How to disable USB security?

[pfeigl]

Hello all. I have Slackware 12.0 installed and I'm trying to transfer data on my USB stick from PC to Linux. Whenever I access the folder containing the USB stick, I get a dialog box that says I don't have permission to receive this "message". I am logged in as root, so what the...

Peter

[Freston]

Sometimes not even root has enough permissions. But not in simple tasks like file transfer between media.

Can you post the output of these commands (issued when you receive said message)

mount

Checks whether the device is mounted

lsusb

Checks whether the device is recognized

And, a couple of seconds after you plug in the device:

dmesg | tail

To see the kernel response.

It could be, but I'm not sure, that the device was not properly unmounted. That sometimes causes problems.

[pfeigl]

Hi. Here is the output. I apologize in advance for any typos.
# mount
/dev/sda1 on /type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
usbfs on /proc/bus/usb type usbfs (rw)

#lsusb
Bus 3 Device1:ID XXXX:XXXX
Bus 3 Device2:ID XXXX:XXXX Alcor Micro Corp
Bus 1 Device6:ID XXXX:XXXX Feiya Technology Memory Bar
Bus 1 Device1
Bus 2 Device2

#dmesg | tail
sdf: Mode Sense 43 00 00 00
sdf: assuming drive cache: write through
SCSI device sdf 7929856 512-byte hdwr sectors (4060MB)
sdf:Write protect is off
sdf: Mode Sense 43 00 00 00
sdf: assuming drive cache: write through
sdf:sdf1
sd 8:0:0:0 Attached scsi removable disk sdf
sd 8:0:0:0 Attached scsi generic sg5 type 0
usb-storage device scan complete

Whew!

Peter

[devils casper]

Post the output of fdisk -l command here. Its small L in fdisk -l.

[pfeigl]

I'm sorry but I'm just not in the mood to write all that down. But I can tell you that from what I see is that the machine definitely sees a 4GB stick on /dev/sdf1. Interestingly, when I umounted that drive, it said it was not mounted.

Peter

[devils casper]

Have you tried to mount /dev/sdaf1 using mount command? What error message does it throw?

[Freston]

I'm sorry but I'm just not in the mood to write all that down. But I can tell you that from what I see is that the machine definitely sees a 4GB stick on /dev/sdf1. Interestingly, when I umounted that drive, it said it was not mounted.

Ehm... you are the one requesting help. These diagnosis are part of helping you. That's the Bad News. The Good News is that you can just copy&paste from the terminal to the browser while posting. I sure wouldn't have felt like retyping all that either. I let my computer do that

Have you tried to mount /dev/sdaf1 using mount command? What error message does it throw?

Probably (as root) mount: can't find /dev/sdf1 in /etc/fstab or /etc/mtab
And as user: mount: can't find /dev/sdf1 in /etc/fstab or /etc/mtab
Don't you think


I'm thinking there just needs to be an entry in fstab. But before that try this command: (as root)

mkdir /mnt/usb ; mount /dev/sdf1 /mnt/usb ; ls /mnt/usb

---

But I can tell you that from what I see is that the machine definitely sees a 4GB stick on /dev/sdf1. Interestingly, when I umounted that drive, it said it was not mounted.

fdisk doesn't need the device to be mounted in order to see it. It sees unmounted devices as well. From your other post I can see that your USB stick wasn't mounted, but did indeed get recognized.
I still can't explain the error message you received. But if the previous command worked, then that may not matter. You'll need to edit fstab so you can mount your usb as regular user.

[devils casper]

Probably (as root) mount: can't find /dev/sdf1 in /etc/fstab or /etc/mtab
And as user: mount: can't find /dev/sdf1 in /etc/fstab or /etc/mtab
Don't you think

Thats why I suggested him to mount /dev/sdaf1 using mount command. It doesn't mean TS has to execute mount command only. He/she has to specify device name along with other options, like the way you suggested.

[pfeigl]

Hello. I was writing it down because I wasn't using that machine to post. Doh! I will try what you said but when I put the stick in a dialog pops up right away asking if I want to open it or do nothing. Of course if I choose the former I get the security message.

Peter

P.S. No, there are no security "features" on the stick.

[devils casper]

Execute this :

mkdir usb
mount -t vfat /dev/sdf1 usb -o defaults,umask=0
ls usb

Post exact error message here, if any.
I assumed that USB stick is formatted in FAT32 filesystem.