[NCLUG] Tape extraction help needed.

John L. Bass jbass at dmsd.com
Thu Nov 7 20:21:20 MST 2002


	I have some tapes containing data grouped into header and
	image files.  Using dd, I can get the header file, but it
	then terminates, and the remainder of the data (~130MB) is
	ignored.  Am I doing something worng?

	>dd if=/dev/st0 of=tape2 bs=16k
	0+1 records in
	0+1 records out

	Does anyone know of another utility to simply dump data
	from a tape to a file?  (cpio is doing the same as dd right
	now).

	Thanks-
	Erich

Hi Erich,

What kind of media and drive? Are you looking at a labeled tape
that has filemarks between an ANSI label and data?

try:

	dd if=/dev/nst0 of=tape2.file1 bs=16k
	dd if=/dev/nst0 of=tape2.file2 bs=16k
	dd if=/dev/st0 of=tape2.file3 bs=16k

have fun,
John



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