Comment 18 for bug 526581

Maybe helpful "snip-it" from syslog:

Apr 27 14:27:43 ubuntu ubiquity: umount: /mnt/migrationassistant: device is busy.
Apr 27 14:27:43 ubuntu ubiquity: (In some cases useful info about processes that use
Apr 27 14:27:43 ubuntu ubiquity: the device is found by lsof(8) or fuser(1))
Apr 27 14:27:43 ubuntu ubiquity:
Apr 27 14:27:44 ubuntu ubiquity: umount: /mnt/migrationassistant: device is busy.
Apr 27 14:27:44 ubuntu ubiquity: (In some cases useful info about processes that use
Apr 27 14:27:44 ubuntu ubiquity: the device is found by lsof(8) or fuser(1))
Apr 27 14:30:53 ubuntu dhclient: DHCPREQUEST of 65.66.84.74 on eth0 to 192.168.0.1 port 67
Apr 27 14:30:53 ubuntu dhclient: DHCPACK of 65.66.84.74 from 192.168.0.1
Apr 27 14:30:53 ubuntu dhclient: bound to 65.66.84.74 -- renewal in 286 seconds.
Apr 27 14:33:51 ubuntu ubiquity[2948]: debconffilter_done: ubiquity.components.partman_commit (current: None)
Apr 27 14:33:51 ubuntu ubiquity[2948]: switched to page partman
Apr 27 14:33:52 ubuntu ubiquity[2948]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 27 14:33:52 ubuntu ubiquity[2948]: switched to page usersetup
Apr 27 14:34:00 ubuntu ubiquity[2948]: debconffilter_done: ubi-usersetup (current: ubi-usersetup)
Apr 27 14:34:00 ubuntu ubiquity[2948]: Step_before = stepUserInfo
Apr 27 14:34:00 ubuntu ubiquity[2948]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 27 14:34:00 ubuntu ubiquity[2948]: dbfilter_handle_status: ('ubi-migrationassistant', 141)
Apr 27 14:34:20 ubuntu ubiquity[2948]: dbfilter_handle_status: response 2
Apr 27 14:34:21 ubuntu ubiquity[2948]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 27 14:34:21 ubuntu ubiquity[2948]: dbfilter_handle_status: ('ubi-migrationassistant', 141)
Apr 27 14:34:27 ubuntu ubiquity[2948]: dbfilter_handle_status: response 2
Apr 27 14:34:27 ubuntu ubiquity[2948]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 27 14:34:27 ubuntu ubiquity[2948]: dbfilter_handle_status: ('ubi-migrationassistant', 141)
Apr 27 14:34:29 ubuntu ubiquity[2948]: dbfilter_handle_status: response 2
Apr 27 14:34:29 ubuntu ubiquity[2948]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 27 14:34:29 ubuntu ubiquity[2948]: dbfilter_handle_status: ('ubi-migrationassistant', 141)
Apr 27 14:34:44 ubuntu ubiquity[2948]: dbfilter_handle_status: response 1
Apr 27 14:34:44 ubuntu ubiquity[2948]: Step_before = stepUserInfo
Apr 27 14:34:44 ubuntu ubiquity[2948]: switched to page summary
Apr 27 14:35:07 ubuntu ubiquity[2948]: debconffilter_done: ubi-summary (current: ubi-summary)
Apr 27 14:35:07 ubuntu ubiquity[2948]: Step_before = stepReady
Apr 27 14:35:07 ubuntu ubiquity[2948]: progress_loop()
Apr 27 14:35:07 ubuntu ubiquity: /lib/partman/init.d/30parted: 235: cannot open /var/lib/partman/outfifo: No such file
Apr 27 14:35:08 ubuntu ubiquity[2948]: debconffilter_done: ubiquity.components.partman_commit (current: None)
Apr 27 14:35:08 ubuntu ubiquity[2948]: switched to page partman
Apr 27 14:35:09 ubuntu ubiquity[2948]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 27 14:35:09 ubuntu ubiquity[2948]: switched to page usersetup
Apr 27 14:35:13 ubuntu ubiquity[2948]: debconffilter_done: ubi-usersetup (current: ubi-usersetup)
Apr 27 14:35:13 ubuntu ubiquity[2948]: Step_before = stepUserInfo
Apr 27 14:35:13 ubuntu ubiquity[2948]: debconffilter_done: ubi-migrationassistant (current: ubi-migrationassistant)
Apr 27 14:35:13 ubuntu ubiquity[2948]: dbfilter_handle_status: ('ubi-migrationassistant', 141)