[TUHS] Pre-init initialization
gtaylor at tnetconsulting.net
Fri Aug 9 11:46:22 AEST 2019
On 8/7/19 7:04 AM, Clem Cole wrote:
> FWIW: V7 had /stand which was a funky UNIX-like standalone system that
> some applications could be compiled.
I've seen /stand on a few systems (I think SCO OpenServer and / or
UnixWare) but never really knew what it was for. I think I had naively
assumed it was associated with the kernel and / or booting.
Now I'm somewhat more curious what it was. Was it a simplified version
of the OS with minimal utilities with fewer dependencies so that the
system could boot and load more features.
I thought that Linux's initramfs / initrd had the usual suspect files /
utilities copied from /. So the idea that a utility in /stand would be
different from the same utility in / seems strange to me.
> The problem was that it was a little different so you would end up
> seeing #ifdef STAND in code for things like fsck, fsdb, even cat.
> At Masscomp we ended up with three target environments for a couple of
> the system maintenance utilities: the OS, /stand and the boot ROMS.
> This was expensive/a PITA to maintain and keep straight, and in the
> case of the boot ROM, space was a huge problem.
Ya. I can see how that would be a PITA to maintain.
> The RAMFS idea was created to get rid of at least /stand and IIRC we
> were able to drop a number of utilities out of the boot ROM. I'm not
> sure how far they took it. I left for Stellar and it was always the
> way Stellix booted.
Grant. . . .
unix || die
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