I had the same problem. i removed all the partitions using the ubuntu disk utility and then did
fdisk /dev/sda1 Then i got the following message Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0x6a2a4941. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) Then i did write by typing w After that the problem was gone for me -- 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/ubiquity/+bug/1080701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
