[SOLVED]USB mass storage device problem

Larckov · 2016-01-11 23:24:00

Hi,

I have a usb stick with music. I can play it on an external speaker, but in the computer doesn't appear, neither on Linux, Windows or Mac OS. After I plug in the stick the dmesg says:

[  927.473491] usb 2-1.6: new high-speed USB device number 9 using ehci-pci
[  927.569062] usb-storage 2-1.6:1.0: USB Mass Storage device detected
[  927.569603] scsi host11: usb-storage 2-1.6:1.0
[  928.570350] scsi 11:0:0:0: Direct-Access              USB MEMORY BAR   1000 PQ: 0 ANSI: 0 CCS
[  928.573399] sd 11:0:0:0: [sdb] Attached SCSI removable disk

And I can not see it with thunar, or GParted. I have no idea why says SCSI. Any thoughts?

Last edited by Larckov (2016-01-12 21:40:58)

mich41 · 2016-01-12 00:14:21

Like, there is no /dev/sdb file?

As for SCSI, it's nothing unusual. USB storage specification is based on SCSI commands so Linux treats these devices as SCSI disks.

Larckov · 2016-01-12 00:37:13

mich41 wrote:

Like, there is no /dev/sdb file?
As for SCSI, it's nothing unusual. USB storage specification is based on SCSI commands so Linux treats these devices as SCSI disks.

Thank you for answer. Sadly, there is no file/folder for sdb.

2ManyDogs · 2016-01-12 01:00:12

What is the output of the following commands (with the stick plugged in)?

lsusb
ls /dev/sd*

What file system is on the usb stick? How did you create it and add the music files to it?

Last edited by 2ManyDogs (2016-01-12 01:00:43)

tom.ty89 · 2016-01-12 07:03:17

FWIW, libata has become an SATL so most (if not all) ATA drives are treated as SCSI disk too \o/

wtx · 2016-01-12 17:10:21

Show what returns:

lsblk
lsscsi

R00KIE · 2016-01-12 17:58:43

You don't have partitions on that stick and I would guess that there is no filesystem either so I'm not sure what you expected to see in thunar.

About gparted, are you sure you ran it as root?

Larckov · 2016-01-12 18:26:59

Thank you all of you for your responses. I really do not know what had happened, but after reboot the stick worked. To be fair I do not reboot often because of some services I have running.

To answer some of your questions, I executed GParted as root. The pen drive had FAT32, and after the reboot I change it to NTFS. I didn't know how was formatted because it wasn't mine. I still don't know why didn't recognized the pen drive, may be a module? any ideas?

Also, thank you, I didn't know about the libata change. It is good to know it.

2ManyDogs · 2016-01-12 19:10:36

If you updated and got a kernel upgrade, that could cause the USB stick to be unreadable until you rebooted into the new kernel.

Larckov · 2016-01-12 19:24:43

2ManyDogs wrote:

If you updated and got a kernel upgrade, that could cause the USB stick to be unreadable until you rebooted into the new kernel.

It had to be that. I was on vacation and then came back and upgrade everything. I will check that the next time before I post something here. I will change it to solve. Thank you!

Arch Linux

#1 2016-01-11 23:24:00

[SOLVED]USB mass storage device problem

#2 2016-01-12 00:14:21

Re: [SOLVED]USB mass storage device problem

#3 2016-01-12 00:37:13

Re: [SOLVED]USB mass storage device problem

#4 2016-01-12 01:00:12

Re: [SOLVED]USB mass storage device problem

#5 2016-01-12 07:03:17

Re: [SOLVED]USB mass storage device problem

#6 2016-01-12 17:10:21

Re: [SOLVED]USB mass storage device problem

#7 2016-01-12 17:58:43

Re: [SOLVED]USB mass storage device problem

#8 2016-01-12 18:26:59

Re: [SOLVED]USB mass storage device problem

#9 2016-01-12 19:10:36

Re: [SOLVED]USB mass storage device problem

#10 2016-01-12 19:24:43

Re: [SOLVED]USB mass storage device problem

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