Batch write multiple usb in same time Post: 302574717

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Top Forums Shell Programming and Scripting Batch write multiple usb in same time Post 302574717 by felipe.vinturin on Friday 18th of November 2011 06:29:35 AM

11-18-2011

Registered User

I think there is something wrong with your script!
If you are mounting your device to: /media/usb, why you are creating the directories like this: "mkdir /media/$numbers", it should be: "mkdir /media/usb/$numbers". Also, if I understood what you want, why you are formatting your usb every loop?

Try this:

Code:

checkRetCode ()
{
	lstRetCode=${?}
	lineNo="${1}"
	
	if [ ${lstRetCode} -ne 0 ]
	then
		echo "Last command returned and invalid code: [${lstRetCode}]. Line number: [${lineNo}]."
		exit 1
	fi
}

processUsbDev ()
{
	usbDevName="${1}"
	baseMountPoint="${2}"
	numDirs="${3:-999}"
	numRetries="${4:-3}"

	usbDev="/dev/${usbDevName}"

	echo "Formatting usb disk: [${usbDev}]"
	mkfs.vfat -F32 "${usbDev}"
	checkRetCode "${LINENO}"

	mountPoint="${baseMountPoint}/${usbDevName}"
	if [ ! -d "${mountPoint}" ]
	then
		mkdir "${mountPoint}"
		checkRetCode "${LINENO}"
	fi
	
	echo "Mounting disk: [${usbDev}] under: [${mountPoint}]"
	mount ${usbDev} ${mountPoint}
	checkRetCode "${LINENO}"
	
	countDirs=1
	echo "Creating directories under: [${mountPoint}] - [${countDirs}][${numDirs}]..."
	
	while [ ${countDirs} -le ${numDirs} ] 
	do
		countDirStr=`echo "${countDirs}" | awk '{printf("%03d\n", $0)}'`
		createDir="${mountPoint}/${countDirStr}"
		
		countRetries=0
		while true
		do
			mkdir "${createDir}"
			retCode=${?}
			if [ ${retCode} -ne 0 ]
			then
				if [ ${countRetries} -ge ${countRetries} ]
				then
					echo "Failed to create directory: [${createDir}]!"
					break
				fi
			else
				break
			fi
			countRetries=`expr ${countRetries} + 1`
		done
		
		countDirs=`expr ${countDirs} + 1`
	done
	
	umount ${usbDev}
	checkRetCode "${LINENO}"
}

echo "Press any key to start!"
read

processUsbDev "sdc1" "/media/usb" "999" "3"

I was unable to test it, but should work!

Last edited by felipe.vinturin; 11-18-2011 at 08:04 AM..

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LEARN ABOUT FREEBSD

ehci

EHCI(4) 						   BSD Kernel Interfaces Manual 						   EHCI(4)

NAME

     ehci -- USB Enhanced Host Controller driver

SYNOPSIS

     device ehci

DESCRIPTION

     The ehci driver provides support for the USB Enhanced Host Controller Interface, which is used by USB 2.0 controllers.

     EHCI controllers are peculiar in that they can only handle the USB 2.0 protocol.  This means that they normally have one or more companion
     controllers (i.e., ohci(4) or uhci(4)) handling USB 1.x devices.  Consequently each USB connector is electrically connected to two USB con-
     trollers.	The handling of this is totally automatic, but can be noticed since USB 1.x and USB 2.0 devices plugged in to the same connector
     appear to connect to different USB busses.

SEE ALSO

     ohci(4), uhci(4), usb(4), xhci(4)

HISTORY

     The ehci device driver first appeared in FreeBSD 5.1.

LOADER TUNABLES

     When the kernel has been compiled with options USB_DEBUG, some tunables become available that affect the behavior of ehci.  These tunables
     can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).

     hw.usb.ehci.lostintrbug
	     This tunable enables the lost interrupt quirk.  The default value is 0 (off).

     hw.usb.ehci.iaadbug
	     This tunable enables the EHCI doorbell quirk.  The default value is 0 (off).

     hw.usb.ehci.no_hs
	     This tunable disables USB devices to attach like HIGH-speed ones and will force all attached devices to attach to the FULL- or LOW-
	     speed companion controller.  The default value is 0 (off).

BSD
								   March 4, 2012							       BSD