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File: README.1ST RT-11 DISTRIBUTIONS V5-0 This CD of RT-11 distributions holds twenty-four binary RT-11 distributions for V05.07 and prior. In addition, this CD contains RT-11 file structures along with the normal ISO9660 file structure. Individuals who have access to hardware and software which can read the CD correctly (in an emulated 512 byte block file format under either a real DEC PDP-11 or an emulated PDP-11) will be able to BOOT V05.03 of RT-11 directly from this CD. Although this CD is probably not unique in having two file structures, it is probably one of the very few in which the files are NOT duplicated. The actual contents of each file are present on the CD only ONCE. While most users will look at only the ISO9660 file structure, all of the file entries within the four RT-11 file structures (one is required for each 32 MByte RT-11 partition and each have exactly 65536 blocks) point to the same location on the CD insofar as each file is concerned. There was no contact at all, in respect of the production of this CD, with Mentec, DEC, Compaq or HP. None of these four companies provided any of the files. None helped to verify that the files are correct. Future support is not anticipated and will not be requested. A license from one or more of the companies is required to legally use any of the RT-11 distributions. Hobby users have been provided with a license from Mentec to use V05.03 and prior distributions of RT-11 under the Supnik emulator. Both V1-0 and V5-0 of this CD were being prepared at about the same time. It was anticipated that the extra eleven binary RT-11 distributions on V5-0 would result in a very different CD. V1-0 of this CD ended up being identical as to the file structures and the total space allocation for each file. However, if this file is V1-0, then the contents of all of the RT-11 distributions after V05.03 of RT-11 contain zeros. On the other hand, if this file is V5-0, then this CD is available only to those users, companies and individuals who have a legal license for V05.07 of RT-11 and have requested a complete set of RT-11 distributions on a single CD. Future CDs for the current versions (V1-0 and V5-0) will be produced as significant improvements become available. In addition, a second set of CDs, V2-0 and V6-0 have been started which will contain layered products such as FORTRAN IV, FORTRAN 77, Multi-User Basic and C. Source files for all distributions are also a goal for inclusion. If you are reading V1-0 of this file via Usenet or Google, then it is possible to download a Zipped copy of the file image for the CD at: http://www.classiccmp.org/PDP-11/RT-11/dists/RT11DV10.ISO.zip If you are reading V5-0 of this file, then it is most likely that it is on the actual CD or at least from a file image of the CD. If you are a commercial user reading V1-0 of this file and are legally licensed to use V05.07 of RT-11, you can request a copy of the CD from: "RT-11 Distributions" <cctalk@classiccmp.org> or alternatively via the Usenet groups alt.sys.pdp11 or vmsnet.pdp-11 Commercial users who have a license for a distribution of RT-11 prior to V05.07 may also request a customized copy of V5-0 of the CD with the RT-11 distributions they are not licensed for set to zeros. Page 1 File: README.1ST RT-11 DISTRIBUTIONS V5-0 This file contains important information which even some expert RT-11 users will wish to know. It is STRONGLY suggested that everyone read this complete file even if they are an expert under RT-11. These RT-11 distributions were made available from almost a dozen sources over many decades. As a result, there are just too many people to whom acknowledgement is due without having to leave out some individuals for whom there is no longer even a name. If you are one of the many people who helped, THANK YOU! A pristine RT-11 distribution is defined as: (a) Originally being directly made by DEC (b) Copied file by file to a media which was originally all zeros so that no additional non-zero data is included except when DEC decided to distribute files which were not documented (c) The RT-11 Volume ID and Owner are correct (d) The order of the files is correct (e) If the file image also contains boot information which is sufficient to allow the image to be booted using real DEC hardware or an emulator, then any files which were modified as a result of a boot operation (such as LD.SYS) were returned to their original state (f) Any file which contains no valid information (such as SWAP.SYS) was