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1.
Use ioscan to obtain the tape drive device file options:
%/sbin/ioscan -fnC tape
Identify the Berkeley 'no-rewind' option, for example: /dev/rmt/c4t3d0BESTnb
2.
Change directory to root:
nl
% cd /
3.
Back up /stand/vmunix to tape:
nl
% tar cvf /dev/rmt/c4t3d0BESTnb ./stand/vmunix
Note the prefix of '.' to the filename.
4.
Change to the temporary directory:
nl
% cd /tmp
5.
Extract the file from the tape:
nl
% tar xvf /dev/rmt/c4t3d0BESTnb
6.
Compare the original with the restored version:
nl
% cmp /stand/vmunix /tmp/stand/vmunix
Note that the original filename is not prefixed with '.'.
Volume 5: UNIX, Linux and OpenVMS configuration guide
33
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