udev does not create /dev/sdX device files for USB device.

Issue

• When USB device is connected to the system, following messages are being logged in /var/log/messages file which indicates that USB device is detected as disk sde. But it was found that there was not device file /dev/sde created for it.

Jan 20 12:25:57 host1 kernel: usb 2-3: new high speed USB device using ehci_hcd and address 6
Jan 20 12:25:57 host1 kernel: usb 2-3: configuration #1 chosen from 1 choice
Jan 20 12:25:57 host1 kernel: scsi8 : SCSI emulation for USB Mass Storage devices
Jan 20 12:26:02 host1 kernel:   Vendor: Kingston  Model: DataTraveler II+  Rev: PMAP
Jan 20 12:26:02 host1 kernel:   Type:   Direct-Access                      ANSI SCSI revision: 00
Jan 20 12:26:02 host1 kernel: SCSI device sde: 8059904 512-byte hdwr sectors (4127 MB)      <---
Jan 20 12:26:02 host1 kernel: sde: Write Protect is off
Jan 20 12:26:02 host1 kernel: sde: assuming drive cache: write through
Jan 20 12:26:02 host1 kernel: SCSI device sde: 8059904 512-byte hdwr sectors (4127 MB)
Jan 20 12:26:02 host1 kernel: sde: Write Protect is off
Jan 20 12:26:02 host1 kernel: sde: assuming drive cache: write through
Jan 20 12:26:02 host1 kernel:  sde: unknown partition table
Jan 20 12:26:02 host1 kernel: sd 8:0:0:0: Attached scsi removable disk sde
Jan 20 12:26:02 host1 kernel: sd 8:0:0:0: Attached scsi generic sg5 type 0