[colug-432] creating sparse disk images

[jep200404 at columbus.rr.com]

On Mon, 12 Nov 2018 19:02:25 -0300, Rick Hornsby <richardjhornsby at gmail.com> wrote:

> Maybe I’m not understanding what “sparse” means in this context?

Maybe so.

What does sparse mean to you?

What does the following mean to you?

    [rjh at colug ~]$ man dd | grep sparse
           sparse try to seek rather than write the output for NUL input blocks
    [rjh at colug ~]$

See also wikipedia article for sparse file.