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Suggestion: A No-write Option, e.g. --scrub.
From: |
Ralph Corderoy |
Subject: |
Suggestion: A No-write Option, e.g. --scrub. |
Date: |
Thu, 05 Mar 2020 09:22:04 +0000 |
Hi,
I've just used dd(1) to repeatedly read an SD card until it got all the
way through without an I/O error. Quite a bit of the run time was
reading what had already been successfully read because I was lazy, or
had a better way to use my time.
It occurred to me that ddrescue(1) would do a better job, but I wouldn't
want a copy created in an output file. I skimmed
https://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html but
didn't see a way to do this, or a special meaning to an output file of
/dev/null.
A --scrub would be quite handy to read repeatedly until the media's
controller succeeds and re-maps the block internally.
--
Cheers, Ralph.
- Suggestion: A No-write Option, e.g. --scrub.,
Ralph Corderoy <=