this post was submitted on 09 Nov 2023
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SD Card without MBR or GPT: I need a "RAW" SD card (alien.top)
submitted 1 year ago by [email protected] to c/[email protected]
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Is it possible to buy RAW SD cards? I mean without a master boot record or partition table. I have been using WinHex to write zeros to all the memory addresses thereby wiping out the partition tables, but this is time consuming. Can I just buy them "blank"? Does anyone have a source?

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[–] [email protected] 1 points 1 year ago

To clarify: I have written my own "disk operating system" for an MCU. I simply reads and writes for the first 2Gb of an SD card. I need to write my target image to be loaded on to the MCU at 0x000 and I find that the MBR resides there. I have to load the image from a desk-top PC and the MDB and GPT put me way further into memory (0x01FF).