This bug is also present in netboot installer (text mode, version 20101020ubuntu227, 02-Apr-2013), confirmed 5 minutes ago. I use 3 HDDs, two of which are mdraid mirror. The " swapoff -a" trick didnt work for me, but as Roman Yepishev (thanks rye!) suggested, feedeing two OKs to /var/lib/partman/outfifio helped:
echo OK > /var/lib/partman/outfifio Each OK produced this dmesg line: kernel: [timestamp] brtfs: open /dev/sdf1 failed After two OKs, got into partitioner menu, and the business could be done as usual. Now, /dev/sdf1 is just one of the mdraid (ID:FD) partitions, and it is ext4, WTF brtfs fails on it? Could this be a brtfs module problem? Needles to say, netboot installer is critical for numerous server deployments, PLEASE FIX! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1080701 Title: After 'Preparing to install Ubuntu' screen, raring installation hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1080701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs