the only thing i have in /mnt is cdrom and windrive

the only things in mnt are cdrom and windrive

so that means your flashdrive isn't mounted

in terminal type in "fdisk -l"
as root, that's a dash and little L

do that with usb in computer

it will see usb as sdc1, sdf1, sdb1, etc

then make a mountpoint
"mkdir /mnt/sdxx"
where xx is the flashdrive
like
"mkdir /mnt/sdb1"
then mount it
"mount /dev/sdb1 /mnt/sdb1"
now its mounted and should appear under /mnt in file manager

YOU MUST USE THE UNMOUNT COMMAND before you take the usb out!!
use
"umount /mnt/sdb1"

if you pull the usb out of computer before unmounting it will damage it

ok i have /dev/sda: 8029 Mb

then i have
Device boot /dev/sda1

witch one is it

is your usb 8gb?

if so that's it
sda1 is your usb

so to open a root file manager in terminal
become root and
"nautilus"
and then access the usb

ok i got it mounted and transfering the files
i hope its moving them to the usb lol

i get this msg in terminal. (nautilus:6843):Gtk-Critical **: file gtkprogress.c: line 583 (gtk_progress_set_precentage) assertion 'percentage >= 0 && percentage <= 1.0' failed

ok i got it to work. how do i thank you?

just click the thumbs-up button there-->below
and also mark the thread "solved" by using the "thread tools"
right above the title of your 1st post above, to the right

And you can help me with redhat
cause I need to learn it

@l3it: you need to answer questions if we are to help you. Please reread and respond to post #11. Thank you.

[edit]I see you got it to work - well done.