My SD card is automounted fine as /dev/sdb:
Product Code and Serial Numbers Location. Serial Number is required for product registration. The product code is located on the back of the SD card. Is there a utility that will read/write an SD's card's internal serial number? Since I own/purchased this card, I feel it's within my rights to copy it to a larger card. If I can read the internal serial number of the Garmin card, I would want to copy that internal serial number to my larger card (I have a SanDisk 8G microSD).
In dmesg
:
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I would like to know a few attributes - serial #, manufacturer id, etc. that I thought would be in /sys/class
. I have searched /sys/class/scsi_disk/3:0:0:0/
without any luck.
Where would I find this information? I am using the latest version of Arch-linux.
The proper way to do this, in Arch Linux but by now in all systems which use udev, is the command:
in your case.
Edit:
A reply to your comment: I believe you are mistaken. The class is a view of a device which is independent of the low-level implementation details. The classic example is a disk. You may of course have a SCSI disk or an ATA disk, but, at the class level, they are the same thing. The idea of the class is to allow users to build userspace code which is independent of how they are connected to the network, how they work, which device driver they use, and so on. In a way, the class is the highest level of abstraction available as a model for devices.
Thus you are wrong in searching for such details as your SD card vendor (which, by the way, should be in /sys/class/mmc_host, if anything at all) within /sys/class.
MariusMatutiaeMariusMatutiaeThe exact layout is driver dependent, but try searching /sys
for some MMC (SD) specific keywords. Below is from an ARM-based embedded system:
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Bunnie's blog entry on SD card shenanigans is a good place to start back-tracking what those ID numbers mean.
I don't use Arch Linux, but 'usb-devices' lists the details of all USB devices the system knows about, and included the following for a USB key I plugged in:
davidgodavidgoLooking at /sys/class/scsi_disk I discovered that (on my system) that these are symkinks to actual disks. Indeed when I do an 'ls -la /sys/class/scsi_disk/ it shows a symlink for 8:0:0:0 to ././devices/pci0000:00/0000:00:1c.4/0000:09:00.0/usb3/3-2/3-2.3/3-2.3:1.0/host8/target8:0:0/8:0:0:0/scsi_disk/8:0:0:0
If I then shift in to :/sys/devices/pci0000:00/0000:00:1c.4/0000:09:00.0/usb3/3-2/3-2.3/3-2.3:1.0/host8/target8:0:0/8:0:0:0 It has a number of files which I suspect are of interest to you including -
Also of interest might be parsing /proc/scsi -
davidgodavidgoI can't seem to find a way to find the serial number of my SD card. I've looked in /dev/disk/by-uuid, but the same uuid is used across multiple Pis that I have. I've also used the blkid command, but I can only seem to get the size of the SD card. Any help would be appreciated.
Edit: I managed to figure out where the 'serial number', aka CID, is found. For anyone who's interested, it's located in /sys/block/mmcblk0/device/cid. The CID contains info on when the card was manufactured, by whom and what its intended content is. For more information on the SD card standard check this out. I plan on using the CID to encrypt the files on the SD card so no one can take my card out and simply copy what's on it.