Re: sda disapering
On 8/12/05, Enrique Morfin <enriquemorfin@yahoo.com> wrote:
> Hi!
>
> i'm using sid, kernel image 2.6.10:
>
> # uname -a
> Linux quetzalcoatl 2.6.10-1-686-smp #1 SMP Tue Jan 18
> 03:03:11 EST 2005 i686 GNU/Linux
>
> #uptime
> 17:08:44 up 160 days, 23:47, 1 user, load average:
> 0.27, 1.02, 1.77
>
> My usb memory was working flawlessly (all 160 days),
> until today.
>
> Then i realize it is no the memory, anything i insert
> in usb (flash memory, mouse, hard drive, etc.). So,
> lets take the memory for example:
>
> When i inser it:
>
> #dmesg
> usb 4-1: new full speed USB device using uhci_hcd and
> address 46
> scsi50 : SCSI emulation for USB Mass Storage devices
> usb-storage: device found at 46
> usb-storage: waiting for device to settle before
> scanning
> Vendor: Model: Rev:
> Type: Direct-Access ANSI SCSI
> revision: 02
> SCSI device sda: 1024000 512-byte hdwr sectors (524
> MB)
> sda: assuming Write Enabled
> sda: assuming drive cache: write through
> SCSI device sda: 1024000 512-byte hdwr sectors (524
> MB)
> sda: assuming Write Enabled
> sda: assuming drive cache: write through
> /dev/scsi/host50/bus0/target0/lun0: p1
> Attached scsi removable disk sda at scsi50, channel 0,
> id 0, lun 0
> usb-storage: device scan complete
>
> and:
>
> #ls -alh /dev/sda*
> brw-rw---- 1 root disk 8, 0 Aug 12 17:06 /dev/sda
> brw-rw---- 1 root disk 8, 1 Aug 12 17:06 /dev/sda1
> brw-rw---- 1 root disk 8, 10 Mar 14 2002 /dev/sda10
> brw-rw---- 1 root disk 8, 11 Mar 14 2002 /dev/sda11
> brw-rw---- 1 root disk 8, 12 Mar 14 2002 /dev/sda12
> brw-rw---- 1 root disk 8, 13 Mar 14 2002 /dev/sda13
> brw-rw---- 1 root disk 8, 14 Mar 14 2002 /dev/sda14
> brw-rw---- 1 root disk 8, 15 Mar 14 2002 /dev/sda15
> brw-rw---- 1 root disk 8, 2 Mar 14 2002 /dev/sda2
> brw-rw---- 1 root disk 8, 3 Mar 14 2002 /dev/sda3
> brw-rw---- 1 root disk 8, 4 Mar 14 2002 /dev/sda4
> brw-rw---- 1 root disk 8, 5 Mar 14 2002 /dev/sda5
> brw-rw---- 1 root disk 8, 6 Mar 14 2002 /dev/sda6
> brw-rw---- 1 root disk 8, 7 Mar 14 2002 /dev/sda7
> brw-rw---- 1 root disk 8, 8 Mar 14 2002 /dev/sda8
> brw-rw---- 1 root disk 8, 9 Mar 14 2002 /dev/sda9
>
> but, when i disconect it (umounting first):
> #ls -alh /dev/sda*
> brw-rw---- 1 root disk 8, 10 Mar 14 2002 /dev/sda10
> brw-rw---- 1 root disk 8, 11 Mar 14 2002 /dev/sda11
> brw-rw---- 1 root disk 8, 12 Mar 14 2002 /dev/sda12
> brw-rw---- 1 root disk 8, 13 Mar 14 2002 /dev/sda13
> brw-rw---- 1 root disk 8, 14 Mar 14 2002 /dev/sda14
> brw-rw---- 1 root disk 8, 15 Mar 14 2002 /dev/sda15
> brw-rw---- 1 root disk 8, 2 Mar 14 2002 /dev/sda2
> brw-rw---- 1 root disk 8, 3 Mar 14 2002 /dev/sda3
> brw-rw---- 1 root disk 8, 4 Mar 14 2002 /dev/sda4
> brw-rw---- 1 root disk 8, 5 Mar 14 2002 /dev/sda5
> brw-rw---- 1 root disk 8, 6 Mar 14 2002 /dev/sda6
> brw-rw---- 1 root disk 8, 7 Mar 14 2002 /dev/sda7
> brw-rw---- 1 root disk 8, 8 Mar 14 2002 /dev/sda8
> brw-rw---- 1 root disk 8, 9 Mar 14 2002 /dev/sda9
>
> sda and sda1 are gone!!
>
> i have to recreate them (whit mknod) each time i
> disconect someting (flash memory, external hd, etc.)
>
> Any ideas why is happening this? kernel bug? module
> bug? too much time running? hardware failing (intel
> 865g)?
>
> Any ideas how to fix this? reboot? (like windogs?),
> remove the module and reload it? update kernel? buy a
> new motherboard?
Looks like you're using udev. udev automatically deletes and creates
/dev entries when the hardware is removed and attached - try
reattaching the hardware, the /dev entries should reappear.
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