Problems with LTS upgrade -- to see if this is common

[Kevin O'Gorman]

On Sat, Aug 18, 2018 at 7:11 PM compdoc <compdoc at hotrodpc.com> wrote:

> On 08/18/2018 08:03 PM, Kevin O'Gorman wrote:
>
> > Problem 2: Grub gets cranky when I start to edit the menu.
>
> I've seen this behavior. I think youre editing a live file that you
> shouldnt. You didnt specify, but you need to be editing /etc/default/grub
>

What I'm editing is whatever GRUB lets me edit.  I'm probably not working
on a file at all.  I'm just using the 'e' key in GRUB to edit an entry in
the menu.  It's a feature of GRUB and it ought to work.

Additionally, I have a bit of progress.  I wondered if there had been a
corresponding bug in the pointers to initramfs, and decided to try
something. The original /dev/sdb2 still booted as normal (that's why I did
this the way I did.)  I took a chance and had it do
update-grub /dev/sdb
and did a reboot.  The menus looked good this time, and indeed I got to my
new Bionic Ubuntu.

I'm suspecting the GRUB in 16.04 just has a bug when it sees the same
version of Ubuntu on two partitions (on the same drive).  Now that
/dev/sdb3 has 18.04, it is not confused and can do the right thing.  It's
possible that if I had done update-grub on 18.04 before I let it reboot,
all would also have been well, with the added benefit that Bionic would be
the default now.  I'll try it.
-- 
Kevin O'Gorman
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