory or area:

                 Bhutan
                 Brunei Darussalam
                 Cambodia
                 China
                 Hong Kong
                 India

      <Go Back>

 [!!] Detect and mount CD-ROM

 Your installation CD-ROM 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.

 Retry mounting the CD-ROM?

     <Yes> <No>

Note: Instead of network install it is falling back to CD install.

Install method: NIM

Install ISO Information: Ubuntu 14.10 GA build NIM Image

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1389113/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[bugproxy (bugproxy)]

/etc/bootptab:
lop826.pok.stglabs.ibm.com:hd=/tftpboot/linuxUbuntu14.10_GA:bf=/boot/grub/powerpc-ieee1275/core.elf:ip=9.114.13.130:ht=ethernet:ha=b2d2e9f5b404:sa=9.114.254.143:gw=9.114.12.1:sm=255.255.252.0:

(0) root @ PowerVC-SVT-NIM: /boot/grub
> cat grub.cfg
set timeout=-1

menuentry Install {
linux /nim/install/linuxUbuntu14.10_GA/install/powerpc64/vmlinux tasks=standard pkgsel/language-pack-patterns= pkgsel/install-language-support=false -- quiet
initrd /nim/install/linuxUbuntu14.10_GA/install/powerpc64/initrd.gz
}

menuentry Rescue mode {
linux /nim/install/linuxUbuntu14.10_GA/install/powerpc64/vmlinux rescue/enable=true -- quiet
initrd /nim/install/linuxUbuntu14.10_GA/install/powerpc64/initrd.gz
}

[bugproxy (bugproxy)]

Any updates on the bug ?
I am also not able to install Ubuntu15.04_daily build on power 8 it is giving the below error

The goal is to find a mirror of the Ubuntu archive that is close to you on the
network -- be aware that nearby countries, or even your own, may not be the
best choice.
Ubuntu archive mirror country:
1: enter information manually [*],
2: United Kingdom,
Prompt: '?' for help, default=1> !
1: enter information manually [*],
2: United Kingdom,
Prompt: '?' for help, default=1> 2

Please select an Ubuntu archive mirror. You should use a mirror in your country
or region if you do not know which mirror has the best Internet connection to
you.

Usually, <your country code>.archive.ubuntu.com is a good choice.
Ubuntu archive mirror:
1: ports.ubuntu.com [*],
Prompt: '?' for help, default=1> 1

If you need to use a HTTP proxy to access the outside world, enter the proxy
information here. Otherwise, leave this blank.

The proxy information should be given in the standard form of
"http://[[user][:pass]@]host[:port]/".
HTTP proxy information (blank for none):
Prompt: '?' for help, default=> !

Checking the Ubuntu archive mirror
!! ERROR: Bad archive mirror

An error has been detected while trying to use the specified Ubuntu archive
mirror.

Possible reasons for the error are: incorrect mirror specified; mirror is not
available (possibly due to an unreliable network connection); mirror is broken
(for example because an invalid Release file was found); mirror does not
support the correct Ubuntu version.

Additional details may be available in /var/log/syslog or on virtual console 4.

Please check the specified mirror or try a different one.
[Press enter to continue]

The goal is to find a mirror of the Ubuntu archive that is close to you on the
network -- be aware that nearby countries, or even your own, may not be the
best choice.
Ubuntu archive mirror country:
1: enter information manually,
2: United Kingdom [*],
Prompt: '?' for help, default=2> 2

Please select an Ubuntu archive mirror. You should use a mirror in your country
or region if you do not know which mirror has the best Internet connection to
you.

Usually, <your country code>.archive.ubuntu.com is a good choice.
Ubuntu archive mirror:
1: ports.ubuntu.com [*],
Prompt: '?' for help, default=1> 1

If you need to use a HTTP proxy to access the outside world, enter the proxy
information here. Otherwise, leave this blank.

The proxy information should be given in the standard form of
"http://[[user][:pass]@]host[:port]/".
HTTP proxy information (blank for none):
Prompt: '?' for help, default=> !

Checking the Ubuntu archive mirror
!! ERROR: Bad archive mirror

An error has been detected while trying to use the specified Ubuntu archive
mirror.

Possible reasons for the error are: incorrect mirror specified; mirror is not
available (possibly due to an unreliable network connection); mirror is broken
(for example because an invalid Release file was found); mirror does not
support the correct Ubuntu version.

Additional details may be available in /var/log/syslog or on virtual console 4.

Please check the specified mirror or try a different one.
[Press enter to continue]

Let me know if ...