sd 3:0:0:0: Attached SCSI removable disk sd 3:0:0:0: Write cache: disabled, read cache: enabled, doesn’t support DPO or FUA sd 3:0:0:0: Attached scsi generic sg1 type 0 scsi 3:0:0:0: Direct-Access Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 4 usbcore: registered new interface driver uas usbcore: registered new interface driver usb-storage usb-storage 2-2:1.0: USB Mass Storage device detected usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-2: New USB device found, idVendor=0930, idProduct=6544 This is part of output of dmesg command, since output is very large, you can try on your Linux terminal This is output of dmesg command when I plugged in USB drive and then unplugged it. Since output of dmesg command is very large, so for finding specific information in dmesg output, it is better to use dmesg command with less or grep command. u –userspace : print userspace messages. t –notime : do not print kernel’s timestamps. F –file file : read the messages from given file. E –console-on : Enable printing messages to console. D –console-off : disable the messages printing to console. c –read-clear : clear the ring buffer after printing its contents. The dmesg command can be useful when system encounters any problem during its start-up, so by reading the contents of dmesg command you can actually find out where the problem occurred(as there are many steps in system boot-up sequence). ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.
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