On Thursday 11 January 2007 14:42, Darryl Gregorash wrote: > ... > > dd if=/dev/zero of=/extra-swap bs=1K count=1K > > The following byte/count specifications will all create the 2G file > you desire: > > bs=2G count=1 (though this will probably hardly be practical) > bs=2M count=1K > bs=2K count=1M > > (Note that kB, MB and GB all refer to powers of 1000, not 1024. This > is standard SI nomenclature.)
Actually, for dd the units are CS (1024, 1024 * 1024, 1024 * 1024 * 1024, resp.). To wit: % dd if=/dev/zero of=/dev/null bs=2K count=1M 1048576+0 records in 1048576+0 records out 2147483648 bytes (2.1 GB) copied, 1.30146 seconds, 1.7 GB/s If you divide it out, you find that it's using power-of-two Ks, Ms and Gs (except for the summary line--go figure). Also, for some reason 'm' is not allowed, only 'M', but either 'k' or 'K' are allowed but both mean 1024 (I tried 'em both). Randall Schulz -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
