Re: grub update and reinstallation

[Graham Seaman <graham@theseamans.net>]

On 02/08/2020 04:31, Tom Dial wrote:
> On 8/1/20 11:09, Graham Seaman wrote:
> > I already reinstalled grub-pc (using a rescue-usb) , that's how I got
> > the system booting again. But I don't know if the current grub is
> > trustable or not.
> My experience, now on eight machines, indicates that it should be if the
> installed, configured, and used versions of grub components is
>
> 2.02+dfsg1-20+deb10u2.
>
> I could be wrong, but here it has been the case for both UEFI (and root
> on ZFS) and legacy boot setups, on both i386 and amd64. The only
> exception is one root-on-ZFS VM that was slightly broken beforehand and
> declines to boot for reasons I am fairly sure are unrelated to grub
> installation.
>
> Tom Dial2.02+dfsg1-20+deb10u2

OK, I have 2.02+dfsg1-20+deb10u2 on 2 debian systems which seem to be 
OK. Thanks for confirming!

2.02~beta2-36 seems to be ok on a UEFI ubuntu system.

Graham


> > Graham
> >
> >
> > > Or get the device name from the debconf database:
> > >
> > > readlink -f $(debconf-show grub-pc 2>/dev/null | grep grub-pc/install_devices: | cut -d ':' -f2)
> > >
> > > Cheers,
> > >         Sven