Re: new SMP kernel on the old Netra X1
On Fri, 2025-09-05 at 11:25 +0200, Jan Engelhardt wrote:
> On Friday 2025-09-05 08:09, John Paul Adrian Glaubitz wrote:
>
> > Please keep in mind that SILO works with blocklists meaning that you
> > can't place the kernel in arbitrary locations and reference them as
> > files.
>
> Not how I remember it.
>
> x86 LILO kept blocklists of the kernel file, so you had to rerun
> it all the time.
>
> SILO on the other hand kept a blocklist on some drivers
> (/boot/*.b), and rerunning silo was only needed when a new
> silo.deb was installed, not when placing kernels.
>
>
> In any case, the boot process seems exceptionally similar between x86
> and SPARC OBP; x86 firmware loads sector 0 and OBP loads sector 1
> (because someone decided to put a disk label at sector 0 instead).
> Once your 512-byte program runs, you have free reign to load
> whatever other code in whatever complex ways you can think of.
You're right, it's the stage2 bootloader that is accessed via blocklists.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
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