On Thu, 1 Apr 2021 10:29:52 +1100
wirelessduck--- via Dng <dng@???> wrote:

>
>
> > On 1 Apr 2021, at 08:27, crichmon@??? wrote:
> >
> > 
> > I’ve had a router/misc./etc. running ASCII for a couple of years,
> > and today I inadvertently rebooted it
> >
> > because I wasn’t playing attention to which host an xterm was
> > logged into. Normally that wouldn’t
> >
> > be a problem, but what happened is that I ended up with a grub
> > minimal command prompt.
> >
> > I’ve no idea why, and what ended up getting my up again was simply
> > exiting the prompt and I
> >
> > got a list of kernels to boot, so I picked the latest and
> > more-or-less I’m back in business.
> >
> > My question is; How did I end up where auto-boot didn’t work?
> >
> > I’ve been very reluctant to update/upgrade precisely because of
> > this sort of thing.
> >
> > Since this box is the main router for the whole house, when it’s
> > down, everything is down.
> >
> > I’ve rebooted in the past without issues, and I don’t think I’ve
> > done anything to cause this,
> >
> > but who knows. Any requests for more details or suggestions are
> > welcome.
> >
> > Thx, Chris
> >
> Unfortunately I don’t know how to help with the current situation,
> but I would definitely recommend installing the molly-guard package
> to hopefully prevent this accidental reboot of wrong machine from
> happening in the future.
>
> https://en.wiktionary.org/wiki/molly-guard
> https://packages.debian.org/sid/admin/molly-guard
>

Hi,
if i recall correctly there where some problems with a grub update
recently. If is that booting with a usb drive and:

mount yourdisk /mnt
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys
mount --bind /dev /mnt/dev
cd /mnt
chroot .
grub-install
update-grub
exit
cd /
umount /mnt/proc
umount /mnt/sys
umount /mnt/dev
reboot

shoud fix it,
Hope this helps.

Ciao,
Tito

P.S.: devuan/debian routers are great!!!