zeroed Although DEC did produce pristine distributions for some distributions, in many cases not all of the above criteria were used. In particular, items (e) and (f) were usually not considered and item (b) was often a problem for unused blocks of the media. This CD of RT-11 distributions contains file images that, as much as is possible, adhere to the above criteria. Since it is hoped that additional versions of RT-11 will be found in the future (and perhaps are already available but not known about when these RT-11 distributions are being copied), periodic updates will be made. It is also very likely that some of information in this file and in the file images is incorrect. It would be very appreciated if corrections are provided. Please send an email with the information to Usenet or to: "RT-11 Distributions" <cctalk@classiccmp.org> If an image file of this CD is being used (probably under an emulator), the image file should ALWAYS be used in a READ ONLY mode. Each of the three bootable RT-11 partitions contain file directories which cover the bootable distributions TWICE, first as the last RL02 image followed by over two hundred files which are contained within that same RL02 image. As before, the actual file contents are not duplicated. This highly unusual situation was produced by manually setting the fifth word of the second directory segment (starting block number of the first file in that directory segment) back to the actual block number where the file (SWAP.SYS in this case) begins within the RT-11 partition (RT-11 does not try to check the value). Although a limited set of changes might be possible for those experts who are fully aware of the potential disaster which any changes might produce, it is strongly suggested that none are likely to be worth the attempt. Page 2 File: README.1ST RT-11 DISTRIBUTIONS V5-0 One problem that is known about is when the PUTR utility by John Wilson is used to copy any of the files from the RT-11 directories for the bootable RT-11 partitions. While the large image files of complete RT-11 distributions can be copied using PUTR, it is not possible, at the time this CD is being prepared, to use PUTR to copy ANY of the individual files within any of the bootable RT-11 distributions, specifically for V05.03 of RT-11. John Wilson is aware of the problem; hopefully it will eventually be fixed, although if an actual CD is being used, just copy the file (under the ISO9660 file structure on the CD) in the normal manner to a file on the hard drive and avoid the problem. In the interim, when any individual file within any of the bootable RT-11 distributions of RT-11 is needed, starting with the file SWAP.SYS, first copy that bootable RT-11 file image for that distribution (such as RTV5RL.03) to a file on the hard drive. Then MOUNT that file image so that any individual file can be copied. A copy of PUTR can be obtained from John Wilson at http://www.dbit.com/pub/putr/ The choice of which RT-11 distributions are included on this CD is based on the following criteria: (a) All available RT-11 distributions are included in addition to those which hobby users are allowed to legally run under the SIMH emulator; SIMH can be found at: http://simh.trailing-edge.com/ (b) For V05.0x distributions, an RL02 image is included (c) Prior to V05.00, an original RK05 image is included whenever possible in preference to any other media. (d) If an RK05 image is not available, then a group of RX01 images is the only other choice. For this case, an RK05 file image is also present, but the Volume ID and Owner are probably not correct nor are the files likely to be in the same order as for the DEC version; however, at least there is the convenience of being able to use a single file image. For V01-15, a rare DT file image is available which is almost certainly incomplete; a bootable RK05 file image is also present. All file names are 6 alphanumeric characters followed by at least the character "0" for the file type when there is no explicit sub-version, such as for V03 of RT-11. When the subversion is an integral portion of the RT-11 version such as for V03B, then the file type is the single character "B". The naming conventions for the files on this CD are: RTVnmd.sss where RT is for RT-11 binary distributions Vn is for the primary version number and is one of V01, V02, V03, V04 or V05 md is for the media of the single bootable file image DT is for DecTape images R1 is for RX01 images for which there will be individual subsets R2 is for RX02 images for which there