[Solved]Grub booting the wrong partition

Question

Hello everyone and thank you for reading!
This is my first post on this forum (and my first step into arch) so appologies for any newbie symtoms (and bad language).
My problem:
When I start my laptop (press the power button) my system go's into bios and then boots my HDD (that statement is a bit off I know). After that the system stops and grub rescue starts, saying something about a UUID not found (the UUID is nowhere to be found in my system but it could be one from my previous Ubuntu setup).
My system:
An Acer Laptop with a Samsung SSD for OS(sda) and Seagate HDD for storage(sdb)
a 3d gen i5
glorious Nvidia optimus
some more stuff I think is not importend
My attempted solutions:
>Switch the boot-order and put my SSD on top.
   My bios only lets me say "Boot from a disk (hdd and ssd)", "Boot from CD", "Network" ,etc.
>Boot-repair
   Didn't work.
>try setting this right in grub-rescue
   Could work, but I get an error all the time saying "could not find "grub_real_boot_time"" when running "insmod normal".
>wipe the entire HDD clean.
   even with all the HDD partitions deleted, grub still pops up from out of nowhere.
>remove the HDD
   Yes this works the system boots in a blink of an eye.
Last edited by Lacsapix (2014-07-17 10:17:57)

Answer 1

thank you karol!
a simple
sudo dd if=/dev/zero of=/dev/sdb bs=446 count=1
did the trick!