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On Thu, Nov 29, 2012 at 6:35 PM, Marco Bonfiglio |
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<marco.bonfiglio@×××××.com> wrote: |
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> |
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> |
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> 2012/11/29 Jorge Almeida <jjalmeida@×××××.com> |
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>> |
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>> Anyone knows how to dig into /sys to find the serial number of a device |
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>> (say, |
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>> a USB pen)? I few days ago I found by trial and error something like |
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>> $ cat |
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>> /sys/devices/pci0000:00/0000:00:06.1/usb2/2-4/2-4:1.0/host13/target13:0:0/13:0:0:0/block/sdc/../../../../../serial |
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>> which gave me E68911000519 |
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>> Now I can't find nothing of the sort. (Yes, I know the path changes |
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>> each time the |
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>> device is plugged in, but even so) |
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>> Any information that would put some order into this mess would be great. |
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>> |
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>> TIA |
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>> |
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>> Joreg Almeida |
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>> |
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> |
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> If by "serial" you mean UUID I personally use "ls -l /dev/disk/by-uuid/" |
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> |
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It is not the same thing, but anyway I have in /dev/disk/by-id/ a symlink |
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usb-silicon_-power_E68911000519-0:0 -> ../../sdd |
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|
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This is indeed the device I meant, and the serial number is the "E68911000519" |
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substring. But this symlink exists because udev created it. I need to somehow |
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dig it out of /sys, not out of /dev. IOW, how did udev retrieved the |
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information to create the symlink? The values of ../by-uuid/ would probably be |
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equally good, but I don't know how to find them any more than I know how to |
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find the serials... |
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|
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Thanks |
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J.A. |
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