I have vfat in the kernel and have reformatted my usb stick in windows (formatiting in linux won't work). All modules needed for a usb stick are built in the kernel. Any ideas on how to fix this? I am using udev and 2.6.9 custom kernel. Below is some output:
[root@wookie jjohnson]# mount /dev/stick mount: /dev/stick: can't read superblock
dmesg when plugged in and after mount command is run:
ehci_hcd 0000:00:1d.7: GetStatus port 1 status 001803 POWER sig=j CSC CONNECT hub 1-0:1.0: port 1, status 0501, change 0001, 480 Mb/s ehci_hcd 0000:00:1d.7: GetStatus port 1 status 001803 POWER sig=j CSC CONNECT hub 1-0:1.0: debounce: port 1: total 125ms stable 100ms status 0x501 ehci_hcd 0000:00:1d.7: CTRL: TypeReq=0x2301 val=0x2 idx=0x0 len=0 ==> -32 hub 1-0:1.0: port 1 not reset yet, waiting 50ms ehci_hcd 0000:00:1d.7: port 1 high speed ehci_hcd 0000:00:1d.7: GetStatus port 1 status 001005 POWER sig=se0 PE CONNECT usb 1-1: new high speed USB device using address 3 usb 1-1: new device strings: Mfr=2, Product=3, SerialNumber=4 usb 1-1: default language 0x0409 usb 1-1: Product: Cruzer Mini usb 1-1: Manufacturer: SanDisk Corporation usb 1-1: SerialNumber: 000036280 usb 1-1: hotplug usb 1-1: adding 1-1:1.0 (config #1, interface 0) usb 1-1:1.0: hotplug ub 1-1:1.0: usb_probe_interface ub 1-1:1.0: usb_probe_interface - got id uba: device 3 capacity nsec 512000 bsize 512 uba: was not changed uba: uba1 ub: signature 0x53550000 uba: tag orig 0x5 reply 0x55342 uba: made changed uba: device 3 capacity nsec 512000 bsize 512 uba: device 3 capacity nsec 512000 bsize 512 uba:end_request: I/O error, dev uba, sector 0 Buffer I/O error on device uba, logical block 0 end_request: I/O error, dev uba, sector 0 Buffer I/O error on device uba, logical block 0 unable to read partition table end_request: I/O error, dev uba, sector 0 FAT: unable to read boot sector
/dev/stick /mnt/usb vfat noauto,user 0 0
Maybe, yah. You need to change your fstab. You've got the right approach, but its a little off. Put the following in your fstab.
/mnt/usb /dev/stick vfat noauto,user 0 0
Then you should mount with the following
Look at the man pages for mount and you'll see that you just had the syntax switched around a bit.
[..save the penguins..]
Actaully your way is backwards... All my other devices are set up the way I had it.... Anyway I just tried it for sake of showing it doesn't work that way (modified fstab to your way too):
[root@wookie jjohnson]# mount /mnt/usb/ mount: /mnt/usb is not a block device
dmesg didn't put anything new in it either.
I was able to test a Lexmar stick and it worked fine... My guess is something changed in the latest kernel and my Sandisk is giving it a hard time. After I try to mount it the device LED shuts down also, and it disappears from the /dev/ listing. No idea why this is,and why it works just fine in Windoze. Oh well, I'll go get a Lexmar stick
Strange. I've got a 2.6.9 kernel (stick also OK with 2.6.9-nitro), a "no name" usb stick and SDDR-09 compiled into the kernel. My dmesg gives:
usb 1-2: new full speed USB device using address 2 scsi0 : SCSI emulation for USB Mass Storage devices Vendor: STF Model: Flash Drive Rev: 1.89 Type: Direct-Access ANSI SCSI revision: 02 USB Mass Storage device found at 2 sda: Unit Not Ready, sense: Current : sense = 70 6 ASC=28 ASCQ= 0 Raw sense data:0x70 0x00 0x06 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x28 0x00 0x00 0x00 0x00 0x00 SCSI device sda: 512000 512-byte hdwr sectors (262 MB) sda: assuming Write Enabled sda: assuming drive cache: write through sda: sda1 Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
then a "mount /dev/sda1 /mnt/tmp" give me access to by stick (ext2, used for backups). I don't bother with an entry in fstab as I only use it once each week.
cat /proc/bus/usb/devices gives
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0ea0 ProdID=6828 Rev= 1.10 S: Manufacturer=USB S: Product=Flash Disk S: SerialNumber=4CAA929F3F71A908 C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
You say you can't format it in Linux. To me "format" means creating a blank file system. Can you partition it in Linux (fdisk)?
By format I mean mkfs.vfat /dev/uba -or- mkfs.vfat /dev/uba1.
Fdisk returns (dev/uba) superblock error or not a (dev/uba1) block device response and gives dmesg a bunch of these and then the LED on the stick goes out:
end_request: I/O error, dev uba, sector 120 Buffer I/O error on device uba, logical block 15 end_request: I/O error, dev uba, sector 0 Buffer I/O error on device uba, logical block 0
fdisk and mkfs.* for my CF media just fine.
I don't know what it is about the Sandisk usb stick
I searched google and found a minority of people with similar problems but no solutions.
I also tried with and without Sanidisk support built in with the kernel. And the problem is reproducable on my laptop as well.