buc@jessica.stanford.edu (Robert Richards) (03/23/91)
The program "copytape" makes exact duplicates of SUN 1/4" tapes and DEC
tapes and probably others. This includes boot tapes. Copytape is
available by anonymous ftp from,
ftp.acsu.buffalo.edu ! in pub/copytape.tar
titan.rice.edu
However, "copytape" fails on tapes that contain files whose record size
changes in a file. For example, the following is a partial listing of the
output of tcopy on a SPARCstation of a tape that "copytape" can not
properly copy.
file 6: record 1: size 65536
file 6: record 2: size 9216
file 6: eof after 2 records: 74752 bytes
file 7: records 1 to 174: size 65536
file 7: record 175: size 57344
file 7: eof after 175 records: 11460608 bytes
file 8: records 1 to 42: size 65536
file 8: record 43: size 64512
file 8: records 44 to 50: size 65536
file 8: record 51: size 1536
file 8: eof after 51 records: 3277312 bytes
file 9: records 1 to 7: size 65536
file 9: record 8: size 6144
file 9: eof after 8 records: 464896 bytes
Copytape handles all the files properly except for file 8 which has record
43 that has a record size different from all the other record sizes.
Does anyone know of a modified "copytape" that can handle this situation?
Rob Richards
Stanford Universitydav@genisco.gtc.com (David L. Markowitz) (04/02/91)
In comp.sys.sun you write: >The program "copytape" makes exact duplicates of SUN 1/4" tapes and DEC >tapes and probably others. This includes boot tapes. >However, "copytape" fails on tapes that contain files whose record size >changes in a file. >Does anyone know of a modified "copytape" that can handle this situation? Enclosed is my program "tapecv", which will handle this properly. It requires two tape drives, but no disk space. The drives can be on different machines, and can be different types of drives. [[Ed's Note: Placed in archives. -bdg]] FTP: Hostname : titan.rice.edu (128.42.1.30) Directory: sun-source Filename : tapecv.shar Filesize : 27708 bytes Archive Server Address: archive-server@rice.edu Archive Server Command: send sun-source tapecv.shar