[gentoo-user] usb mp3 player can't be mounted

[gentoo-user] usb mp3 player can't be mounted

[maxim wexler]

Hi group,

I posted earlier on this subject but scored no hits.
I've been poking around on the Web for answers but so
far without luck.

When I plug the player into port and $dmesg, this
comes up:

<snip>
usb 1-2: new full speed USB device using uhci_hcd and
address 2
usb 1-2: configuration #1 chosen from 1 choice
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 2
usb-storage: waiting for device to settle before
scanning
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
scsi 0:0:0:0: Direct-Access     USB      FLASH DISK
V2.0  2120 PQ: 0 ANSI: 2
usb-storage: device scan complete
usbcore: registered new interface driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
usb 1-2: USB disconnect, address 2
usb 1-2: new full speed USB device using uhci_hcd and
address 3
usb 1-2: configuration #1 chosen from 1 choice
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 3
usb-storage: waiting for device to settle before
scanning
scsi 1:0:0:0: Direct-Access     USB      FLASH DISK
V2.0  2120 PQ: 0 ANSI: 2
usb-storage: device scan complete

Why won't it assign a drive, like /dev/sda? It does on
another machine with virtually the same setup.

Nothing shows up in udevinfo, cat /proc/partitions. 

but,

#lsusb 
Bus 001 Device 003: ID 04e8:9826 Samsung Electronics
Co., Ltd

and 

$cat /proc/bus/usb/devices
<snip>
S: Manufacturer=NewTech Inc
S: Product=USB Mass Storage Device 2.0
<snip>

I tried making the node manually(assuming /dev/sda)

#mknod /dev/sda b 8 0

but attempts to mount the device return "/dev/sda is
not a valid block device"

What am I missing?

Maxim


 
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Re: [gentoo-user] usb mp3 player can't be mounted

[Michael Niggli]

maxim wexler wrote:
> Hi group,
>
> I posted earlier on this subject but scored no hits.
> I've been poking around on the Web for answers but so
> far without luck.
>
> When I plug the player into port and $dmesg, this
> comes up:
>
> <SNIP>
>
> Why won't it assign a drive, like /dev/sda? It does on
> another machine with virtually the same setup.
>
> Nothing shows up in udevinfo, cat /proc/partitions. 
>
> but,
>
> #lsusb 
> Bus 001 Device 003: ID 04e8:9826 Samsung Electronics
> Co., Ltd
>
> and 
>
> $cat /proc/bus/usb/devices
> <snip>
> S: Manufacturer=NewTech Inc
> S: Product=USB Mass Storage Device 2.0
> <snip>
>
> I tried making the node manually(assuming /dev/sda)
>
> #mknod /dev/sda b 8 0
>
> but attempts to mount the device return "/dev/sda is
> not a valid block device"
>
> What am I missing?
>
> Maxim
>   
In the other post you mentioned that the kernel configs of those two 
machines are,
concerning USB settings, the same. But how about SCSI disk support? It 
seems to
be needed for USB storage, or at least its help text in menuconfig says 
so... :)


Michael
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Re: [gentoo-user] usb mp3 player can't be mounted

[John covici]

on Thursday 07/05/2007 Michael Niggli(m.niggli@gmail.com) wrote
 > maxim wexler wrote:
 > > Hi group,
 > >
 > > I posted earlier on this subject but scored no hits.
 > > I've been poking around on the Web for answers but so
 > > far without luck.
 > >
 > > When I plug the player into port and $dmesg, this
 > > comes up:
 > >
 > > <SNIP>
 > >
 > > Why won't it assign a drive, like /dev/sda? It does on
 > > another machine with virtually the same setup.
 > >
 > > Nothing shows up in udevinfo, cat /proc/partitions. 
 > >
 > > but,
 > >
 > > #lsusb 
 > > Bus 001 Device 003: ID 04e8:9826 Samsung Electronics
 > > Co., Ltd
 > >
 > > and 
 > >
 > > $cat /proc/bus/usb/devices
 > > <snip>
 > > S: Manufacturer=NewTech Inc
 > > S: Product=USB Mass Storage Device 2.0
 > > <snip>
 > >
 > > I tried making the node manually(assuming /dev/sda)
 > >
 > > #mknod /dev/sda b 8 0
 > >
 > > but attempts to mount the device return "/dev/sda is
 > > not a valid block device"
 > >
 > > What am I missing?
 > >
 > > Maxim
 > >   
 > In the other post you mentioned that the kernel configs of those two 
 > machines are,
 > concerning USB settings, the same. But how about SCSI disk support? It 
 > seems to
 > be needed for USB storage, or at least its help text in menuconfig says 
 > so... :)

There is also another config which I found very helpful -- for at
least recognizing a card reader which is not in the default config and
that is
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y

Hope this helps.

-- 
Your life is like a penny.  You're going to lose it.  The question is:
How do
you spend it?

         John Covici
         covici@ccs.covici.com
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Re: [gentoo-user] usb mp3 player can't be mounted

[maxim wexler]

  > concerning USB settings, the same. But how about
> SCSI disk support? It 

It's there.

> CONFIG_SCSI_MULTI_LUN=y
> 

No help.

OS finds the device and scans it but refuses to assign
a drive letter.

-mw


 
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Re: [gentoo-user] usb mp3 player can't be mounted

[Willie Wong]

On Thu, Jul 05, 2007 at 12:20:38PM -0700, Penguin Lover maxim wexler squawked:
>   > concerning USB settings, the same. But how about
> > SCSI disk support? It 
> 
> It's there.
> 
> > CONFIG_SCSI_MULTI_LUN=y
> > 
> 
> No help.
> 
> OS finds the device and scans it but refuses to assign
> a drive letter.
> 
> -mw

Perhaps a udev problem? What is your kernel version and what is your
udev version? I had a problem several months ago when a usb mass
storage device gets scanned but udev would not create the entry in
/dev. For me the solution is to either downgrade udev to a version
compatible with the running kernel or to upgrade my kernel so it
communicates well with udev. 

W
-- 
It's one o them musics with little sticky prongs all over it
so it can cling to the inside of your head for days.
   ~S
Sortir en Pantoufles: up 209 days, 23:56
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Re: [gentoo-user] usb mp3 player can't be mounted

[maxim wexler]

> > OS finds the device and scans it but refuses to
> assign
> > a drive letter.
> > 
> > -mw
> 
> Perhaps a udev problem? What is your kernel version

Thnks, Willie, turns out it was a missing sd_mod.

All fixed now.

-mw


       
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