On Fri, Jun 01, 2018 at 11:21:06PM +0200, Florian Zieboll wrote:
> Am 1. Juni 2018 22:24:47 MESZ schrieb Haines Brown <haines@???>:
>
> > I installed Jessie on a new disk on a new machine. I can boot it from
> > the GRUB menu on another disk on that machine, but when I try to boot
> > the new disk directly, all I get is a blinking cursor at upper left.
> > Holding down SHFT or ESC during post did not bring up its menu.
> >
> > I tried redoing # update-grub.
>
>
> Depending on how you finished the installation routine, you might need
to not only "update-grub", but also run "grub-install /dev/sdx", where
"x" is the drive letter (without partition number) of your new disk.

Florian, thanks for the suggestion. I ran # grub-install /dev/sda and
this was returned:

     installing for i386-pc platform
     Installation Finished. No errors reported.

I assume that "i386-pc" is appropriate for my 64bit system. The GRUB2
grub-common on this old machine (Devuan Jessie) is same version as that on
the new machine.

Doing Ctl-Alt-F2 while the cursor was blinking did nothing.

Incidentally, I also rechecked the UUID numbers for the / and boot
partitions.

Haines