trying to install beta release into existing unused partition -"/usr/share/ubiquity/plugininstall.py", line 1724, in <module>

[alistair taylor]

running the install as either immediate, or from within the livecd gives the same results.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: ubiquity 2.11.30
ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
Uname: Linux 3.5.0-13-generic x86_64
ApportVersion: 2.5.1-0ubuntu4
Architecture: amd64
CasperVersion: 1.321
Date: Sat Sep 8 20:55:09 2012
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
ProcEnviron:
 LANGUAGE=en_GB.UTF-8
 TERM=unknown
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Sasa Paporovic (melchiaros)]

In UbiquitySyslog.txt:

Sep 8 19:53:35 ubuntu ubiquity: W: Duplicate sources.list entry cdrom://Ubuntu 12.10 _Quantal Quetzal_ - Alpha amd64 (20120905.2)/ quantal/main i386 Packages (/var/lib/apt/lists/Ubuntu%2012.10%20%5fQuantal%20Quetzal%5f%20-%20Alpha%20amd64%20(20120905.2)_dists_quantal_main_binary-i386_Packages)
Sep 8 19:53:35 ubuntu ubiquity: W: Duplicate sources.list entry cdrom://Ubuntu 12.10 _Quantal Quetzal_ - Alpha amd64 (20120905.2)/ quantal/restricted i386 Packages (/var/lib/apt/lists/Ubuntu%2012.10%20%5fQuantal%20Quetzal%5f%20-%20Alpha%20amd64%20(20120905.2)_dists_quantal_restricted_binary-i386_Packages)
Sep 8 19:53:35 ubuntu ubiquity: W: You may want to run apt-get update to correct these problems
Sep 8 19:53:35 ubuntu ubiquity: E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
Sep 8 19:53:35 ubuntu grub-installer: info: Calling 'apt-install grub-efi' failed
Sep 8 19:53:45 ubuntu ubiquity[3693]: Reverting lockdown of the desktop environment.
Sep 8 19:53:45 ubuntu activate-dmraid: No Serial ATA RAID disks detected
Sep 8 19:53:45 ubuntu plugininstall.py: log-output -t ubiquity umount /target/cdrom
Sep 8 19:53:45 ubuntu finish-install: Disabling CD in sources.list
Sep 8 19:53:45 ubuntu plugininstall.py: Exception during installation:
Sep 8 19:53:45 ubuntu plugininstall.py: Traceback (most recent call last):
Sep 8 19:53:45 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1724, in <module>
Sep 8 19:53:45 ubuntu plugininstall.py: install.run()
Sep 8 19:53:45 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 81, in wrapper
Sep 8 19:53:45 ubuntu plugininstall.py: func(self)
Sep 8 19:53:45 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 229, in run
Sep 8 19:53:45 ubuntu plugininstall.py: self.configure_bootloader()
Sep 8 19:53:45 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1013, in configure_bootloader
Sep 8 19:53:45 ubuntu plugininstall.py: "GrubInstaller failed with code %d" % ret)
Sep 8 19:53:45 ubuntu plugininstall.py: ubiquity.install_misc.InstallStepError: GrubInstaller failed with code 1
Sep 8 19:53:45 ubuntu plugininstall.py: