TUHS

tuhs@tuhs.org

16 participants
6536 discussions

Re: [pups] missing space in 2.11_rp_unknown

by Christian Groessler

Hi, On 02/26/2002 03:29:07 PM PST "Steven M. Schultz" wrote: > > Mmmm, I wonder if the problems you were having were caused by > /dev not being correctly populated. Maybe. I noticed they're missing and recreated them by hand. Perhaps I made a mistake there. >> $ df >> Filesystem 1K-blocks Used Avail Capacity Mounted on >> /dev/xp0a 7816 2658 5158 04% / >> /dev/xp0g 151625 117599 34026 08% /usr >> $ >> >> Btw, the capacity values look a bit strange? > > Yes, they do look (more than a little bit) strange. > > On my system here (a P11 based emulated PDP-11 - I have a real 11/73 > but it is only powered up when I'm actively testing): > >Filesystem 1K-blocks Used Avail Capacity Mounted on >/dev/xp0a 8228 3163 5065 38% / >/dev/xp0h 155328 84188 71140 54% /usr > > What patchlevel did you mention the system was at? There were a lot > of patches issued after the ' 2.11_rp_unknown' image was created. > One thing, which probably will not make any difference, to try would > be to recompile 'df' (and possibly 'libc') and see if the problem > changes. Looks like it's a math error of some kind so either > the compiler/libraries are broken or P11's having a problem doing > arithmetic. It's a problem of the p11 emulator I use. I got a patch off-list which fixed it. It was some signed/unsigned thing. Regarding the patchlevels, how do I find out which patchlevel my system is at? regards, chris

23 years, 4 months

v7upgrade 0.0.2

by Rhys Weatherley

I've uploaded version 0.0.2 of "v7upgrade" to my Web site: http://www.southern-storm.com.au/v7upgrade.html It is now possible to run a stripped-down v7 userland environment on top of a Linux/i386 kernel, using the v7 Bourne shell. A good chunk of the "shellutils" programs have now been upgraded, including all of your usual favourites (cat, chmod, cp, date, dd, diff, echo, kill, ls, mkdir, mv, od, rm, rmdir, among others). Getting the Bourne shell to work on top of Linux was quite the adventure, to say the least. S.R. did some very naughty things in that code. :-) The code also compiles cleanly for the bcc/8086 target, although I don't yet have a v7 kernel to run it on yet. Cheers, Rhys.

23 years, 4 months

[pups] Memory Error 46 on a PDP 11/73

by Nutech

Hello, I am getting the following error when I try to boot my PDP. The Card details for the CPU and the Memory Board are as under. Here are the details of the Various cards. Slot 1(ABCD) KDJ11-BB (M8190) Slot 2(ABCD) MSV11-QA(M7551) Slot 3 (AB) M3107 Slot 3 (CD) Blank Slot 4 (AB) Solna prinitng machine card Slot 4 (CD) BIT Scandiavia card Slot 5 (AB) Blank Slot 5 (CD) M7555 Can some one please guide what I can do besides replacing the old card with a new card. Regards, Shroff Testing in progress - Please wait 1 2 3 4 5 6 Error 46 Memory Error See troubleshooting documentation Error PC = 173242 PCR page = 15 Program listing address = 015242 R0 = 060000 R1 = 125252 R2 = 125652 R3 = 052525 R4 = 001000 R5 = 040000 R6 = 172300 Par3 = 034000 Expected data = 125252 Bad data = 125652 Address = 03400000 Command Description 1 Rerun test 2 Loop on test 3 Map memory and I/O page Type a command then press the RETURN key: 3 Memory Map Starting Ending Size in CSR CSR Bus Address address K Bytes address type type 00000000 - 03777776 1024 17772100 Parity Qbus Press the RETURN key when ready to continue I/O page Map Starting Ending Address address 17760440 - 17760456 17765000 - 17765776 CPU ROM or EEPROM 17772100 Memory CSR 17772150 - 17772152 17772200 - 17772276 Supervisor I and D PDR/PAR's 17772300 - 17772376 Kernel I and D PDR/PAR's 17772516 MMR3 17773000 - 17773776 CPU ROM 17777160 - 17777166 17777520 - 17777524 BCSR, PCR, BCR/BDR 17777546 Clock CSR 17777560 - 17777566 Console SLU 17777572 - 17777576 MMR0,1,2 17777600 - 17777676 User I and D PDR/PAR's 17777744 - 17777752 MSER, CCR, MREG, Hit/Miss 17777766 CPU Error 17777772 PIRQ Press the RETURN key when ready to continue I/O page Map Starting Ending Address address 17777776 PSW Press the RETURN key when ready to continue Error 46 Memory Error See troubleshooting documentation Error PC = 173242 PCR page = 15 Program listing address = 015242 R0 = 060000 R1 = 125252 R2 = 125652 R3 = 052525 R4 = 001000 R5 = 040000 R6 = 172300 Par3 = 034000 Expected data = 125252 Bad data = 125652 Address = 03400000 Command Description 1 Rerun test 2 Loop on test 3 Map memory and I/O page Type a command then press the RETURN key:

23 years, 4 months

Re: [pups] missing space in 2.11_rp_unknown

by Steven M. Schultz

Hi! > From: Christian Groessler <cpg(a)aladdin.de> > > Did you use dump+restor? > > No, tar. I tried again with dump and restor and now it works! Thanks > for the hint! I seldomly use dump/restore. Ah ha! For moving filesystems dump+restor or 'afio' need to be used. Dump+restor also have the advantage of preserving the file flags (see chflags(2) and chflags(1)) - other utilities do not preserve that metadata. The other thing that dump+restor (or afio) handle correctly is the special files in /dev. 'tar' does not know how to archive files such as "/dev/rp0a". Mmmm, I wonder if the problems you were having were caused by /dev not being correctly populated. > Now there's enough space in /: > > $ df > Filesystem 1K-blocks Used Avail Capacity Mounted on > /dev/xp0a 7816 2658 5158 04% / > /dev/xp0g 151625 117599 34026 08% /usr > $ > > Btw, the capacity values look a bit strange? Yes, they do look (more than a little bit) strange. On my system here (a P11 based emulated PDP-11 - I have a real 11/73 but it is only powered up when I'm actively testing): Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/xp0a 8228 3163 5065 38% / /dev/xp0h 155328 84188 71140 54% /usr What patchlevel did you mention the system was at? There were a lot of patches issued after the ' 2.11_rp_unknown' image was created. One thing, which probably will not make any difference, to try would be to recompile 'df' (and possibly 'libc') and see if the problem changes. Looks like it's a math error of some kind so either the compiler/libraries are broken or P11's having a problem doing arithmetic. Cheers, Steven Schultz sms(a)2bsd.com

23 years, 4 months

Re: [pups] missing space in 2.11_rp_unknown

by Christian Groessler

Hi, On 02/25/2002 09:16:31 AM PST "Steven M. Schultz" wrote: > >Hi - > >> > I see Greg mentioned running fsck. That sounds like an excellent >> > suggestion. >> >> Yes, but it didn't help :-( > >> What can this be? > > It might be necessary to use the '-s' option . "fsck -s" will > unconditionally rebuild the freelist. This didn't work either. > >> I tried something else, I copied the contents of the root fs >> elsewhere, newfs'd the root partition and copied the contents back. > > Did you use dump+restor? No, tar. I tried again with dump and restor and now it works! Thanks for the hint! I seldomly use dump/restore. Now there's enough space in /: $ df Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/xp0a 7816 2658 5158 04% / /dev/xp0g 151625 117599 34026 08% /usr $ Btw, the capacity values look a bit strange? regards, chris

23 years, 4 months

Re: [pups] missing space in 2.11_rp_unknown

by Steven M. Schultz

Hi - > > I see Greg mentioned running fsck. That sounds like an excellent > > suggestion. > > Yes, but it didn't help :-( > What can this be? It might be necessary to use the '-s' option . "fsck -s" will unconditionally rebuild the freelist. > I tried something else, I copied the contents of the root fs > elsewhere, newfs'd the root partition and copied the contents back. Did you use dump+restor? > But now booting stops when it normally starts init, > Oh no! > ------------- > : unix > Boot: bootdev=05010 bootcsr=0176700 > > 2.11 BSD UNIX #1: Fri Feb 15 18:47:18 PST 2002 > chris@pdp11:/usr/src/sys/PDP11CPG > > attaching qe0 csr 174440 > qe0: DEC DEQNA addr 08:00:2b:07:82:6c > attaching lo0 > > phys mem = 2097152 > avail mem = 1647872 > user mem = 307200 > > ------------- > > ... and here it hangs. Do I have to consider something else when I > newfs the root partition? The boot block, /boot, /unix, /netnix and /etc/init, /bin/sh are intact since the system got as far as printing the memory numbers. After the memory stats the '/etc/autoconfig' process should be run ('init' runs it) and the device probes should take place. The only thing I can think of (and it's a wild guess) is that the "clock" isn't running - thru the boot process clock interrupts aren't used but when 'init' goes to run 'autoconfig' the system nees clock interrupts in order to drive the context switching. Either the clock isn't running or /etc/autoconfig got corrupted somehow in the copying. Steven Schultz sms(a)2bsd.com