will be individual subsets R5 is for RX50 images for which there will be individual subsets RK is for RK05 images RL is for RL02 images sss is the sub-version as best as it can be represented Page 3 File: README.1ST RT-11 DISTRIBUTIONS V5-0 For RX01 media, the internal file images are indented. The internal file image names use the "md" portion of the name as "n of total" for each of the files (hopefully total will never exceed 9). When there is also a separate "Auto-Install" file image, "md" will be the two characters "AU". Some of the information which follows may not be correct and the files in the images may not be in the correct order. Where the level of confidence is not of the highest level that the information is correct and that the files are in the correct order, then that file is flagged with an asterisk "*". For a few of the file images for RL02 media, only RX02 file images could be found. For these isolated cases, the order of the files within the RL02 file image was assumed to be the same as the order from a previous or a subsequent RT-11 binary RL02 distribution which was available. In addition, for the very early distributions of RT-11, especially V01-15, V02B and V02C, while every effort was made to include as many files in the distribution as possible, it is very likely that many files are missing, especially the source files which are needed for to generate a monitor or a device driver. V03 and V03B distributions are also suspect, although an examination of these two distributions shows that most, if not all of the files to be expected are present. On the other hand, because there is often more than one distribution of RT-11 available for V02B, V02C, V03 and V03B, it is difficult to decide which is a more accurate reflection of the historical situation during the first decade of the emergence of RT-11 as one of the major operating systems for the PDP-11 computer from DEC. Although it seems doubtful, at this point, that anyone will actually be concerned, let alone look at the actual files or even use them in some manner, the attempt to reconcile which set of files are the most appropriate will continue for the files in the very early distributions of RT-11 prior to V4.00 of RT-11. Most specifically, V03B seems to have been used over an extended period of time, probably for about three years. The V30B included on this CD is seems to be from a point near the end of those years and includes the relatively new DD (DecTape II) and PD (for the PDT-11) device drivers. If there is a request to include some of the many alternative distributions for V02B, V02C, V03 or V03B, please make the request known via an email to Usenet or at: "RT-11 Distributions" <cctalk@classiccmp.org> AND FINALLY, a full size and complete RK05 file image is 4800 blocks and a full size and a complete RL02 file image is 20450 blocks. However, it can be seen that neither the RK05 nor the RL02 file images have that many blocks. While the CD is able to hold full size file images without any impact (most of the CD is empty), in an effort to reduce the number of RT-11 partitions, all of the blocks in each RK05 file image and RL02 file image which are all zeros AFTER the end of all of the files within the RT-11 file directory have been omitted. For this reason, two empty file images, ZERORK.DSK (with 4800 blocks or a total of 2,457,600 bytes) and ZERORL.DSK (with 20450 blocks or a total of 10,470,400 bytes) are present on the CD. Under V05.03 of RT-11, the command: COPY/DEVICE/FILE DU3:ZERORL.DSK DL0: can be used to copy ZERORL.DSK from DU3: to clear all of DL0: (substitute Page 4 File: README.1ST RT-11 DISTRIBUTIONS V5-0 RK0: for DL0: when an RK05 is being used). Obviously the user must be within RT-11 to execute this command. Another alternative is to copy the file from the CD to a file on the hard drive and use that individual file image as a device in the command: COPY/DEVICE DU0: DL0: If the user has the "Full" (Commercial) version of Ersatz-11 and wishes to use a "RAM:" disk under that emulator, the command is: MOUNT DL0: RAM:/RL02/SIZE:10470400 (Use 20450 blocks after V3.1) Any other size will probably not work correctly. Also, the "/RL02" switch must be first. Initially, RAM: is always cleared. Note that the size of ZERODL.DSK is larger than the user area by 30 blocks or 15,360 bytes since it includes the system area required by both SIMH and Ersatz-11 during the RT-11 command: INITIALIZE DL0: Under SIMH: ATTACH RL0: ZERODL.DSK Under Ersatz-11: MOUNT DL0: ZERODL.DSK Consequently, ZERODL.DSK