TUHS

tuhs@tuhs.org

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6496 discussions

the Data General ECLIPSE MV/7800XP ... booted from tape! :)

by asbesto

well, another great day! we booted via tape! :))) the problem was that the eclipse need to load the "MICROCODE" before read anything else; and we had 2 problems: 1) the tape head was so dirty that we can feel the dirt on the head touching with a finger! after cleaning it, the tape reader now perfectly! 2) the microcode original tape is ... in horrible conditions! it release magnetic particles touching it, and the tape reader can't read it :((( BUT we found that a microcode copy can be loaded from the hard disk (a 550 mb disk, very big and huge ! :) so, we can now load the microcode from hard disk and, after that, boot the DG/UX installation tape :D AND WE'RE SO HAPPY, SOOO HAPPY, WE LOVE ALL ! :) the main problem is how to do a backup of the whole disk, to preserve the original AOS/VS installation, before trying an installation of DG/UX. Any hint? :) p.s. some images here: http://dyne.org/~asbesto/eclipse/eflags many tnx to eflags for the help (he's the guy in the photos). It's a sort of JESUS. He touch hardware imposing hands, then the hardware magically works. :) -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]

19 years, 8 months

looking for old school hackers

by lm＠bitmover.com

Hi, Sorry if this is spam but in a flash of "well, duh!" insight I realized this is the right place. We're looking for systems people and we really like minimalists. What I tell people when I hire them is "If it's in the 1986 SVID or if it is sockets or mmap, you can use it. Anything else is off limits". And our code works everywhere, we can bring up a new platform in about an hour and our source base is not trivial. We're all C and bourne shell (ok, yeah, some tcl/tk for guis). We're hacking bwk's awk source base (he sent me ~bwk/awk with all the source, tests, the source to the book in english and french, gotta love that) so we can use it to be the front end to our simple database (if you think about it an SQL select statement looks one heck of a lot like an awk program). It's pretty cool, we're making a scripting language for systems people that is small. Kind of what perl would have been if it had been part of V7. Oh, and the language is going to be open source if that's important to you. We are looking for a few solid programmers. We pay well, we're profitable, no debt, no outside investors, stable revenue stream, and we're growing. Our growth is limited by our ability to hire which in turn is limited by my taste. Which is very much in line with this community, small is good, simple is good, complex sucks. We live and die by Brian's comment that debugging is harder than coding so if you were clever when you were coding you are by definition not smart enough to debug the code. What we have to offer is a stable place to work, no crap from idiot managers or money grubbing VC's. What we are working is cutting edge, ping me for information, it's more than what is publicly known. We're in the Bay Area and we want you to be too. If it's a fit we'll pay to relocate you. Please let me know if you are interested. And if you aren't but you know someone who is a good fit we'll cough up a $10K referral fee provided that they last at least one year here. Thanks, -- --- Larry McVoy lm at bitmover.com http://www.bitkeeper.com

19 years, 8 months

A patch for compiling vtserver under linux ...

by asbesto

Compiling vtserver gave me an error: asbesto@gemini ~/pdp11/vtserver $ cc vtserver.c -o vtserver /tmp/ccUTkHRZ.o(.text+0x76e): In function o_command': : undefined reference to rrno' /tmp/ccUTkHRZ.o(.text+0xad6): In function ead_config': : undefined reference to rrno' /tmp/ccUTkHRZ.o(.text+0xb63): In function ead_config': : undefined reference to rrno' /tmp/ccUTkHRZ.o(.text+0xd10): In function etraw': : undefined reference to rrno' /tmp/ccUTkHRZ.o(.text+0xdc1): In function etraw': : undefined reference to rrno' /tmp/ccUTkHRZ.o(.text+0xe7e): more undefined references to rrno' follow collect2: ld returned 1 exit status asbesto@gemini ~/pdp11/vtserver $ This due to the way errno is now used; errno.h has to be included. Here's a patch to compile vtserver 2.3a-20010404 under linux: -------begin-patch-snip-here------ --- vtserver.c 2001-04-04 02:57:38.000000000 +0000 +++ vtserver-linux.c 2005-08-30 20:40:32.000000000 +0000 @@ -74,7 +74,23 @@ #include <unistd.h> #include <stdlib.h> #include <string.h> -char *strerror(int errno); + +#ifdef linux +/* asbesto 30-8-2005 - asbesto(a)freaknet.org + linux need errno.h included. :) +*/ +#include <errno.h> + +/* asbesto 30-8-2005 - asbesto(a)freaknet.org + as errno.h was included, the following line need + to be commented: + char *strerror(int errno); +*/ +#else + + char *strerror(int errno); + +#endif /* Commands sent in both directions */ struct vtcmd { ---------------------end-patch-snap-here--------- maybe this can be included in ftp://minnie.tuhs.org/pub/PDP-11/Vtserver and maybe the version of vtserver has to be changed :) p.s. i'm not so good in C, i quit programming many years ago, i hope this can work ok :))))) hope all this can help. -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]

