On Sun, Oct 30, 2022 at 8:51 PM ToddAndMargo via users <users@lists.fedoraproject.org> wrote:

Hi All,

I have an upcoming appointment with a customer
who wants a number of his old computers
(mostly iMacs) removed from service.

[...]

     # dd if=/dev/zero of=/dev/sd[x]

An old iMac has been running this (x=a) for over 12 hours here using 

thr “rescue” option from an old linux installer CD.   I’ve done this with 

newer Macs, but just left it running overnight, so not sure how long it took.