Pen drive problems

rotty · 10-20-2006, 02:04 AM

Slackware 11
Huge26.s kernal

I entered "/dev/sdb1 /mnt/usb vfat noauto,rw,umask=000 1 0 into the fstab file.

Now when i try to mount it with KDE's mounting app i get "mnt/usb does not exist".

Now i saw someone created the directory and it worked, how do you tweak the permissions?

And what is "Vfat" will this format work with pen drives used in windows computers?

cheers, rotty

pixotec · 10-20-2006, 02:09 AM

vfat is used by windows. use it under linux and you can read/write under windows, too.

rotty · 10-20-2006, 02:18 AM

Oh thanks, ok well that is number 2 assured (-:

just wondering about NO 1. question now.

cheers, rotty

arubin · 10-20-2006, 02:42 AM

Are you sure this should be sdb1. What does dmesg say?

cmk77 · 10-20-2006, 03:00 AM

what's the output of

Code:

ls -lh /mnt

In words: does the dir exist, does it have suitable permissions?

And what's the output of

Code:

dmesg | grep sdb

In words: is sdb indeed your usb stick?

duryodhan · 10-20-2006, 03:14 AM

I guess if root created that folder once and gave rw perms to it for all users it should work. Why don't you just make a usb folder where you DO have rw perms and mount the pen drive there?

rotty · 10-20-2006, 03:50 AM

The directory does not exist, i checked.

i ran fdisk -l when the USB drive is in their and it lists it as (sdb1) this is correct in other words.

cheers, rotty

arubin · 10-20-2006, 03:57 AM

mkdir /mnt/usb as root

rotty · 10-20-2006, 05:42 AM

OK i will do that, will other users be able to read/write to it?

cheers, rotty

arubin · 10-20-2006, 06:47 AM

They should be able to mount to the directory and read write.

rotty · 10-20-2006, 06:15 PM

Ok i made the directory i also used:

chmod 777 /bin/mount
chmod 777 /bin/umount

to give permissions and my fstab file entry is :

/dev/sdb1 /mnt/usb vfat auto,user,rw,umask=000 1 0

i can mount as root and unmount but i get the following when trying to mount as a user:

Mount:Must be superuser to use mount

I also tried (Just remembered i did not edit sudoers (Woops), what is an entry to add?):

mount /dev/sdb1

but that gave the same message as using the KDE mount.

What can i try next i really want to get the KDE mount tool working for people that use the computer who do not know command line stuff.?

I also gave permissions for the /mnt/usb drive in KDE for read/write so their is no problem their.

cheers, rotty

gbonvehi · 10-20-2006, 07:53 PM

Remove the auto option or it will try to mount it on boot, and there it's mounted with root permissions. By using the user option the user who mounted will be able to u/mount it.
Don't put those permissions on mount/umount, it's not secure at all.

rotty · 10-20-2006, 08:16 PM

Ok i changed "auto" to "noauto".

It also seems that the user account cannot mount ANY device because it always says

"mount:mount must be superuser to mount"

This occurs if i try any method to mount: mount /usb OR mount /dev/usb OR in KDE with the program.

BTW: Everything works under the root account (SU account), so it is only with the user account.

cheers, rotty

rotty · 10-21-2006, 12:26 AM

Ok i have got the pen drive working through sudoers.

But i can't write to the drive from the user acount?

What permissions should be on what folders?

should i use chmod 777 on /mnt/usb (This is the directory where the pen drive contents are located when the device is mounted.).

I FIXED IT: just for anyone searching "umask=000" is very important!! LOL
cheers, rotty