Gentoo Archives: gentoo-user

From: William Kenworthy <billk@×××××××××.au>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] SD memory card not erasing, even with dd.
Date: Thu, 30 Dec 2021 03:52:41
Message-Id: 2b0b0920-389d-cee4-3652-d81974e4318e@iinet.net.au
In Reply to: Re: [gentoo-user] SD memory card not erasing, even with dd. by Dale
1 ...
2 > This thread has been interesting tho.  At least I know that a Sandisk
3 > card at least tries to fail in a way that I can get the data off that
4 > did get written to the card.  Hey, that's a lot better than some I
5 > guess.  :-D  I've had some other brands that when they die, they dead.
6 > You get nothing at all.
7 >
8 > Dale
9 >
10 > :-)  :-)
11 >
12 From memory (I found some articles describing what was happening when
13 investigating a while back) - its common with other brands too so might
14 be part of the specification - if it detects a failure, it forces
15 permanent read only mode to enable data recovery.  Some cards may be put
16 back into write mode by software but not all and I wouldn't trust it
17 anyway.  I have Kingston, Samsung and Sandisk cards - I regard Samsung
18 as very slightly better but not enough to go out of my way and pay more
19 for them.
20
21 BillK

Replies

Subject Author
Re: [gentoo-user] SD memory card not erasing, even with dd. Dale <rdalek1967@×××××.com>