On 09/12/2018 19.01, arlen holder wrote:
On Fri, 7 Dec 2018 14:24:55 +0100, Carlos E.R. wrote:

Right, then it is just google on how to repair the MBR :-)
For those that do not know how grub works:

I realize I haven't updated this thread, where, as a courtesy and as a good
Usenet citizen, I usually post an update showing exactly what was done so
as to add to the overall tribal knowledge.

Fact is, I'm moving more cautiously than normal for a couple of reasons,
one being that I now UNDERSTAND what is going on thanks to your input
(plural your).

I'm also cautious because, while I don't care what happens to the Windows
10 on the two older HDDs, I don't want to wipe out the partition as I will
lose the data on those two older HDDs. (Given the Win10 on those two HDDs
were both bricked earlier this year, I've likely pulled "much" of the data
I need that was on them, but I don't know for sure.)

I could just move the data around, given I have 3TB in toto for the three
disks, but what I think I'll do is "gracefully" remove the working Ubuntu
on HDD2, and gracefully remove the working Grub on HDD2, and then, probably
far less gracefully, remove the long-gone bricked Windows 10 on HDD2 and
HDD1.

It should be noted that the Microsoft Store couldn't resurrect either of
those bricked Win10s so there's no reason for me to even try.

The operative word here is "gracefully" remove the working Grub & Ubuntu
and the two non-working Win10 setups.

I have BIOS (not UEFI) but this Ubuntu thread shows the complexity:
https://askubuntu.com/questions/429610/uninstall-grub-and-use-windows-bootloader#869888

No two procedures seem to be alike, which means I need to better UNDERSTAND
the two steps:
a. Gracefully removing the "active" booters (i.e., Grub & Ubuntu on HDD2)
b. Gracefully removing the "bricked" booters (i.e., Win10 on HDD1 & HDD2)

I'll report back when I have done my homework (which includes re-reading
both Carlos' and Paul's helpful hints and reading all their references).

You only need to do something that is safe and fast:

Have all the disks connected. Get to the bios page. Configure which disk
is to boot. Only one disk has to boot, the one that currently has
Windows, hdd3. Done. Boot.

I have been telling this several times, so just do it!




--
Cheers, Carlos.