Problem while mounting the USB flash drive

Nishant Desai · 09-01-2006, 12:12 AM

Dear All,

I have just do the necessary changes in the /mnt folder and my /etc/fstab file for detecting the USB flash drive into my PC and my PC is also detecting the flash drive at /mnt/usbstick and shows the contents there also, but when i try to mount it through the command, it shows me that
"mount: fs type 0 not supported by kernel"
what kind of problem is that and what could be the solution for that?

Thanks in Advance,
Nishant

Bruce Hill · 09-01-2006, 09:56 AM

It sounds as if you have the fields incorrect in /etc/fstab.

You can read "man fstab" and it tells you what goes in each field.

This example is from my workstation, where regular users can mount
them read/write (rw).

Code:

/dev/sdb1        /usb1            vfat        noauto,users,rw,umask=1000  0  0
/dev/sdc1        /usb2            vfat        noauto,users,rw,umask=1000  0  0

If you will post your /etc/fstab we will look at it and advise you.

Nishant Desai · 09-01-2006, 11:13 AM

Quote:

Originally Posted by Bruce Hill

It sounds as if you have the fields incorrect in /etc/fstab.

You can read "man fstab" and it tells you what goes in each field.

This example is from my workstation, where regular users can mount
them read/write (rw).

Code:

/dev/sdb1        /usb1            vfat        noauto,users,rw,umask=1000  0  0
/dev/sdc1        /usb2            vfat        noauto,users,rw,umask=1000  0  0

If you will post your /etc/fstab we will look at it and advise you.

Dear Bruce,

Let me show you code frm my fstab file:

"/dev/sda1 /usb1 vfat noauto,users,rw,umask=0,0,0", this is the way code is in my fstab file and me myself has add this code, there are two differences one is i ve taken sda1 and another one is that i gave the umask=0,0,0 insead of umask=1000 0 0 in ur file.

Last time wen i had done this, it has mounted simply without any problem, idn know what is the problem this time occurs

Thanks,
Nishant

Bruce Hill · 09-01-2006, 04:26 PM

Nishant Desai,

I tried changing my /etc/fstab to the exact line of your /etc/fstab
and this is what happened.

First:

Code:

mingdao@silas:~$ cat /etc/fstab | grep -i vfat
/dev/sda2        /Shared          vfat        users,umask=1000,rw,auto  1   0
#/dev/sdb1        /usb1            vfat        noauto,users,rw,umask=1000  0  0  <-- this is my line
/dev/sdb1         /usb1           vfat        noauto,users,rw,umask=0,0,0  <-- this is your line
/dev/sdc1        /usb2            vfat        noauto,users,rw,umask=1000  0  0

Then I plugged in my Lexar USB 2.0 flash disk and issued:

Code:

mingdao@silas:~$ dmesg | tail
usb 1-6: reset high speed USB device using ehci_hcd and address 6
usb 1-6: reset high speed USB device using ehci_hcd and address 6
usb 1-6: reset high speed USB device using ehci_hcd and address 6
sdb: Write Protect is off
sdb: Mode Sense: 02 00 00 00
sdb: assuming drive cache: write through
 sdb: sdb1
sd 2:0:0:0: Attached scsi removable disk sdb
sd 2:0:0:0: Attached scsi generic sg1 type 0
usb-storage: device scan complete

which outputs the last 10 lines of dmesg. We can see that the
device is scanned, module is loaded, and it is /dev/sdb1 here.

Next I issued and received this output:

Code:

mingdao@silas:~$ mount /usb1
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

So I did what it asked. I issued "dmesg | tail" again:

Code:

mingdao@silas:~$ dmesg | tail
usb 1-6: reset high speed USB device using ehci_hcd and address 6
usb 1-6: reset high speed USB device using ehci_hcd and address 6
sdb: Write Protect is off
sdb: Mode Sense: 02 00 00 00
sdb: assuming drive cache: write through
 sdb: sdb1
sd 2:0:0:0: Attached scsi removable disk sdb
sd 2:0:0:0: Attached scsi generic sg1 type 0
usb-storage: device scan complete
FAT: Unrecognized mount option "0" or missing value  <-- this is the problem

So we see that I have duplicated your problem. My Linux distribution
and kernel handled the output differently, but the problem is the same.

Quote:

Originally posted by Nishant Desai
"/dev/sda1 /usb1 vfat noauto,users,rw,umask=0,0,0", this is the way code is in my fstab file and me myself has add this code, there are two differences one is i ve taken sda1 and another one is that i gave the umask=0,0,0 insead of umask=1000 0 0 in ur file.

We can understand that the code you added is incorrect. As I told
you in my first post:

Quote:

Originally posted by Bruce Hill
It sounds as if you have the fields incorrect in /etc/fstab.

Now we can see that this is indeed the problem.

You should change your umask value so that it will mount.

Bruce Hill · 09-01-2006, 05:01 PM

It sounds as if you have the fields incorrect in /etc/fstab.

You can read "man fstab" and it tells you what goes in each field.

This example is from my workstation, where regular users can mount
them read/write (rw).

Code:

/dev/sdb1        /usb1            vfat        noauto,users,rw,umask=1000  0  0
/dev/sdc1        /usb2            vfat        noauto,users,rw,umask=1000  0  0

If you will post your /etc/fstab we will look at it and advise you.

Nishant Desai · 09-03-2006, 11:42 PM

Quote:

Originally Posted by Bruce Hill

It sounds as if you have the fields incorrect in /etc/fstab.

You can read "man fstab" and it tells you what goes in each field.

This example is from my workstation, where regular users can mount
them read/write (rw).

Code:

/dev/sdb1        /usb1            vfat        noauto,users,rw,umask=1000  0  0
/dev/sdc1        /usb2            vfat        noauto,users,rw,umask=1000  0  0

If you will post your /etc/fstab we will look at it and advise you.

Dear Bruce,

Thanks for the information and yes i think you are right from your side, that it will be a problem in the fstab file, but now i have change my fstab file's value same as you told and it is still giving me the same problem, i have change my fstab file codes to

/dev/sdb1 /usb1 vfat noauto,users,rw,umask=1000,0,0

and it is still giving me the same error, so i didnt came up to any results.

Thanks,
Nishant

Bruce Hill · 09-04-2006, 03:59 AM

You must remove those commas and use spaces where you now have commas in the umask area:

Code:

/dev/sdb1 /usb1 vfat noauto,users,rw,umask=1000 0 0

Nishant Desai · 09-04-2006, 11:31 PM

Quote:

Originally Posted by Bruce Hill

You must remove those commas and use spaces where you now have commas in the umask area:

Code:

/dev/sdb1 /usb1 vfat noauto,users,rw,umask=1000 0 0

Ok,
Let me try out that and i will reply u soon with the result.

Thanks,
Nishant