a staggering amount of microSD cards just arrived, time to mass dd'em
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Replying to @AndreaBarisani
@AndreaBarisani What capacity and what image size are you writing? Leaving little or no free space may lower the cards' lifetime and speed.1 reply 0 retweets 0 likes -
Replying to @AndreaBarisani
@AndreaBarisani Sounds fine, then. Yet a program smarter than dd might be preferable. Might also be faster: read instead of writing 0's.2 replies 0 retweets 1 like -
Replying to @solardiz
@solardiz@AndreaBarisani are SD cards always zeroed when sold/new?2 replies 0 retweets 0 likes -
Replying to @cynicalsecurity
@cynicalsecurity@AndreaBarisani Concern: if a never-written-to block reads as 0's in this test, is it guaranteed to read as 0's later?1 reply 0 retweets 0 likes -
Replying to @solardiz
@solardiz@AndreaBarisani well, if it never written-to then wear-levelling should not come into play.1 reply 0 retweets 0 likes
@cynicalsecurity @solardiz all new microSD cards have an existing partition, so they do write a little
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