23 years, 4 months

Re: [pups] missing space in 2.11_rp_unknown

by Christian Groessler

Hi, On 02/22/2002 07:31:49 PM PST "Steven M. Schultz" wrote: > >> From: Christian Groessler <cpg(a)aladdin.de> >> I'm running above image with the p11 emulator, and the root partition >> is almost full. >> >> # df >> Filesystem 1K-blocks Used Avail Capacity Mounted on >> root 7816 7030 786 10% / >> >> but looking at files, I only see 2MB+ in use: >> >> # du -s / >> 2702 > > I see Greg mentioned running fsck. That sounds like an excellent > suggestion. Yes, but it didn't help :-( What can this be? I tried something else, I copied the contents of the root fs elsewhere, newfs'd the root partition and copied the contents back. But now booting stops when it normally starts init, ------------- : unix Boot: bootdev=05010 bootcsr=0176700 2.11 BSD UNIX #1: Fri Feb 15 18:47:18 PST 2002 chris@pdp11:/usr/src/sys/PDP11CPG attaching qe0 csr 174440 qe0: DEC DEQNA addr 08:00:2b:07:82:6c attaching lo0 phys mem = 2097152 avail mem = 1647872 user mem = 307200 ------------- ... and here it hangs. Do I have to consider something else when I newfs the root partition? regards, chris

23 years, 4 months

[pups] PDP 11

by Nutech

I post this message with hope that someone out there can help me with a problem I have at hand. My company recently bought a preowned printing machine, which uses a PDP11/73 BA23 connected to a VT240 terminal to control the functions of the machine. Needless to say that we are unable to make the PDP run since we have no knowledge of the machine and have no one to look upto for guidance.. While we are able to power on the PDP, the VT240 is dead. Looking for help I came across your site and got the feeling that you might be able to help me out of my current deliema. While I have the original program disks, I have NO operating disks or knowledge of what OS is on the PDP. The printing machine is controlled by the PDP thru 4 serial ports (TT0 thru TT3), the machine has a total of 8 ports, 4 are left unused. PLEASE HELP. Regards, Shroff repro(a)nutechgroup.net

23 years, 4 months

Re: [pups] missing space in 2.11_rp_unknown

by Steven M. Schultz

Hi! > From: Christian Groessler <cpg(a)aladdin.de> > I'm running above image with the p11 emulator, and the root partition > is almost full. > > # df > Filesystem 1K-blocks Used Avail Capacity Mounted on > root 7816 7030 786 10% / > > but looking at files, I only see 2MB+ in use: > > # du -s / > 2702 > This persists over reboots, so it doesn't seem to be a large deleted > file which is still in use. It might be a corrupt freelist. If that is the case then running fsck will detect that fact and reclaim the space by rebuilding the freelist. > Where is the missing space? My guess is it's "missing" - that can happen if the system's shutdown (or the emulator terminated) prematurely. In that case the freelist metadata might not have been updated. I see Greg mentioned running fsck. That sounds like an excellent suggestion. Cheers, Steven Schultz sms(a)2bsd.com

23 years, 4 months

[pups] missing space in 2.11_rp_unknown

by Christian Groessler

Hi, I'm running above image with the p11 emulator, and the root partition is almost full. I tried to clean it up, but I cannot find where the space is used. df says: -------- # df Filesystem 1K-blocks Used Avail Capacity Mounted on root 7816 7030 786 10% / -------- but looking at files, I only see 2MB+ in use: -------- # du -s / 2702 -------- This persists over reboots, so it doesn't seem to be a large deleted file which is still in use. Where is the missing space? regards, chris

