[comp.unix.ultrix] Probems with DD after installing Ultrix V2.0-1

shashi@temvax.UUCP (N Shashidhar) (10/26/87)

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Hi

We are having problems with "dd" ever since we installed  Ultrix-32 V2.0.

Whenever we write a file using dd, we read the tape and compare the read
file with original before sending it out to other systems.

On Ultrix V2.0-1, When we write files using "dd" ASCII-EBCDIC conversion and 
read it back everything seems fine execpt that the charaters written out on 
tape are not EBCDIC. On examing the tape contents using OD we saw that only
spaces were converted to EBCDIC while all digits and letters are still
in ASCII ?!?.

So we tried using the ASCII-IBM option on dd. On reading the tape that
was written out, we find LOTS of changes. So we are not sure what is
written is correct.

Performance wise, dd seems to be same as before, while its brothers dump
tar run much faster.

Does anyone have similar problems or a solution.

The "dd" worked fine on Ultrix V1.2.

Thanks in advance

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 |  |     | |     |  |    N.Shashidhar
          | |             Institute for Survey Research
          | |             Temple University
          | |             1601 N.Broad St., Room 507-G
          | |             Philadelphia PA 19122        (215) 787-7191/3445
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