18 Nov
2013
18 Nov
'13
12:28 a.m.
On Sun, 17 Nov 2013, Peter Corlett wrote:
On Fri, Nov 15, 2013 at 04:39:01AM -0500, Mark
Longridge wrote:
...or accidentally supply termpwr from both host adapters...the results of
doing so with some host adapters aren't pretty ;)
Some of the earlier PC compatible host adapters had a small
removable/replaceable fuse which helped prevent damage to cabling or board
traces, but some of the less expensive boards have little or no such
protection (the later, better designed boards often used a self-resetting
fuse [polyfuse]). A 28-26AWG wire in the typical SCSI cable just isn't
capable of supplying very much current.
In my quest to find earlier versions of APL\11 I
have come across
something called yale-apl, which is most likely from the Unix version 6
era. I can run Unix v6 under simh but I am at a loss on how to transfer
binary or even text files into it. I have been able to transfer files
from a Unix v7 without difficulty but v6 seems to be quite different.
There is no tar utility in v6.
Does anyone have any ideas?
v6 has ar(1):
http://man.cat-v.org/unix-6th/1/ar
The BUGS at the end are severe enough that you should read them and take
heed when creating an archive on a modern system.
Another wheeze which I've used for file transfer a few times is to plug
the disk into a Linux box and mount the filesystem directly. I've even
plugged a machine's external SCSI connector into a SCSI card on my PC,
which lets both machines access the disk simultaneously. You obviously
need to be *very* careful to not simultaneously mount the same
filesystem from both machines.