Comment 2 for bug 1052263

In UbiquitySyslog.txt:

Sep 18 01:00:50 ubuntu grub-installer: info: Calling 'apt-install grub-efi' failed
Sep 18 01:04:23 ubuntu ubiquity[3726]: Reverting lockdown of the desktop environment.
Sep 18 01:04:23 ubuntu activate-dmraid: No Serial ATA RAID disks detected
Sep 18 01:04:23 ubuntu plugininstall.py: log-output -t ubiquity umount /target/cdrom
Sep 18 01:04:23 ubuntu finish-install: Disabling CD in sources.list
Sep 18 01:04:23 ubuntu plugininstall.py: Exception during installation:
Sep 18 01:04:23 ubuntu plugininstall.py: Traceback (most recent call last):
Sep 18 01:04:23 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1724, in <module>
Sep 18 01:04:23 ubuntu plugininstall.py: install.run()
Sep 18 01:04:23 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 81, in wrapper
Sep 18 01:04:23 ubuntu plugininstall.py: func(self)
Sep 18 01:04:23 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 229, in run
Sep 18 01:04:23 ubuntu plugininstall.py: self.configure_bootloader()
Sep 18 01:04:23 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1013, in configure_bootloader
Sep 18 01:04:23 ubuntu plugininstall.py: "GrubInstaller failed with code %d" % ret)
Sep 18 01:04:23 ubuntu plugininstall.py: ubiquity.install_misc.InstallStepError: GrubInstaller failed with code 1
Sep 18 01:04:23 ubuntu plugininstall.py:
Sep 18 01:04:25 ubuntu partman: No matching physical volumes found
Sep 18 01:04:25 ubuntu partman: Reading all physical volumes. This may take a while...
Sep 18 01:04:25 ubuntu partman: No volume groups found
Sep 18 01:04:25 ubuntu partman-lvm: No volume groups found