23 years, 4 months

Re: [TUHS] 4.4BSD-Lite binaries for SPARC and PMAX

by Warren Toomey

> Warren, maybe you know a PUPS volunteer in the USA that has appropriate > equipment and experience to do this job? This would also reduce shipping > efforts and cost for Mr. McKusick. (And risk of damage of the tapes, as > it would avoid shipping across the "big pond".) I've just sent some mail to Tim Shoppa, asking if he would be willing to read the tapes for us. Cheers, Warren

23 years, 4 months

v7 upgrade

by Rhys Weatherley

Hi, I've been lurking here for a week or two, reading the archives on porting v7 to x86, etc. On a lark, I downloaded the v7 sources and started to "upgrade" them so the userland can build and run on top of modern OS kernels such as Linux. The bulk of libc is the same (warts and all), with the "sys" layer replaced with modern syscalls. Perhaps it is a bit "sacrilegious", but I believe it makes the code more accessible for experimentation, and it should solve the "how do we get a PDP-11 compiler" problem: we use the original hosted on top of a modern kernel as a cross-compiler. Check it out and let me know what you think. Most of the libraries have been upgraded, with a handful of the simpler command-line utilities. http://www.southern-storm.com.au/v7upgrade.html Cheers, Rhys.

23 years, 4 months

I N T E R N E T I N C O M E ! ! !

by casanndra2002＠yahoo.com

23 years, 4 months

Legal ramifications putting certain things on my web site?

by Derrik Walker v2.0

I've started porting some of the old UNIX programs to Mac OS X. I've got about 1/2 the games, that should be ok, but I also have other things like crypt and makekey. I'd like to make these available in binary form, but I don't want the men in black knocking at my door either... Any thoughts? On a side note, I simply can not believe how easy it is to compile this old code under Mac OS X. for some of it, it's proving easier than porting Linux code ( if you've only known how long I worked on linux's fortune, and the old one just compiled no fuss, no problems ). Also, if your wandering why ... that's easy, because I can. Thanks. - Derrik firebug(a)apk.net http://junior.apk.net/~firebug --------------------------------------------------------------------------------------------------- The number of UNIX installations has grown to 10, with more expected. -- The Unix Programmer's Manual, 2nd Edition, June 1972

23 years, 4 months

[pups] PDP11-23

by Pieter Visser

Hello, I ám still have a working Dec pdp11-23. It runs on CTS-300 with 10 Mb Harddisk and a Tape drive for back-ups I think the programm is writen in dibol. I f you want more information about this system please reply by email If anyone can help me with the following questions. Can i connect an windows/dos sytem to the pdp11-23 and run the program. Is it possible to copy the program and run it on a Windows/Dos based machine. Hope to hear from sombody, Pieter Visser The Netherlands e-mail p.visser(a)tip.nl handy +31-(0)6-53630275 phone +31-(0)165-313597 work +31-(0)76-5022800 fax +31-(0)76-5022090

23 years, 4 months

Re: Porting Unix v6 to i386

by Aaron J. Grier

On Fri, Feb 01, 2002 at 10:24:30AM +0000, P.A.Osborne wrote: > The reason I want the compiler is that it will generate standalone 16 > bit code on a sensible platform. GCC doesnt produce 16 bit code as > far as I am aware - so personally I thought it would be amusing (I > must be mad) to use tools that run under DOS (well OS/2). support for PDP-11 was added to gcc a few months ago. I don't think it's been well tested, but support exists in current versions of binutils and gcc. http://pdp11.nocrew.org/ there's also support for the m68hc11/12 which are 16-bit. it seems like support for 80{,1,2}86 in gcc should be possible; it just hasn't been done yet. another compiler that might be worth looking at is SDCC http://sdcc.sourceforge.net/ which is currently targeted towards 8-bit MCUs. of course bootstrapping via the original K&R compiler would be the "classic" way to do it, though. ;) -- Aaron J. Grier | "Not your ordinary poofy goof." | agrier(a)poofygoof.com "[...] I generally haven't found IDM guys to be very good live acts, most of them just sit down at their laptop and tweak reaktor." -- Brandon Daniel

23 years, 4 months

Re: [TUHS] Re: Porting Unix v6 to i386

by John Holden

Aaron J. Grier wrote :- > support for PDP-11 was added to gcc a few months ago. It's been around since 1991 as a patch, but it didn't keep up with the newer versions of gcc

