From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.o2.co.uk (vader.london.02.net [82.132.130.150]) by speech.braille.uwo.ca (Postfix) with ESMTP id F1B3DC1A29C for ; Mon, 22 Mar 2010 18:19:32 -0400 (EDT) Received: from [192.168.1.66] (87.194.146.232) by mail.o2.co.uk (8.0.013.3) (authenticated as r2gl) id 4BA1DA39015F7118 for speakup@braille.uwo.ca; Mon, 22 Mar 2010 22:19:25 +0000 Subject: Pulling my hair out over a micro SD From: Georgina Joyce To: speakup@braille.uwo.ca Content-Type: text/plain Organization: Ready 2 Go Linux Date: Mon, 22 Mar 2010 22:19:22 +0000 Message-Id: <1269296362.2945.37.camel@orchid.sented-plants.local> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit X-BeenThere: speakup@braille.uwo.ca X-Mailman-Version: 2.1.13 Precedence: list Reply-To: r2gl@o2.co.uk, "Speakup is a screen review system for Linux." List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Mar 2010 22:19:33 -0000 Hi I wondered if anyone could help? I've purchased a 16Gb micro SD Sandisk card for a MP3 player. I purchased one with a SD adapter because I don't have a micro HC compliant reader. I put the card in the player and was able to copy files onto the card via Windows. But I got tired of copying my oggs so stopped after copying about 6Gig. But what ever I do now I can't add any more. Furthermore, I can't destroy it either. If I run fdisk and press 'o' for a new partition table the linux machine sits there for a minute or two and returns me to the prompt. Then when I list devices 'fdisk -l' it's vanished. I've been reading forums about Sandisk cards and my head is spinning. What logs or switches should I observe what is going on? I found ufiformat a low level format tool but it refuses to identify the SD as a floppy, obviously because it's not. So is there another tool I need? BTW: There's a HP USB storage format tool that doesn't touch it either on the Windows platform. This is why I thought I've have better luck on linux. I've tried mkfs.vfat again it returns me to the prompt after several minutes having not touched the file system on the card. I could touch a test file and rm that file. But If I attempt larger file transfers the device craps out with read write errors and the device has vanished. As Micro SD's don't have a locking switch how on earth do I get this thing formatted and start again? Something has had some effect as it's currupted something as the mp3 player just crashes when I attempt to use it with the card inserted. I'm waiting for a new card reader but I don't think that's going to make any difference because I've tried to get my phone to format it. My Victor Stream too. None of them can touch this card. Well I have destroyed partition tables with dd before now but wouldn't have a clue on whether this would help in this situation. Any help would really be appreciated. Yours frustrated. -- -- Gena four kinds of freedom, for the users of the software: * The freedom to run the program, for any purpose (freedom 0). * The freedom to study how the program works, and adapt it to your needs (freedom 1). Access to the source code is a precondition for this. * The freedom to redistribute copies so you can help your neighbor (freedom 2). * The freedom to improve the program, and release your improvements to the public, so that the whole community benefits (freedom 3). Access to the source code is a precondition for this. Richard Matthew Stallman