On 29-06-2020 17:53, Hendrik Boom wrote: > 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 The first option disables the check of drives for the presence of (other) filesystems. The second has indeed to do with partitions only and you can ignore that one.
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