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Re: VS3100M76 - current



On 2014-05-22 17:54, Holm Tiffe wrote:
Johnny Billquist wrote:

[..]

Hm. I'm booting -current over the net now, will try to using its
installboot.

Back in the 1.5 days, I believe I used disklabel to install the boot
blocks... Check the arguments to disklabel, there are several that are
relevant here...

I've tried installboot and disklabel in several combinations of the
arguments and watched the contens of /dev/rsd0c and wasn't able to
install the boot successfully.

But :-)

The installboot from -current using the sdboot from -current worked
at the first try. I can boot 1.5.3 from the Quantum disk.
The primary bootstrap is rev 1.11 on both systems, dont checked for
differences in the 2nd bootstrap jet..

Excellent.
Thinking more about it, I might actually have been using dd in the end to get the boot block in... :-) I seldom installed a new boot block back then, since once you had one in, it usually worked and you never touched it again.

While watching again that spinner, there MUST be something wrong.
You can't compare the speed of netbooting 1.5.3 and 6-current.
The differene is by factor 100 or more. I've gunzipped several kernels in
the mantime, that really doesn't take that long, even on that slow VAXen.

Is it possible that thre is something wrong with interrupts..?

No idea. I wouldn't suspect interrupts to be the problem, but I can't
really exclude anything.

        Johnny

:-)

Who can..

That booting is really (really!) dog slow. It takes 15-20 minutes at least
where 1.5.3 is up in a minute or two or so..

I bet there are several factors, but the unzipping is most of it, I think.
If I remember right, the spinner moves once for every block read (or n blocks). But the unpacking and moving around will not move the spinner, which is a data point here.

Since this happens while booting from cdrom and from the net (from the same
server) I think something is running in timeouts or so..

Well, the thing in common then is the unpacking. Reading is done through two very different paths...

        Johnny



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