![]() Sector size (logical/physical): 512 bytes / 512 bytes The SPI protocol is sometimes not very reliable on newer cards.įsutil -l produces the following output: Disk /dev/sdc: 1996 MB, 1996488704 bytesĨ heads, 7 sectors/track, 69632 cylinders, total 3899392 sectors The board also seems to be using the SD protocol and not the SPI protocol. This doesn't seem to be a space issue - sometimes one 2GB SD card is slightly smaller than another. I have tried multiple cards, including some 4GB cards. The serial console produces a single error code when it fails to boot, 0x8020a007, which doesn't provide much useful during a Google search. I have also now used a SD to micro SD adapter in a direct SD card interface (/dev/mmcblk0) in a Thinkpad x220. ![]() This has produced a slightly different image file but still won't boot. I have also now tried the sg3_utils utility sg_dd which operates at a slightly lower level. When this new card is placed in the device, it fails to boot. Then after swapping cards: dd if=HeatmiserSDC.img of=/dev/sdc To achieve this, I obtained a similar 2GB micro SD card, and cloned the current SD card using dd in a USB card reader: dd if=/dev/sdc of=HeatmiserSDC.img ![]() I wish to alter the filesystem, but also backup the filesystem prior to altering it so that I don't brick the device. This has a Freescale iMX233 microprocessor and boots from a socketed 2GB microSD card. I have an embedded device which is loosely based around a Olinixino iMX233 design. ![]()
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