Re: [TUHS] v7 tar and 2bsd.tar

[Clem Cole <clemc@ccc.com>]

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try 1b for the blocking.

On Mon, Jul 27, 2020 at 11:20 PM Will Senn <will.senn@gmail.com> wrote:

> On 7/27/20 10:02 PM, Will Senn wrote:
>
> On 7/27/20 8:14 PM, Clem Cole wrote:
>
> on v7:  dd if=/dev/rrkN of=ucbtar bs=1          <-- this should pull the
> binary with the padded last block in
>
> Your instructions held up until I tried to read from the rk device -
> here's my attach:
>
> in simh:
> set rk0 rk05
> att rk0 ucbtar
>
> then in v7 the rk's aren't in /dev, so:
>
> looked in c.c, rk is major dev 0, and rrk is dev 9, so...
> /etc/mknod /dev/rk0 b 0 0
> /etc/mknod /dev/rrk0 c 9 0
> chmod 640 /dev/*rk*
>
> and
> dd if=/dev/rrk0 of=ucbtar bs=1
> cannot open: /dev/rrk0
>
> Look reasonable?
>
> Will
>
> OK. I remembered that I needed to recompile the kernel, so in addition to
> the above:
>
> in v7:
> chdir /usr/sys/conf
> cc mkconf.c
> mv a.out mkconf
>
> echo rk >> myconf
> cat myconf
> hp
> root hp 0
> swap hp 1
> swplo 0
> nswap 8778
> tm
> 4dc
> rk
>
> mkconf < myconf
> console at 60
> clock at 100
> clock at 104
> parity at 114
> rk at 220
> tm at 224
> hp at 254
> dc at 300
> dc at 310
> dc at 320
> dc at 330
> as - -o l.o l.s
> cc -c c.c
> ld -o unix -X -i l.o mch.o c.o ../sys/LIB1 ../dev/LIB2
> mv unix /munix
>
> rebooted and:
> dd if=/dev/rrk0 of=ucbtar bs=1
> read: Bad address
> 0+0 records in
> 0+0 records out
>

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