23 years, 4 months

Re: [pups] screen 3.9.9 vs. 2.11BSD write() to fifo and/or select() on socket

by Steven M. Schultz

Hi - > From: David W Talmage <talmage(a)cmf.nrl.navy.mil> > I thought that I'd read in the FM that they do. I see now that I was > mistaken,perhaps delusional. I see now that <sys/stat.h> contains the gospel: > > #define S_IFIFO 0010000 /* named pipe (fifo) - Not used by 2.11BSD */ :) Adding FIFOs to the kernel would make an interesting project though - perhaps when I become inspired/motivated I'll give it a try. > Sounds like I'm in for some deep hacking if I continue with this. Will > overlays help me here? Overlays will help if the code comes out to more than 64KB. Alas, overlays will _not_ help the dataspace requirements. The last time I looked at 'screen' I saw things like "char buf[32768];' sprinkled thru the code. So you might be in for some serious hacking to trim back the sizes of arrays/buffers/etc. It probably would also be a good idea to 'string'ify the program (there are tools to assist doing this - take a look at how sendmail and lint are built). > I wonder if setitimer() will fare any better. alarm() is obsolete. The gospel according to /usr/src/lib/libc/gen/alarm.c says: /* * Backwards compatible alarm. */ #include <sys/time.h> #include <unistd.h> unsigned int alarm(secs) unsigned int secs; { struct itimerval it, oitv; register struct itimerval *itp = ⁢ timerclear(&itp->it_interval); itp->it_value.tv_sec = secs; itp->it_value.tv_usec = 0; if (setitimer(ITIMER_REAL, itp, &oitv) < 0) return (-1); if (oitv.it_value.tv_usec) oitv.it_value.tv_sec++; return (oitv.it_value.tv_sec); } <g> > I'll send a progress report if I decide to continue this project. Thanks for > your help, Mr. Schultz. What I think you're seeing is the race condition that fork() has - there is no guarantee which process (parent or child) runs first. The test program does the fork() and the child runs to completion before the parent enters the select(). At that point the parent will wait until the alarm goes off. One thing you might try is create two separate programs. One would create the socket and wait for the other program to connect and send a string. If that works it shows that the UNIX domainsockets are working as expected and that the fork() race is indeed the problem. IF the client/server tests fail then there is something wrong in the UNIX domain socket handling that needs to be addressed. Good Luck! Cheers, Steven Schultz

23 years, 5 months

Re: [pups] screen 3.9.9 vs. 2.11BSD write() to fifo and/or select() on socket

by Steven M. Schultz

Hi! > From: David W Talmage <talmage(a)cmf.nrl.navy.mil> > Would someone please advise me about fifos and sockets in 2.11BSD? Ok ;) Don't use fifos - they don't exist (as you probably have found out by now :)) > I'm having > trouble porting screen 3.9.9, the multiplexing terminal emulator, to 2.11BSD fifos and sockets are just the tip of the iceberg when it comes to 'screen'. Eons ago (when screen was a fairly new program) I made an attempt at porting it and ran into the address space problems - seems that screen wants to use lots of large buffers, has lots of strings (all the help, etc) and so on. > because of them. I'm running Mr. Schultz's 2.11BSD with all patches up to > #442 on Mr. Brandt's p11 emulator version 2.9. FWIW, I have INET in my kernel > but I've ifconfig-ed only lo0. Thanks for the "ownership" label but I think of it more as being a 'steward' and coordinator than anything else p11 2.9? Wow, I've an old patched/hacked 2.5 because I can't seem to find p11's home now - begemot.org doesn't mention anything about "p11". > The fifo test portion of the configure script fails when writing to the fifo. > The write() returns -1 and sets errno == 79, "Inappropriate file type or Right, FIFOs don't exist. One of those things I never could find the need or time for ;) > format". This happens when I run the test as root, as I must in order to use > mknod() to create the fifo. See fifotest.c, below. If 2.11's mknod can create fifos that is _news_ to me. I don't recall seeing (or adding) that capability. > screen can use sockets instead of fifos. That portion of the configure script > fails as well. It fails in that it does not return from the select() on the > socket until the alarm goes off. See socketstest.c, below. Now that is very strange. Unix domain sockets do work (syslogd uses them for example) so I'm at a loss to explain why the test program isn't working. One thing I did do is after running "./a.out&" was do an immediate 'ps'. That should see 2 a.out processes due to the 'fork()' call. I only say one. This tells me that the alarm was started (obviously since alarm(5) is the first thing executed) but the child process raced thru and exited before the parent got to the select() call. With the child exited the select() will block until interrupted by the alarm() call. Steven Schultz sms(a)2bsd.com