19 years, 8 months

Help about Data General ECLIPSE MV/7800XP

by asbesto

Hi, here we are back from pdp-11/34 restoration. We haven't installed unix, because we have to prepare a special disk image for V6 to be installed on the RL02 disk (only 10 megabytes :)... now we're working on the Data General we have at our lab in Palazzolo Acreide, a little town in Sicilia (http://poetry.freaknet.org) We had an hardware problem some time ago - the tape had some electrolytic condensers to be changed, the fuse blow out, ecc. ecc., but now we think the main electric part is OK, because the tape start, and try to load the tape ... but using CLI to boot the tape, we have this error: SCP-CLI> boot Boot from what device? [24]: 22 Fatal System Error: Data Channel Bus Timeout AC0 AC1 AC2 AC3 PC CARRY ATU 00000000044 00000200000 00000170360 37700000000 00000000000 0 OFF SCP-CLI> can someone help? We have original DG/UX tapes here, and we want to install them on our disk, that now contain a weird AOS/VS installation (and we have some backup of it in other tapes) sorry for spamming the mailing list - but this list is our only resort :) (and i apologize for my bad, "italian way" english language :))) -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]

19 years, 8 months

Re: [TUHS] the pdp11/34 BOOTED!!! :)))

by chronaut＠juno.com

Wow, thanks for posting the pics, MAJORLY cool ! it's incredible, after 3 years, it BOOTED !!! the images, taken some minutes ago, are here: http://zaverio.net/pdp11 it's INCREDIBLE we removed the cpu boards, we looked all the chips in it ... eating pizza and sicilian food (you can see it in the photos), and we re-inserted them ... and, just for a desperate test, we tried CTRL-BOOT ... and, THE CPU was RUNNING! so we tested all the console cables ... that seem not working ... we found another cable, with a null-modem converter, so we connected an old IBM terminal ... and, it was incredible, we had the CONSOLE CURSOR!!! :))) NOW, the next step is to FIND what was faulty ... a false contact in the board connectors ??? any other hint? :) p.s. tonight we want to install UNIX. :D -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ] ___________________________________________________________________ Try Juno Platinum for Free! Then, only $9.95/month! Unlimited Internet Access with 250MB of Email Storage. Visit http://www.juno.com/value to sign up today!

19 years, 8 months

the pdp11/34 BOOTED!!! :)))

by asbesto

it's incredible, after 3 years, it BOOTED !!! the images, taken some minutes ago, are here: http://zaverio.net/pdp11 it's INCREDIBLE we removed the cpu boards, we looked all the chips in it ... eating pizza and sicilian food (you can see it in the photos), and we re-inserted them ... and, just for a desperate test, we tried CTRL-BOOT ... and, THE CPU was RUNNING! so we tested all the console cables ... that seem not working ... we found another cable, with a null-modem converter, so we connected an old IBM terminal ... and, it was incredible, we had the CONSOLE CURSOR!!! :))) NOW, the next step is to FIND what was faulty ... a false contact in the board connectors ??? any other hint? :) p.s. tonight we want to install UNIX. :D -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]

19 years, 8 months

Weird result about a test on the pdp11/34 ...

by asbesto

Sorry for this, we are here for a 48 hour continued debugging session at Freaknet Medialab, trying to restore this pdp11/34 ... now we discovered this: running a program full of NOP, followed by HALT, it stop after 12 cycles !!! so, if the program start at 1000, and end at 1100 with the HLT istruction ... the CPU STOP showing 1012 !!! and, if we input the program starting from 1400, all NOP, with the HLT at 1500, it stop at 1412! and, sometimes, it stop on address 002002 !!! it seem not executing the HLT ... what can it be ? :( the 128K mos memory M7891 i tried to repair some time ago ? p.s. the program itself is as we wrote in :! if someone can answer in real time, it would be great - we are also on IRC, #pdp11 on ircnet, and ICQ 36294456. :D -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]

19 years, 8 months

can someone help about the pdp11/34 boot ? :(

by asbesto

Hi, is anyone here that can help us booting the pdp11/34 ? :( we're becoming mad :((( the boot loader hangs at 001012. can someone help understand why? we haven't any bus error, and we have no prompt at serial terminal pressing "ctrl-boot" this is the boot code, found in "E-10 Loading Software Bootstrap": location contents 001000 012701 001002 174400 001004 012761 001006 000013 001010 000004 001012 012711 001014 000004 001016 105711 001020 100376 001022 005061 001024 000002 001026 005061 001030 000004 001032 012761 001034 177400 001036 000006 001040 012711 001042 000014 001044 105711 001046 100376 001050 005007 starting it, the display show "1012", i think this mean that he stop at address 001012. why? please someone help, we're here trying to boot it. also, some test code and how-to test is appreciated :) -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]

19 years, 8 months

Original 9 track tape of Unix 7th edition from Bell Laboratories.

by James Falknor

To all concerned, I discovered this little gem up for auction on E-Bay. One of the stickers state that it is Seventh Edition from Bell Labs I have placed a small bid on it ($5.00 US). Advice required: 1. Would it be worth continuing to bid on? 2. What should my highest bid be? 3. Would TUHS be interested in the tape if I should win it? I don't have a tape machine or computer for such tape. Thank you, James Falknor

19 years, 8 months

Debugging a PDP11/34

by asbesto

Hi, can someone give any hint about debugging a PDP11/34 ? If you remember, we had strange hardware problems and the pdp11/34 can't boot anymore. In these days we will do some testing, so ... we need help! :) tnx all p.s. for info about the problem here: http://groups.google.co.jp/group/alt.sys.pdp11/browse_thread/thread/7b11ffe… -- [ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ] [ http://freaknet.org/asbesto http://papuasia.org/radiocybernet ] [ http://www.emergelab.org :: NON SCRIVERMI USANDO LE ACCENTATE ] [ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]

19 years, 8 months

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