Seems like a bug -- the installer *should* be wiping the partitions it needs to deal with, provided they are marked to be wiped.
As mentioned in a previous comment, could you get the output of the command 'sudo parted -l' from the installation when it shows the bootloader dialog? You will need to switch to another VT to do this. Seeing all the partitions for all disks maybe we can find what the stale data is. The information is already in the partman log, but quite a lot harder to decipher than looking at parted output. One thing I can think of right now, is that grub-installer is still failing, so that's one place I'm still looking for hints of what might be wrong. I will comment again here once I have another thing to look at; and work in parallel on reproducing the issue on the hardware I have. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1415918 Title: ISST-LTE: Ubuntu15.04: Boot loader installation is failing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1415918/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
