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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Michael Schwingen Newsgroups: comp.sys.raspberry-pi Subject: Re: TF cards v MicroSD Date: 13 Jul 2024 08:17:01 GMT Lines: 17 Message-ID: References: X-Trace: individual.net RSZN/atedkFgGNyR8aSfbgHXD0hCX+hQHiLcFQ7kLn52NnDmgX Cancel-Lock: sha1:yOF+HIu2TKaHc28JQZhlDN/HyPs= sha256:+KutHJK9TRt/jep7YIsZWQEzj8z4Jlj/OfAhY2e+EeU= User-Agent: slrn/1.0.3 (Linux) Bytes: 1415 On 2024-06-06, Nikolaj Lazic wrote: > > you can test the card with "badblocks -o /report -t random -swv /dev/your_sd" > and see the report. I don't think that works - if I read the manual correct, badblocks writes the same pattern to all blocks, it will not detect fake cards where multiple blocks map to the same memory location. You can use f3write / f3read. Those write files with known, non-repeating patterns to fill the whole device (you need a filesystem for that), and then verify them. cu Michael -- Some people have no respect of age unless it is bottled.