On Mon, Jun 29, 2020 at 05:24:57PM +0200, d...@d404.nl 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-boun...@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 > >> > >> _______________________________________________ > >> Dng mailing list > >> Dng@lists.dyne.org > >> https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng > > _______________________________________________ > > Dng mailing list > > Dng@lists.dyne.org > > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng > > 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 _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
