On Mon, Jun 29, 2020 at 05:24:57PM +0200, dng@??? wrote:
> On 29-06-2020 17:13, Hendrik Boom wrote:
> > On Mon, Jun 29, 2020 at 12:44:05PM +0000, dal wrote:
> >>> From: Dng [mailto:dng-bounces@lists.dyne.org] On Behalf Of Hendrik Boom
> >>> Sent: den 29 juni 2020 14:18
> >>> What I want to know is:
> >>> What determines which disks' MBRs get written to during a
> >>> normal kernel upgrade initiated by aptitude.
> >> A normal kernel upgrade does not, nor needs to rewrite MBRs.
> > Grub stage 1 resides within 446 bytes of the MBR.
> > Grub stage 1.5 resides in the spae between the MBR and the first partition.
> > Grub stage 2 resides in the /boot within a partition.
> >
> > It's entirely plausible that some of stage 1 and stage 1.5 may need changes.
> >
> > In any case, the last upgrade I did tried to write in the space between
> > the MBR and the first partition of on of my hard drives.
> >
> > I'd like it to stop trying that, letting it write to my other drives and
> > never boot from this one again, which I plan to remove when I find my
> > screwdriver.
> >
> > -- hendrik
> >
> >> /D
> >>
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> > Dng@???
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>
> According to grub documentation you can make grub-mkconfig skip a drive
> with one of these options in /etc/default/grub
>
> 'GRUB_DISABLE_OS_PROBER'
> Normally, 'grub-mkconfig' will try to use the external 'os-prober'
> program, if installed, to discover other operating systems
> installed on the same system and generate appropriate menu entries
> for them. Set this option to 'true' to disable this.
>
> 'GRUB_OS_PROBER_SKIP_LIST'
> List of space-separated FS UUIDs of filesystems to be ignored from
> os-prober output. For efi chainloaders it's <UUID>@<EFI FILE>
That tells it to ignore particular partitions. My partitions are fine,
I have problems with the first few sectors of one hard drive containing
the first few stages of the boot process before it even looks at a
partition. These sectors are not in a partition. I want it to ignore
that entire *drive*, not a partition.
-- hendrik
::
Re: [DNG] Configuration of boot dri…
