Re: UDEV RULES

Robert Moskowitz <rgm@xxxxxxxxxxxxxxx> · Sun, 30 Jun 2019 09:56:05 -0400



    I use crontab to run an rsync command...

    
    On 6/30/19 8:38 AM, Angelo Moreschini
      wrote:

    
            Hi,
            in order to backing up data when I connect to computer
              an USB HD, I wrote the follow UDEV rule :
            ------------------------------------------------------------------
            SUBSYSTEM=="block", ACTION=""
              ATTRS{vendor}=="152d", ATTRS{model}=="0578",
               SYMLINK+="external%n", RUN+="/usr/bin/mrs-auto_backup.sh"
            -------------------------------------------------------------------
            the rule is the content of the file :
                  /etc/udev/rules.d/10.autobackup.rules 

            
            that I self created .
            

            I learned this method at the
              link :
                  https://www.tecmint.com/auto-backup-files-to-usb-media-in-linux/  ("How
                    to backup files to USB
                    media when connected")
            

            As well I tried in many different combinations and
              parameters values, never I was able to execute the script
              inside the rule.
            

            -----
            In order to get the USB HD characteristic of the USB
              Hard Disk to use for backing-up the data I used the
              command :
             <sudo udevadm info -q all -n /dev/sdc>
            and its output is transcribed below
            

            Could someone help me to understand because this rule
              doesn't works ?
            

            thank you
            regards
            Angelo
            
              -------------------
              features (attributes)
                        of the USB Hrd Disk that I got with the above
                        command    :

                  
              [angelo_dev@localhost ~]$ sudo udevadm info -q all -n
                /dev/sdc
              

              P:
/devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5.1/3-5.1.2/3-5.1.2:1.0/host6/target6:0:0/6:0:0:0/block/sdc

                      N: sdc

                      L: 0

                      S: external

                      S:
                      disk/by-path/pci-0000:00:14.0-usb-0:5.1.2:1.0-scsi-0:0:0:0

                      S: disk/by-id/usb-JMicron_Tech_DB12345681BC-0:0

                      E:
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5.1/3-5.1.2/3-5.1.2:1.0/host6/target6:0:0/6:0:0:0/block/sdc

                      E: DEVNAME=/dev/sdc

                      E: DEVTYPE=disk

                      E: MAJOR=8

                      E: MINOR=32

                      E: SUBSYSTEM=block

                      E: USEC_INITIALIZED=11404758453

                      E: ID_VENDOR=JMicron

                      E: ID_VENDOR_ENC=JMicron\x20

                      E: ID_VENDOR_ID=152d

                      E: ID_MODEL=Tech

                      E:
                      ID_MODEL_ENC=Tech\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20

                      E: ID_MODEL_ID=0578

                      E: ID_REVISION=0203

                      E: ID_SERIAL=JMicron_Tech_DB12345681BC-0:0

                      E: ID_SERIAL_SHORT=DB12345681BC

                      E: ID_TYPE=disk

                      E: ID_INSTANCE=0:0

                      E: ID_BUS=usb

                      E: ID_USB_INTERFACES=:080650:080662:

                      E: ID_USB_INTERFACE_NUM=00

                      E: ID_USB_DRIVER=uas

                      E:
                      ID_PATH=pci-0000:00:14.0-usb-0:5.1.2:1.0-scsi-0:0:0:0

                      E:
                      ID_PATH_TAG=pci-0000_00_14_0-usb-0_5_1_2_1_0-scsi-0_0_0_0

                      E: ID_PART_TABLE_UUID=0007fd62

                      E: ID_PART_TABLE_TYPE=dos

                      E: DEVLINKS=/dev/external
                      /dev/disk/by-path/pci-0000:00:14.0-usb-0:5.1.2:1.0-scsi-0:0:0:0
                      /dev/disk/by-id/usb-JMicron_Tech_DB12345681BC-0:0

                      E: TAGS=:systemd:
                

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