I have SOLVED the above problems #1 by using boot-repair to do install grub2 so we can set the default boot OS to the "current" partition we are booting from.
Notes for Newbies = You can install "boot-repair" as in https://help.ubuntu.com/community/Boot-Repair and use that "boot-repair" instead of "sudo grub-install .........." BUT YOU MUST, 1. READ the whole page thoroughly. 2. You must click on Advance Option and MAKE SURE you select the correct /dev/sd?? ===================== So I think we must execute more commands to make sure it can be done as "boot-repair" can do. But if we execute just the above commands as #1 post, from other partitions or drives it worked successfully. So I still consider it is a "Reports" Bugs still. Dear Gurus, please help to comment and teach us how to do it properly, if the above is considered not a bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/898655 Title: grub-install trashed grub-menu if run on current partition to make current partition to be a default boot up OS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/898655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs