Can't boot notebook from SSD

[Xen]

MR ZenWiz schreef op 22-05-2017 9:12:
> On Sun, May 21, 2017 at 11:42 AM, Pete Smout <smoutpete at gmail.com> 
> wrote:
>> Hi
>> 
>> Sorry for the late entrance, I have just done the same thing to 
>> resolve a
>> similar thing I had to manually select the new ssd from the "bios" 
>> screen (I
>> know that it's not bios anymore but I don't know what else to call it) 
>> on my
>> machine that is press F12 , then it would boot normally if very 
>> quickly,
>> then I ran sudo update-grub and the machine boots every time
>> 
>> Hope this helps
>> 
> I did select the SSD in the BIOS to be the boot drive.  That's how it
> gets to the grub menu.
> 
> However, unless update-grub is in the grub menu or BusyBox, which I
> did not see, I don't see how this can be done.

First provide dmesg output from busybox or parted /dev/sda p or 
something.