GNU bug report logs - #19065
dd design bug

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Package: coreutils;

Reported by: bt <bdtitus108 <at> yahoo.com>

Date: Sun, 16 Nov 2014 01:48:02 UTC

Severity: normal

Tags: moreinfo, unreproducible

Done: Assaf Gordon <assafgordon <at> gmail.com>

Bug is archived. No further changes may be made.

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: bt <bdtitus108 <at> yahoo.com>, 19065 <at> debbugs.gnu.org
Subject: bug#19065: dd design bug
Date: Sat, 15 Nov 2014 22:43:41 -0800

bt wrote:
> It doesn't make sense that if the "of=" device doesn't exist, then another
> pre-existing device, not mentioned in the command line, is overwritten.

It doesn't make sense to me, either.  But I doubt whether this is a 'dd' bug. 
It doesn't know anything about devices: it just opens /dev/sda3 for reading and 
/dev/sdb3 for writing, and it doesn't do anything smarter than that.  So if this 
trashes some other partition then it's most likely some problem with your 
partitioning.
This bug report was last modified 6 years and 208 days ago.

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