TLDR
Enter a command. For example: ctrlaltdel, etckeeper, btrfs subvolume.

mt

 
Control magnetic tape drive operation (commonly LTO tape). More information: https://manned.org/mt.
 
  • Check the status of a tape drive:
     
    mt -f {{/dev/nstX}} status
     
  • Rewind the tape to beginning:
     
    mt -f {{/dev/nstX}} rewind
     
  • Move forward a given files, then position the tape on first block of next file:
     
    mt -f {{/dev/nstX}} fsf {{count}}
     
  • Rewind the tape, then position the tape at beginning of the given file:
     
    mt -f {{/dev/nstX}} asf {{count}}
     
  • Position the tape at the end of valid data:
     
    mt -f {{/dev/nstX}} eod
     
  • Rewind the tape and unload/eject it:
     
    mt -f {{/dev/nstX}} eject
     
  • Write EOF (End-of-file) mark at the current position:
     
    mt -f {{/dev/nstX} eof

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