Pendrive mount problems

[daniSeac02]

Hi everyone,
I had some problem with mount / umount pendrive devices.
I am used to do:

mount /dev/sda1 /mnt/pendrive

as su. Usually the first time I can mount successfully my pendrive device, and the second time a cannot. Obviously I umounted the device before remount it again.

Tipical erros I give are:

mount: No medium found
or
mount: you have to specify file system type


Any suggestion?
Thanks

Daniele

ps: I'm using RH9 (kernel 2.4.20-8)

[UgoDeschamps]

What do you meen in the first time I can and not the second...

Do you do it this way, you mount, everything work..
you umount , to remove the pen drive...
you mount, and it doesnt recongnize it...

Did you unplug it after umounting?
if you reboot doesnt it work?
whats the filesystem on this device?
is it fstab? while not working is it in mstab?

[daniSeac02]

mount /dev/sda1 /mnt/pendrive
...
umount /mnt/pendrive

unplug the pendrive and reinserted it

mount /dev/sda1 /mnt/pendrive

don't work (error filesystem not specified). then I tryed with:

mount -t auto /dev/sda1 /mnt/pendrive

nothing...


If I reboot it works.

I have
/dev/sda1 /mnt/pendrive vfat user 0 0

in my fstab

[UgoDeschamps]

Instead of "auto" in mount command try "vfat"

[Mord]

This is a known problem. Try this, slightly modified procedure, my changes in bold:

mount /dev/sda1 /mnt/pendrive
...
umount /mnt/pendrive

unplug the pendrive and reinserted it

touch /dev/sda

mount /dev/sda1 /mnt/pendrive


I don't know if you are using Gentoo or not, but according to the fine people over in the Gentoo forums, the very best way to get around this problem is to start using udev instead.

I don't buy it though. Its clearly a bug, I don't care how deep in the design it runs.

Anyway, I've gotten around it using that touch command, even going so far as using sudo to allow all my users the ability to "touch" that device entry so that they can continue using thumbdrives.

[ccBEST]

Hi, I had somehow connected problem.
I'm with Fedora Core 4, Kernel version 2.6.17-1.2142.
If I mount and umont my device as a root, everyting goes ok.
Even after umount I unplug my device, and plug it again and it mount it again without any problems.
BUT I need to give rights to someone who must not know the root password to be able to mount and umount a flash memory stick. Is there a way to do this? I gave his account rights and even ownership of any system files which contains "mount" but it does not help.
Any ideas?

[abhilasha]

i inserted the pen drive and typed the following command at command prompt

# mount -t vfat /dev/sda1 /mnt/pendrive

a error message comes:
mount : /dev/sda1 already mounted or /mnt/pendrive is busy


what should i do

[abhilasha]

i inserted the pen drive and typed the following command at command prompt

# mount -t vfat /dev/sda1 /mnt/pendrive

a error message comes:
mount : /dev/sda1 already mounted or /mnt/pendrive is busy


what should i do

[bryansmith]

This means that either /dev/sda1 is mounted or something is mounted at /mnt/pendrive

Try unmounting each and see if that resolves the problem.

Bryan

[ccBEST]

Dear abhilasha,

Are you a root of the machine, where you are trying to mount your pendrive? If you are a root, Linux usually mount its sda drives automatically, so it said that it is already mounted…
Try to see in Home, tab where devices are listed /, /boot… See if there is something like pendrive sda1 with a recognizable icon. If there is, just make a double click on it, and it will open it, automatically. Be sure, that you had clicked right button, and had choose “safety remove”, before unplug your pendrive device.

Good Luck.