23 years, 5 months

[pups] screen 3.9.9 vs. 2.11BSD write() to fifo and/or select() on socket

by David W Talmage

Would someone please advise me about fifos and sockets in 2.11BSD? I'm having trouble porting screen 3.9.9, the multiplexing terminal emulator, to 2.11BSD because of them. I'm running Mr. Schultz's 2.11BSD with all patches up to #442 on Mr. Brandt's p11 emulator version 2.9. FWIW, I have INET in my kernel but I've ifconfig-ed only lo0. screen's configure complains that it finds no usable fifo or socket. The fifo test portion of the configure script fails when writing to the fifo. The write() returns -1 and sets errno == 79, "Inappropriate file type or format". This happens when I run the test as root, as I must in order to use mknod() to create the fifo. See fifotest.c, below. screen can use sockets instead of fifos. That portion of the configure script fails as well. It fails in that it does not return from the select() on the socket until the alarm goes off. See socketstest.c, below. /* fifotest.c */ #include "confdefs.h" #include <sys/errno.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> /* #ifndef O_NONBLOCK #define O_NONBLOCK O_NDELAY #endif #ifndef S_IFIFO #define S_IFIFO 0010000 #endif */ char *fin = "/tmp/conftest254"; main() { struct stat stb; int f; (void)alarm(5); #ifdef POSIX if (mkfifo(fin, 0777)) { #else if (mknod(fin, S_IFIFO|0777, 0)) { #endif printf("mknod failed\n"); perror("mknod"); exit(1); } if (stat(fin, &stb) || (stb.st_mode & S_IFIFO) != S_IFIFO) { printf("stat failed\n"); exit(1); } close(0); #ifdef __386BSD__ /* * The next test fails under 386BSD, but screen works using fifos. * Fifos in O_RDWR mode are only used for the BROKEN_PIPE case and for * the select() configuration test. */ exit(0); #endif if (open(fin, O_RDONLY | O_NONBLOCK)) { printf("open #1 failed\n"); exit(1); } if (fork() == 0) { printf("f0\n"); close(0); if (open(fin, O_WRONLY | O_NONBLOCK)) { printf("f0 open #2 failed\n"); exit(1); } close(0); if (open(fin, O_WRONLY | O_NONBLOCK)) { printf("f0 open #3 failed\n"); exit(1); } if (write(0, "TEST", 4) == -1) { /* FAILS HERE */ printf("f0 write failed %d\n", errno); perror("write"); exit(1); } exit(0); } printf("f1\n"); f = 1; if (select(1, &f, 0, 0, 0) == -1) { printf("f1 select failed\n"); exit(1); } exit(0); } /* socketstest.c */ #include <sys/types.h> #include <sys/socket.h> #include <sys/un.h> #include <fcntl.h> char *son = "/tmp/conftest254"; main() { int s1, s2, s3, l; struct sockaddr_un a; (void)alarm(5); if ((s1 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) { perror("socket"); exit(1); } a.sun_family = AF_UNIX; strcpy(a.sun_path, son); (void) unlink(son); if (bind(s1, (struct sockaddr *) &a, strlen(son)+2) == -1) { perror("bind"); exit(1); } if (listen(s1, 2)) { perror("listen"); exit(1); } if (fork() == 0) { if ((s2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) { perror("f0 socket"); kill(getppid(), 3); } (void)connect(s2, (struct sockaddr *)&a, strlen(son) + 2); if (write(s2, "HELLO", 5) == -1) { perror("f0 write"); kill(getppid(), 3); } exit(0); } l = sizeof(a); if (close(0) == -1) { perror("close"); } if (accept(s1, &a, &l)) { perror("accept"); exit(1); } l = 1; if (select(1, &l, 0, 0, 0) == -1) { /* DOESN'T RETURN BEFORE SIG_ALARM */ perror("select"); exit(1); } exit(0); } -- David Talmage (talmage(a)cmf.nrl.navy.mil) ITT Industries, Advanced Engineering & Sciences, Advanced Technology Group