is for use ONLY when running RT-11 under an emulator such as SIMH or Ersatz-11. If the user needs a file under RT-11 which is exactly the size which RT-11 specifies for the user area (namely 20450 blocks), use the file ZERORL.DSK which is exactly 20450 blocks. Obviously the file ZERORK.DSK can be used for any empty RK05 image under both real DEC hardware and an emulator. The three files discussed in this paragraph can be found within the fourth RT-11 partition (RT-11 partition three or PART=3 or DU3:). File Name Media Version Date Issued Volume ID Owner --------- ----- ------- ----------- ------------ ------------- README.1ST This file 31-Oct-1998 README.2ND Important RT-11 information on the access of RT-11 partitions RTV1DT.15 * DT V01-15 25-Jul-1973 RT-11 V01-15 DEC RTV1RK.15 * RK05 V01-15 25-Jul-1973 RT-11 V01-15 DEC RTV2R1.B ** n/a V02B 01-May-1975 RT-11 V02B DEC RTV212.B * RX01 V02B 01-May-1975 ORTSA-A-YB1 DEC DISTRIB RTV222.B * RX01 V02B 01-May-1975 ORTSA-A-YB2 DEC DISTRIB RTV2RK.B * RK05 V02B 01-May-1975 ORTSA-A-YB DEC DISTRIB RTV2R1.C ** n/a V02C 20-Nov-1975 RT-11 V02C DEC RTV213.C * RX01 V02C 20-Nov-1975 ORTSA-B-YB1 DEC DISTRIB RTV223.C * RX01 V02C 20-Nov-1975 ORTSA-B-YB2 DEC DISTRIB RTV233.C * RX01 V02C 20-Nov-1975 ORTSA-B-YB3 DEC DISTRIB RTV2RK.C * RK05 V02C 20-Nov-1975 ORTSA-B-YB DEC DISTRIB RTV3R1.0 ** n/a V03 14-Aug-1977 RT-11 V03 DEC RTV319.0 RX01 V03 14-Aug-1977 ORTSB-A-YC1 DX1 DISTRIB RTV329.0 RX01 V03 14-Aug-1977 ORTSB-A-YC2 DX2 DISTRIB RTV339.0 RX01 V03 14-Aug-1977 ORTSB-A-YC3 DX3 DISTRIB RTV349.0 RX01 V03 14-Aug-1977 ORTSB-A-YC4 DX4 DISTRIB RTV359.0 RX01 V03 14-Aug-1977 ORTSB-A-YC5 DX5 DISTRIB RTV369.0 RX01 V03 14-Aug-1977 ORTSB-A-YC6 DX6 DISTRIB RTV379.0 RX01 V03 14-Aug-1977 ORTSB-A-YC7 DX7 DISTRIB RTV389.0 RX01 V03 14-Aug-1977 ORTSB-A-YC8 DX8 DISTRIB RTV399.0 RX01 V03 14-Aug-1977 ORTSB-A-YC9 DX9 DISTRIB RTV3RK.0 * RK05 V03 14-Aug-1977 ORTSB-A-YB DEC DISTRIB Page 5 File: README.1ST RT-11 DISTRIBUTIONS V5-0 File Name Media Version Date Issued Volume ID Owner --------- ----- ------- ----------- ------------ ------------- RTV3R1.B ** n/a V03B 27-Mar-1979 RT-11 V03B DEC RTV319.B RX01 V03B 27-Mar-1979 AS-5777C-BC DX1 DISTRIB RTV329.B RX01 V03B 27-Mar-1979 AS-5779C-BC DX2 DISTRIB RTV339.B RX01 V03B 27-Mar-1979 AS-5780C-BC DX3 DISTRIB RTV349.B RX01 V03B 27-Mar-1979 AS-5781C-BC DX4 DISTRIB RTV359.B RX01 V03B 27-Mar-1979 AS-5782C-BC DX5 DISTRIB RTV369.B RX01 V03B 27-Mar-1979 AS-5783C-BC DX6 DISTRIB RTV379.B RX01 V03B 27-Mar-1979 AS-5784C-BC DX7 DISTRIB RTV389.B RX01 V03B 27-Mar-1979 AS-H756C-BC DX8 DISTRIB RTV399.B RX01 V03B 27-Mar-1979 AS-H757C-BC DX9 DISTRIB RTV3RK.B * RK05 V03B 27-Mar-1979 AN-5752B-BC RK05 DISTRIB RTV4RK.00 RK05 V04.00 21-Feb-1980 AN-5752C-BC RT-11 V04.00 RTV4RK.00C * RK05 V04.00C 01-Feb-1982 AN-5752D-BC RT-11 V04.00C RTV5RL.00 RL02 V05.00 12-Mar-1983 BC-P607A-BC RL2 1/1 RTV5RL.01 RL02 V05.01 01-Feb-1984 BC-P607B-BC RL2 1/1 RTV5RL.01B RL02 V05.01B 19-Mar-1984 BC-P607C-BC RL2 1/1 RTV5RL.01C RL02 V05.01C 01-Sep-1984 BC-P607D-BC RL2 1/1 RTV5RL.02 RL02 V05.02 17-Jun-1985 BC-P607E-BC RL2 1/1 RTV5RL.03 RL02 V05.03 20-Dec-1985 BC-P607F-BC RL2 1/1 RTV5RL.03S Dummy file required on the CD for the next RT-11 partition RTV5RL.04 RL02 V05.04 03-Sep-1986 BC-P607G-BC RL2 1/1 RTV5RL.04A RL02 V05.04A 05-Jan-1986 BC-P607H-BC RL2 1/1 RTV5RL.04B RL02 V05.04B 04-May-1987 BC-P607I-BC RL2 1/1 RTV5RL.04C RL02 V05.04C 02-Sep-1987 BC-P607J-BC RL2 1/1 RTV5RL.04D RL02 V05.04D 17-Nov-1987 BC-P607K-BC RL2 1/1 RTV5RL.04E RL02 V05.04E 01-May-1988 BC-P607L-BC RL2 1/1 RTV5RL.04F RL02 V05.04F 06-Sep-1988 BC-P607M-BC RL2 1/1 RTV5RL.04G RL02 V05.04G 19-Dec-1988 BC-P607N-BC RL2 1/1 RTV5RL.05 RL02 V05.05 31-Oct-1989 BC-P607O-BC RL2 1/1 RTV5RL.06 RL02 V05.06 31-Aug-1992 BC-P607P-BC RL2 1/1 RTV5RL.06S Dummy file required on the CD for the next RT-11 partition RTV5RL.07 RL02 V05.07 31-Oct-1998 480046511 RL2 1/1 RTV5RL.07S Dummy file required on the CD for the next RT-11 partition ZERODL.DSK RL02 n/a This file contains all zeros in the user area and is for use only under SIMH or Ersatz-11 ZERORK.DSK RK05 n/a This file contains all zeros ZERORL.DSK RL02 n/a This file contains all zeros * Some of these fields may be incorrect along with the order of the files ** Although this file contains all of the file images for the complete distribution, this file is NOT a DEC RT-11 distribution, but can be MOUNTed as a "subset" under any V05.0x distribution of RT-11; PUTR can also be used in a similar manner to obtain the actual file images Page 6
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