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PSJoshi/SD-card-information.md

Last active September 23, 2022 07:55
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Read SD memory card information
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SD-card-information.md

Read SD memory card information

$ sudo udevadm info -a -n /dev/sdb

SD card vendors should be in /sys/class/mmc_host within /sys/class

Try searching /sys for some MMC (SD) specific keywords for ARM-based embedded system

$ find /sys -name "oemid"
/sys/class/mmc_host/mmc0/mmc0:aaaa/oemid
$ find /sys -name "cid"
/sys/class/mmc_host/mmc0/mmc0:aaaa/cid
$ find /sys -name "csd"
/sys/class/mmc_host/mmc0/mmc0:aaaa/csd

Another way:

# lsblk -o name,serial,uuid,partuuid,label,partlabel /dev/sdb

# lsblk -o name,serial,uuid,partuuid,label,partlabel $(blkid --label MY_MICROSD)

Ref: https://superuser.com/questions/696792/finding-attributes-of-mounted-sd-card

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