Difference between revisions of "Data Duplicator"
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<code>bs=<BYTES></code> read and write up to BYTES bytes at a time (default: 512)</br> | <code>bs=<BYTES></code> read and write up to BYTES bytes at a time (default: 512)</br> | ||
<code>count=<N></code> copy only N input blocks</br> | <code>count=<N></code> copy only N input blocks</br> | ||
To mount a dd disk image with multiple partitions:</br> | |||
<code>losetup -Pf /path/to/your/image.dd</code> | |||
Latest revision as of 13:16, 17 September 2025
dd
Convert and copy a file. Also, write to magnetic tape.
Use
dd if=<PATH> of=<PATH> duplicate infile to outfile
Ex:
dd if=/dev/urandom of=/dev/st0 bs=65536 count=1000 write a random data stream to tape st0 with 65K block size 1000 times
Useful Flags
status=progress show progress and speed
bs=<BYTES> read and write up to BYTES bytes at a time (default: 512)
count=<N> copy only N input blocks
To mount a dd disk image with multiple partitions:
losetup -Pf /path/to/your/image.dd