[BusyBox] Problems with cpio and SCSI tape

[Laurence Anderson]

I've been looking at the GNU cpio/tar source, and I think it might be
because you can only read a block at once on a tape drive (512 bytes?),
whereas we might try to read a few bytes at a time.

Anybody agree/disagree?

If this is true, we could have an option to turn on support for tapes,
which uses alernative functions for read, seek_sub_file,
copy_file_chunk....

Laurence