jldupont Asked: 2009-10-24 08:03:41 +0800 CST2009-10-24 08:03:41 +0800 CST 2009-10-24 08:03:41 +0800 CST Which /dev/sdX is my usb stick on? 772 How can I determine which /dev/sdX device my usb stick is plugged into? I am running Ubuntu 9.04. linux 4 Answers Voted Best Answer wazoox 2009-10-24T08:32:45+08:002009-10-24T08:32:45+08:00 You may want to use /dev/disk/by-id or /dev/disk/by-uuid/ instead. These never change for a given device, whatever /dev/sdXX your pluggable drives have. kolypto 2009-10-24T10:27:40+08:002009-10-24T10:27:40+08:00 Execute sudo blkid : it will show block device names: /dev/sdc1: UUID="004A31DB4A31CDE2" LABEL="WinGamer" TYPE="ntfs" /dev/sdd1: LABEL="0DAY" UUID="9b14c03b-7251-434f-bbb9-eac42b2db927" TYPE="ext2" /dev/sdg5: LABEL="QFAT" UUID="4257-E346" TYPE="vfat" /dev/sdg6: LABEL="BACKUP-HDD" UUID="fee45c66-11bd-49fa-a62a-4a541716e8e1" TYPE="ext2" ptimlick 2009-10-24T08:19:45+08:002009-10-24T08:19:45+08:00 on a command line, do a ls /media and you will usually see it. e.g. on my system: $ ls /media cdrom cdrom0 cdrom1 floppy floppy0 LaCie LaCie is my usb stick failing that try $ lsusb on my system $ lsusb Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ... Bus 001 Device 004: ID 059f:1028 LaCie, Ltd ... If it shows up there but not in /media, you will need to figure out mounting, or ask another question.. Finally, I can type "mount" and look through the output for your answer, or in my case: $ mount | grep LaCie /dev/sdb on /media/LaCie type vfat (rw,nosuid,nodev,uhelper=hal,shortname=mixed,uid=1000,utf8,umask=077,flush) faultyserver 2009-10-24T08:05:18+08:002009-10-24T08:05:18+08:00 It will depend. Type dmesg at the console and the output should show the USB stick being mounted. Here is some example output: [ 2699.328853] Initializing USB Mass Storage driver... [ 2699.339045] scsi4 : SCSI emulation for USB Mass Storage devices [ 2699.345916] usbcore: registered new interface driver usb-storage [ 2699.345922] USB Mass Storage support registered. [ 2699.350764] usb-storage: device found at 3 [ 2699.350767] usb-storage: waiting for device to settle before scanning [ 2704.353322] usb-storage: device scan complete [ 2704.354353] scsi 4:0:0:0: Direct-Access USB DISK 2.0 0403 PQ: 0 ANSI: 0 CCS [ 2704.374592] sd 4:0:0:0: [sdb] 3981312 512-byte hardware sectors: (2.03 GB/1.89 GiB) [ 2704.415233] sd 4:0:0:0: [sdb] Write Protect is off [ 2704.415239] sd 4:0:0:0: [sdb] Mode Sense: 43 00 00 00 [ 2704.415242] sd 4:0:0:0: [sdb] Assuming drive cache: write through [ 2704.418087] sd 4:0:0:0: [sdb] 3981312 512-byte hardware sectors: (2.03 GB/1.89 GiB) [ 2704.419100] sd 4:0:0:0: [sdb] Write Protect is off [ 2704.419105] sd 4:0:0:0: [sdb] Mode Sense: 43 00 00 00 [ 2704.419107] sd 4:0:0:0: [sdb] Assuming drive cache: write through [ 2704.419114] sdb: sdb1 [ 2704.421024] sd 4:0:0:0: [sdb] Attached SCSI removable disk [ 2704.421093] sd 4:0:0:0: Attached scsi generic sg2 type 0 In my case its the sdb device that is assigned after I plug in a USB stick, since I have just the one internal hard drive in my laptop (sda).
You may want to use
/dev/disk/by-idor/dev/disk/by-uuid/instead. These never change for a given device, whatever/dev/sdXXyour pluggable drives have.Execute
sudo blkid: it will show block device names:on a command line, do a
ls /mediaand you will usually see it.e.g. on my system:
LaCie is my usb stick
failing that try
on my system
If it shows up there but not in /media, you will need to figure out mounting, or ask another question..
Finally, I can type "mount" and look through the output for your answer, or in my case:
It will depend. Type
dmesgat the console and the output should show the USB stick being mounted.Here is some example output:
In my case its the
sdbdevice that is assigned after I plug in a USB stick, since I have just the one internal hard drive in my laptop (sda).