How to copy file from Internal HD to External HD using command promt?(using slax) I cannot copy and paste by right click mouse.They said i don't have permission to write on disk. Is this mean i need to use command?
Open your terminal (command prompt) and make sure you are root.
You can see a list of drives that are currently mounted (ready for use) by typing: mount
For other info to see sizes you can use: df -Th or fdisk -l
Look for the letters/numbers that relate to your drives. They will look something like /mnt/sda2 or /mnt/hda1
Now you can copy from the HD to the EHD using the letters/numbers.
I am having the very same problem, I followed your procedure jayflood,
root@slax:~# umount /dev/sda6
root@slax:~# mkdir /mnt/external
root@slax:~# mount /dev/sda6 /mnt/external
root@slax:~# touch /mnt/external/testfile.txt
touch: cannot touch `/mnt/external/testfile.txt': Read-only file system