Monday, 26 January 2015

Re: Creating Ubuntu USB sticks

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On 1/22/2015 10:22 AM, Stefan Bader wrote:
> That is the expected behaviour with that incantation. If you added
> a "oflag=sync" dd should return only after write has finished. In
> your case you use cached writes.

oflag=sync is terrible and should never be used as it does the
equivalent of fsync() after every single write(). Not only does this
cause terrible performance, but in the case of flash, will wear it out
much more. Use conv=fsync instead to fsync() once, at the end.


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