23 years, 5 months

4.4BSD-Lite binaries for SPARC and PMAX

by Jochen Kunz

Hi. I plan to do a BSD exhibition at the VCFE. Main focus is 4.3BSD{,-Tahoe,-Reno} on VAXen. But I want to show 4.4BSD-Lite on HP300, SPARC and PMAX too. I have the 4.4BSD-Lite HP300 binaries, but nothing for SPARC and PMAX. Are there any binaries still around? I don't want to struggle with a SPARC and PMAX bootstrap... Ahh, and 4.2BSD-Reno for HP300 is missing too... -- tschüß, Jochen Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/

23 years, 5 months

Re: FW: FW: Cancer (DO NOT DELETE A WORD OF THIS)

by Rahbynz1＠aol.com

Please read the following: http://urbanlegends.about.com/library/blamybruce.htm?terms=make+a+wish

23 years, 5 months

Re: [pups] Duh - how do you format an RX50?

by pete＠dunnington.u-net.com

On Feb 10, 17:23, Jay Jaeger wrote: > Rats. So it would seem. Forgot about that angle. Useful program -- just > not for floppies. > > Oh well. > > (Hmm. I wonder how "bzzzzt"s taste when you have to eat them with your > hat?) I suspect that they kind of tingle, eh? As far as I remember, yes. I've tried it a few times myself :-) -- Pete Peter Turnbull Network Manager University of York

23 years, 5 months

Re: [pups] Duh - how do you format an RX50?

by pete＠dunnington.u-net.com

On Feb 8, 8:31, Bill Gunshannon wrote: > RX50's came pre-formatted from DEC. There was never a way to > format them on PDP's or VAX as far as I knew. I do think it is > possible to create them using PUTR and an old PC with a proper > floppy controller and a 1.2M floppy drive configured the right > way. You can format them on a Rainbow, but not an -11 or VAX. > My understanding is they are 80 track, 96 tpi format but spin > at the slow spead of normal 5.25 disks and not the higher speed > used by IBM HD disks. Very similar low-level format to IBM floppies, except that, as Bill says, they're 80-track. The spec is 80-track, 96 tpi, single-side, double density (not HD), 10 sectors per track, 512 bytes/sector. DEC squeeze the extra sector in by shortening some of the gaps; even so the timing is a little tight and the drive speed has to be better-than-averagely accurate. It doesn't matter whether you write them at 300 rpm or 360, so long as the controller adjusts its data rate accordingly (250kbps or 300kbps). Which is what a PC does (uses 250kbps for 300rpm and 300kbps for 360 rpm). However, many HD-capable drives use pin 2 on the interface not only to change the speed but change the write current. Some such drives have jumpers to set the correct values. > As a curious note, I actually had (and may still have in the > attic somewhere) a real shugart 80 track 5.25 drive that would > have been the equivalent of an RX50, so it was not only DEC who > used that format. I had them on a TRS-80 and NewDOS-80 and > DOSPlus had no problems formatting and using the drive. This > was long before my first PDP, but I now wonder if they would > have been able to read and write (and maybe even format!) RX50's. If the controller it was attached to can write MFM (double-density), then it would work. Drives of that type were very common before PCs took over. In fact you can fudge one to look like half of an RX50 (a real RX50 plays funny tricks with the SideSelect and Track00 signals, and some DEC controllers use that to recognise an RX50). -- Pete Peter Turnbull Network Manager University of York

23 years, 5 months

Re: [pups] Duh - how do you format an RX50?

by pete＠dunnington.u-net.com

On Feb 9, 8:37, Jay Jaeger wrote: > Um, bzzzzt. Wrong. I have a floppy labeled: BL-FN7AP-MC CZFNAP0 M-11 > FORMTR RX50 . This is a formatter program for a Micro PDP-11. > > It is a *diagnostic* program (not a user program) for formatting these > beasties. Mine is for the -11, I would imagine that there is one for the > MicroVAX as well. Jay, I just checked on that. It's not an RX50 formatter, it's the XXDP V2 formatting and diagnostics routines for an RXDX3. IIRC it will format RD5x hard drives, and RX33, but not an RX50. Can you get a directory listing of the disk? -- Pete Peter Turnbull Network Manager University of York

23 years, 5 months

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