Stupid Questions: Sun 8mm dump tape =>AIX 8mm dump tape

Stupid Questions: Sun 8mm dump tape =>AIX 8mm dump tape

Post by Brian D. Howa » Mon, 05 Oct 1992 14:55:30



Ok, I'm sure this is a RTFM type question but I don't have the time
or access.

I have an 8mm tape dumped using an Exabyte on a Sun and I'd like to
read it on an RS6000 also with an Exabyte 8mm drive.  I tried
to restore -i on rmt1 to see if I could read the tape at all.  Of course
I don't remember the error message I got but it was something like
"..is not a dump tape", e.g. 'I don't know what the f*ck this is but
its not a tape format I can read'.  

 
 
 

Stupid Questions: Sun 8mm dump tape =>AIX 8mm dump tape

Post by Barry She » Mon, 12 Oct 1992 13:19:34



Quote:>I have an 8mm tape dumped using an Exabyte on a Sun and I'd like to
>read it on an RS6000 also with an Exabyte 8mm drive.  I tried
>to restore -i on rmt1 to see if I could read the tape at all.  Of course
>I don't remember the error message I got but it was something like
>"..is not a dump tape", e.g. 'I don't know what the f*ck this is but
>its not a tape format I can read'.  

Use rrestore to the local machine, then AIX seems to behave more like
Unix.

If the AIX machine the tape is on is foo.eff.org then use something
like:

        /etc/rrestore if foo:/dev/rmt0.1

or whatever tape device is appropriate.

--
        -Barry Shein


Purveyors to the Trade | Voice: 617-739-0202        | Login: 617-739-WRLD

 
 
 

Stupid Questions: Sun 8mm dump tape =>AIX 8mm dump tape

Post by Jim Anders » Sun, 18 Oct 1992 00:39:43


I am having problems reading an 8mm Exabyte tape on an Aix-machine.
I don't know much about Aix, I normally use a Sun-Sparc.
The tape comes from the Sun. I made 4 individual tarfiles doing:
tar cvfhl cprog -C $HOME/cprogs .
.
.
etc.

This way I have 4 tarfiles, each with the contents of 1 directory.

Then to get them out on the tape I did:
TAPE=/dev/nrst0
tar cv cprogs
.
.
etc.

The files go out on tape all right, and I can extract them nicely on the
Sun.
But when I want to extract them on the Aix, nothing seems to work :(
I have tried a lot of different setups. Using the 'smit' program to change
the block size to everything from 512 to 10240.

It always says: read error (or input error). Most of the times it says
there
are checksum errors. When I use tar`s -i option to override that, (and the
help of `dd` with different settings piping it on to `tar`) I can extract
the
files (but it still says there are read errors). The files have the same
size
as they have on the Sun, but there is a ? (question-mark) in the first
access-right field (eg. ?rw-rw-r-- ... cprogs....). Then when I extract
cprogs, or do a: tar -tvf cprogs    it only extracts (shows) 3 of the
files
 (but there are 8).

Any help will be greatly appreciated.

        Jim Andersen, Roskilde University, Denmark