Hi,

I pulled the latest from the simh git hub and built vax730, vax750 and vax780.

I initially tried to install the UWisc 4.3+NFS from a tape image, using a recipe I found. It fails when I try to "newfs ra0h ra81". The error is "write error: 759667"

It looks like the driver is trying to write past the end of the disk; but the rq code in simh is not seeing that.
It does not seem to be throwing any errors.

I'm not sure how to debug this; I added some printfs to pdp_rq.c; There seems to be some debug disk logging inside simh but I can't find any docs about how to use it...

I also tried a stock 4.3BSD distribution and I see exactly the same behavior.

My memory is dim on where the partition info is, but I think in this case it's hard coded in the unix kernel.

I might go back and try some very old simh vax releases, since it seems like this use to work. If anyone has any ideas or insight, I'm all ears.

-brad

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