The same problem here with an Acer AX 3900. The hard disk is an "ATA WDC WD10EADS-00M2BO". I tried to install Ubuntu 12.04 64bits twice and both times it completely broke my partition alignment. Looks like the guided partitioning creates the partitions WITHOUT space before or after them.
Another funny consecuence of this is that the BIOS stops detecting the DVD drive till I fix again the partitions. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/879387 Title: Partitions misaligned on advanced format drive WD20EARX To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/879387/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs