Ok, I think found the problem and a solution/workaround: When you ask the installer to partition the free space on the disk it will prompt you with the size of the new partition. Per default this is "500.1 GB". If you first add a smaller Swap and then a second partition this will be smaller, but still something like "482.1 GB".
I you enter by hand "500GB" (or with multiple partitions something that the sum is not bigger than 500GB) than everything works fine and as it should. Maybe 500.1 GB *is* the right number for the 500GB drive but I somehow doubt it and blame the installer for choosing a wrong default value ;-) -- mount: mounting /dev/md0 on /root/ failed: Invalid argument https://bugs.launchpad.net/bugs/569900 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs