I have the same problem but I it only occurs if my external hard disk is connected. When I unplug it, the installer continues to the next screen.
dmesg of disk connection: [ 402.455619] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [ 403.003720] scsi10 : SBP-2 IEEE-1394 [ 403.004204] scsi11 : SBP-2 IEEE-1394 [ 403.004335] firewire_core: created device fw1: GUID 0090a90b7648d1b7, S400 [ 403.958545] firewire_sbp2: fw1.0: logged in to LUN 0000 (0 retries) [ 403.976073] scsi 10:0:0:0: Direct-Access WD My Book 1028 PQ: 0 ANSI: 4 [ 403.976566] sd 10:0:0:0: Attached scsi generic sg7 type 0 [ 403.982943] sd 10:0:0:0: [sdg] 625142448 512-byte logical blocks: (320 GB/298 GiB) [ 403.986950] sd 10:0:0:0: [sdg] Write Protect is off [ 403.986960] sd 10:0:0:0: [sdg] Mode Sense: 10 00 00 00 [ 403.990268] sd 10:0:0:0: [sdg] Cache data unavailable [ 403.990276] sd 10:0:0:0: [sdg] Assuming drive cache: write through [ 404.019052] sd 10:0:0:0: [sdg] Cache data unavailable [ 404.019060] sd 10:0:0:0: [sdg] Assuming drive cache: write through [ 404.093715] sdg: sdg1 sdg2 [ 404.357572] sd 10:0:0:0: [sdg] Cache data unavailable [ 404.357580] sd 10:0:0:0: [sdg] Assuming drive cache: write through [ 404.357588] sd 10:0:0:0: [sdg] Attached SCSI disk [ 407.386605] firewire_sbp2: fw1.1: logged in to LUN 0001 (0 retries) [ 407.525494] scsi 11:0:0:1: Enclosure WD My Book Device PQ: 0 ANSI: 4 ** Attachment added: "lshw.gz" https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/694041/+attachment/1880660/+files/lshw.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/694041 Title: Installation hangs after pressing "forward" button on "Preparing installation" page -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
