this post was submitted on 06 Dec 2024
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This is also one of those weird things: Why do people use
dd
for this?It doesn't do anything special, it just does a plain old
read()
/write()
loop on regular-ass UNIX files. Its actual purpose is to do character set conversions while doing so.You can just
cp image.iso /dev/sda
or evencat image.iso > /dev/sda
. (The latter only works in a privileged shell because it's the shell whichopen()
s the device file.)Idk about
cp
, but I can set block size and whatnot indd
, which seems to get better write performance. But maybe that's a non-issue these days.