layhe@dopey.rc.arizona.edu (Robert Layhe) (11/06/90)
recently someone posted a program/utility to read sun tar tapes. could
that be reposted or emailed to me directly.
thanks
--
Robert W. Layhe | Internet: layhe@rcnext1.rc.arizona.edu, layhe@arizona.edu
CCIT/Computer Ctr. | UUCP: ..{seismo!noao,cmcl2,ihnp4}!arizona!amethyst!layhe
Univ. of Arizona | Bitnet: layhe@arizrvax
Tucson, AZ 85721 | Phone: +1 602 621-2284jim@baroque.Stanford.EDU (James Helman) (11/06/90)
SGI 1/4" tapes are byte swapped wrt other vendors. I believe this is an historical artifact. Something to do with the byte order of the Multibus(?) on their old machines. You can read Sun tar tapes using the "f /dev/tapens" option with tar, e.g. "tar xvf /dev/tapens ." On our machines, we actually made /dev/nrtape and /dev/tape point to the non-swapped devices, i.e. /dev/nrtapens and /dev/tapens. It seemed rather silly to keep swapping bytes back and forth in software to keep an anachronism which confused users transferring data between Suns and 4Ds. I believe that SGI's installation procedures go straight to the /dev/mt/tpsXXXXX files, so such a change only affects commands such as tar(1) and bru(1) which use /dev/nrtape and /dev/tape. It works for us anyway. Jim Helman Department of Applied Physics Durand 012 Stanford University FAX: (415) 725-3377 (jim@KAOS.stanford.edu) Work: (415) 723-9127
msc@ramoth.esd.sgi.com (Mark Callow) (11/07/90)
In article <381@organpipe.UUCP>, layhe@dopey.rc.arizona.edu (Robert Layhe) writes: |> |> recently someone posted a program/utility to read sun tar tapes. could |> that be reposted or emailed to me directly. |> No utility is needed beyond tar. tar xof /dev/tapens will do the trick. -- From the TARDIS of Mark Callow msc@ramoth.sgi.com, ...{ames,decwrl}!sgi!msc "There is much virtue in a window. It is to a human being as a frame is to a painting, as a proscenium to a play. It strongly defines its content."