No /dev/sda or /dev/sda1

mago · 06-04-2006, 07:22 PM

Hello,

Ok this one got me.

I usually have this on the fstab to make the usb key working:

Code:

/dev/sda1    /mnt/key    noauto,noatime,sync,users   0   0

But is not working, I just update to slackware current and I'm running kernel 2.6.16.18.

The dmesg shows this when I plug the key in:

Code:

usb 1-1: new high speed USB device using ehci_hcd and address 3
usb 1-1: configuration #1 chosen from 1 choice
scsi2 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 3
usb-storage: waiting for device to settle before scanning
  Vendor: SanDisk   Model: Cruzer Mini       Rev: 0.1 
  Type:   Direct-Access                      ANSI SCSI revision: 02
SCSI device sda: 2001888 512-byte hdwr sectors (1025 MB)
sda: Write Protect is off
sda: Mode Sense: 03 00 00 00
sda: assuming drive cache: write through
SCSI device sda: 2001888 512-byte hdwr sectors (1025 MB)
sda: Write Protect is off
sda: Mode Sense: 03 00 00 00
sda: assuming drive cache: write through
 sda: sda1
sd 2:0:0:0: Attached scsi removable disk sda
sd 2:0:0:0: Attached scsi generic sg0 type 0
usb-storage: device scan complete

If I go to ls on /dev, I can see all de sda devices from sda2-sda15 but no sda1, ergo I cannot mount the device, tried with sg0 as well and no luck.

Please advice, no idea what is going on.

I do have compiled the usb-storage on the kernel and not as a module, as you can see on the dmesag.

wini_g · 06-04-2006, 07:43 PM

Stupid question - but are you specifing the filesystem in your fstab ?

mago · 06-04-2006, 07:45 PM

Yes of course, my bad...

The actual line in fstab is:

Code:

/dev/sda1   /mnt/key    vfat    noauto,noatime,users,sync 0 0

wini_g · 06-04-2006, 08:10 PM

What about all that automount etc - stuff in kernel & "userland" stuff which does such things as well ? ...

(limited knowledge on my part) (clearly shows kernel devs cant be of a social profession - the world outwidth the kernel - the userland - beware the badlands

) ... like I'm just poking the uncertainty fog which might just be a clue for a possible answer 8)

rkelsen · 06-04-2006, 08:12 PM

Quote:

Originally Posted by mago

If I go to ls on /dev, I can see all de sda devices from sda2-sda15 but no sda1

That is extremely strange.

Could you please post the exact output of

Code:

ls -la /dev/sd*

and

Code:

ls -la /dev/ub*

while the USB key is inserted.

If you haven't got other SCSI disks in your system, inserting a USB key should yield:

/dev/sda
/dev/sda1

or

/dev/ub
/dev/ub1

If you're not getting either of those, then I'd suggest that you have probably made a mistake while configuring your kernel.

detpenguin · 06-04-2006, 08:12 PM

dunno if this will help, but mine used to be /dev/sdb1, and once i upgraded to a 2.6 kernel, it switched to sde1. you might wanna try out some different variations....

Ilgar · 06-04-2006, 08:13 PM

The same happened to me. Just make /etc/rc.d/rc.udev executable. The latest updatates include one to udev, that is the reason.

mago · 06-04-2006, 08:14 PM

The funny thing is that the dmesg shows sda1 as the recognized device

Ilgar · 06-04-2006, 08:16 PM

Yes, in my case it was sdb1,it was missing in /dev/ (and only sdb1, not others). An executable rc.udev did the job.

mago · 06-08-2006, 11:12 AM

Thanks llgar that did the trick indeed!