[HECnet] PDP-11 RSX corrupted tapes: any progress?

[Johnny Billquist]

Hi, Jordi.
Yes, that is definitely a BRU tape.
I have published the tool before, and don't mind sharing it again. But I 
also already have a good copy of C81, I believe.
You are on HECnet, right? Let me know, and I'll just pass it to you there.

	Johnny

On 2016-06-05 10:34, Jordi Guillaumes i Pons wrote:
> Hi Johnny,
>
>> ElMore specifically, I’m looking for an usable COBOL-81 compiler. The one which is not corrupted (cobol_v4_4) is COBOL/C11, not COBOL 81, and even for hobbyist stuff, handling COBOL-74 is a PITA…
>>
>> I wrote a tool that can fix BRU tapes. I can't remember if the Cobol-81 tape is a BRU tape. If it is a DOS-11 tape, then you're in for a lot of headaches...
>
> Well, cobol_81_v3_1.tpc looks like a BRU tape. Going thru ‘strings’ it shows:
>
> VOL1BACKUP                           D%B1111001001                             1
>    ***THIS VOLUME DOES NOT CONTAIN A HARDWARE BOOTABLE SYSTEM ***
> ^L@^LB^L
> HDR1AUT101.A
>            00010001000100 00000 00000 000000DECFILE11A          P
> HDR2U0414404144                     M             00
> AUT101.A
> USER1
> 16OCT90135110
> DECN
>    ***THIS VOLUME DOES NOT CONTAIN A HARDWARE BOOTABLE SYSTEM ***
> ^L@^LB^L
> USER1
> /29NOV88183932
> USER1
> [001,001]   DECFILE11A
> HEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADHEADP
>
> Looks like a BRU-based autoin install kit to me :)
>
> Moreover, the datatrieve 3.3 tape (datatrive_rsx_v3_3a.tpc) seems to be a BRU tape also… I have not checked other files. I remember BP2 2.7 is a DOS-11 tape.
>
> Have you make public your fixing tool? If so, I’ll give it a try…
>
>
>


-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol