30 Aug
2018
30 Aug
'18
8:43 a.m.
AIX takes a lot of shit but there were (and still are) some areas it
was quite a bit ahead of its time.
I haven't used the ROMP 2.0 version that would have been on the IBM
RT.. on my search and todo list. This is interesting because it ran
under a hypervisor.
The 1.x version for x86 PS/2s is basically Locus. I don't like it. I
think it was also used as a common port base for AIX/370 You can run
1.x in VirtualBox with some careful instructions. I'm the canonical
source for all this at http://ps-2.kev009.com/aixps2/
But the 3.x version released with POWER/RS6000 in 1990 had a fully
pagable kernel, loadable kernel modules[1], logical volume management
and disk mirroring, an object oriented thing called the ODM which is
probably extremely controversial but a pretty nice for providing
KPI/KBI/API compatibility for drivers and subsystems and configuration
thereof. It's a good mix of BSD and interesting to see how that was
accomplished https://technologists.com/sauer/Convergence_of_AIX_and_4.3BSD.pdf
[1]
http://bitsavers.org/pdf/ibm/rs6000/aix_3.0/SC23-2207-0_Kernel_Extensions_a…
See for instance page 6-10
Regards,
Kevin
On Wed, Aug 29, 2018 at 6:14 PM, Clem cole <clemc(a)ccc.com> wrote:
Truth is I think IBM beat Sun on getting loadable
modules for the kernel out first. But I was counting the versions that people really
looked at which is why I give Linux credit.
It makes sense they modeled on SunOS btw but the fact is the Linux version is what folks
like *BSD and macOS modeled after later.
Btw you are 100% right - As for launchd I agree/no doubt - but I’d already given up on
MacOS being able to be admin’ed like a Unix box. I can pretty much use it via iterm2 as a
user like one and if mostly works as I expect (which I do appreciate).
Linux is seductive enough to make think I should be able to admin it like I have for the
last 40 years and it then bites me when I least expect it.
Sent from my PDP-7 Running UNIX V0 expect things to be almost but not quite.
> On Aug 29, 2018, at 7:36 PM, Larry McVoy <lm(a)mcvoy.com> wrote:
>
>> On Thu, Aug 30, 2018 at 08:34:05AM +1000, Dave Horsfall wrote:
>>> On Wed, 29 Aug 2018, Clem Cole wrote:
>>> That said, I give the Linux folks great credit for the addition of modules
>>> was huge and it took BSD and the other UNIX systems a few years really
>>> pick up that idea in the same way (yes Solaris, Tru64 and eventually HPUX
>>> etc.. had something too but again - my comment about being generally
>>> available applies).
>>
>> Wasn't SunOS first with dynamic kernel modules, or is my memory worse than
I
>> thought? Linux may have been around at the time, but we never used in the
>> shop until much later (Red Hat, nicknamed Dead Rat).
>
> Yep. And Linux has loadable modules because I posted the SunOS 4.x man
> pages for the SunOS loadable modules to the kernel list. Proving once
> again that the open source guys aren't always the greatest at coming up
> with the ideas but once you show them that it can be done, it gets done
> quickly. I think they had a prototype working in a week.
>
>> Never mind "systemd"; I'm having enough trouble coming to grips
with
>> "launchd" on the Mac... Gimme /etc/inetd.conf any time.
>
> Amen, brother.