Mounting USB Drives

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Mounting USB drives

To mount a drive type:

  • mount /dev/sda1 /mnt/usbstorage

To unmount type:

  • umount /mnt/usbstorage

You can also create the following simple script to automatically mount USB drives or use the more advanced usb-storage that I've written. Here is the simple version: 

# su
# vi /etc/hotplug/usb/usb-storage
#!/bin/sh
. /etc/hotplug/hotplug.functions
if [ ! -L /var/run/usb/%proc%bus%usb%* ]; then

      mesg Try to Mount
      mount /mnt/usbstorage
      if [ $? = 0 ]; then
            ln -s /mnt/usbstorage /home/samba/USB_Storage
            ln -s /etc/hotplug/usb/usb-storage.off $REMOVER
            mesg make REMOVER in $REMOVER
      fi

fi
# chmod 755 /etc/hotplug/usb/usb-storage
# vi /etc/hotplug/usb/usb-storage.off
#!/bin/sh
. /etc/hotplug/hotplug.functions
mesg Removing /mnt/usbstorage
rm /home/samba/USB_Storage
umount /mnt/usbstorage
# chmod 755 /etc/hotplug/usb/usb-storage.off
# echo "/dev/sda1 /mnt/usbstorage vfat noauto,umask=000,noatime,iocharset=utf8,codepage=932 0 0" >> /etc/fstab

Hint: Once a USB disk is mounted, it will appear in the Files tab as well. In addition, creating a link to the mounted drive from /home/samba will allow it to be shared as well through Samba. In general, most devices such as memory sticks, cameras, mp3 players and usb harddrives have their disk partitioned as a primary partition and can be found at /dev/sda1. However, if you have partitioned your disk as an extended partition, then it most likely would be /dev/sda5. Do a fdisk -l /dev/sda as root to check and change the above accordingly.

In addition, if you are using a USB Hub, then you will be able to attach and mount multiple devices, usually up to four disks. In such a case, the devices will be /dev/sda, /dev/sdb, /dev/sdc and /dev/sdd. I have created a more advanced script which can automatically mount up to four usb disks and also automount disks partitioned as primary or extended partitions. Place this usb-storage into /etc/hotplug/usb and remove usb-storage.off if there already is one (it will generate a new one). The script will also create mount points under /mnt and update /etc/fstab as required. Alternatively, you can simply install [automounter-c3000_0.3_arm.ipk].

The C3000 can also read NTFS formatted USB disks. You will need to copy ntfs.o to /lib/modules/2.4.20/kernel/fs/ntfsfs/ or install [ntfs-zaurus_2.4.20_arm.ipk].


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