Disconnecting an IOMEGA USB Zip 250

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Hello all,

I'm hoping that someone here will be able to help with this. I've checked the 
web, and posted to a couple of forums without getting any results. 
I'm running Fedora Core 3 with all current updates installed. The kernel is 
2.6.10-1.770_FC3.

I have a Iomega Zip250 USB powered drive which seems to work fine. However, 
when I disconnect the drive from a USB port, the following messages are written 
to my /var/log/messages file.

[quote]
Mar 14 11:44:02 amethyst kernel: sda : READ CAPACITY failed.
Mar 14 11:44:02 amethyst kernel: sda : status=0, message=00, host=7, driver=00 
Mar 14 11:44:02 amethyst kernel: sda : sense not available. 
Mar 14 11:44:02 amethyst kernel: sda: Write Protect is off
[end quote]

This message keeps repeating. Not knowing how to stop this, I rebooted my 
system. I then ran a test using a ScanDisk 128MB USB memory stick and running 
"tail -f /var/log/messages" in a terminal window. I plugged the stick in, 
mounted it, unmounted it and removed the device. This was followed my doing the 
same with my Zip250. The results of the /var/log/messages are below:

[memory stick]
Mar 14 17:41:01 amethyst kernel: usb 4-3: new high speed USB device using ehci_hcd and address 2
Mar 14 17:41:02 amethyst kernel: SCSI subsystem initialized
Mar 14 17:41:02 amethyst kernel: Initializing USB Mass Storage driver...
Mar 14 17:41:03 amethyst kernel: scsi0 : SCSI emulation for USB Mass Storage devices
Mar 14 17:41:03 amethyst kernel: usbcore: registered new driver usb-storage
Mar 14 17:41:03 amethyst kernel: USB Mass Storage support registered.
Mar 14 17:41:08 amethyst kernel:   Vendor: Generic   Model: STORAGE DEVICE    Rev: 0026
Mar 14 17:41:08 amethyst kernel:   Type:   Direct-Access                      ANSI SCSI revision: 00
Mar 14 17:41:08 amethyst scsi.agent[5724]: disk at /devices/pci0000:00/0000:00:07.3/usb4/4-3/4-3:1.0/host0/target0:0:0/0:0:0:0
Mar 14 17:41:08 amethyst kernel: SCSI device sda: 256000 512-byte hdwr sectors (131 MB)
Mar 14 17:41:08 amethyst kernel: sda: Write Protect is off
Mar 14 17:41:08 amethyst kernel: sda: assuming drive cache: write through
Mar 14 17:41:08 amethyst kernel: SCSI device sda: 256000 512-byte hdwr sectors (131 MB)
Mar 14 17:41:08 amethyst kernel: sda: Write Protect is off
Mar 14 17:41:08 amethyst kernel: sda: assuming drive cache: write through
Mar 14 17:41:08 amethyst kernel:  sda: sda1
Mar 14 17:41:08 amethyst kernel: Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
Mar 14 17:41:08 amethyst fstab-sync[5805]: added mount point /media/usbdisk for /dev/sda1
Mar 14 17:41:38 amethyst kernel: usb 4-3: USB disconnect, address 2
Mar 14 17:41:39 amethyst fstab-sync[5886]: removed mount point /media/usbdisk for /dev/sda1
Mar 14 17:41:57 amethyst kernel: usb 1-2: USB disconnect, address 3
Mar 14 17:41:57 amethyst hal.hotplug[5936]: DEVPATH is not set

[Zip250]
Mar 14 17:42:02 amethyst kernel: usb 6-1: new full speed USB device using ohci_hcd and address 2
Mar 14 17:42:02 amethyst kernel: scsi1 : SCSI emulation for USB Mass Storage devices
Mar 14 17:42:07 amethyst kernel:   Vendor: IOMEGA    Model: ZIP 250           Rev: 90.V
Mar 14 17:42:07 amethyst kernel:   Type:   Direct-Access                      ANSI SCSI revision: 00
Mar 14 17:42:10 amethyst kernel: sda: Spinning up disk.....<5>Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
Mar 14 17:42:10 amethyst scsi.agent[6190]: disk at /devices/pci0000:00/0000:00:07.1/usb6/6-1/6-1:1.0/host1/target1:0:0/1:0:0:0
Mar 14 17:42:53 amethyst kernel: sda: Spinning up disk.........ready
Mar 14 17:42:53 amethyst kernel: SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
Mar 14 17:42:53 amethyst kernel: sda: Write Protect is off
Mar 14 17:42:53 amethyst kernel: sda: assuming drive cache: write through
Mar 14 17:42:53 amethyst kernel: SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
Mar 14 17:42:53 amethyst kernel: sda: Write Protect is off
Mar 14 17:42:53 amethyst kernel: sda: assuming drive cache: write through
Mar 14 17:42:53 amethyst kernel:  sda: sda1
Mar 14 17:42:54 amethyst fstab-sync[6229]: added mount point /media/IOMEGA for /dev/sda1
Mar 14 17:43:16 amethyst kernel: sda: Spinning up disk....<6>Device not ready.  Make sure there is a disc in the drive.
Mar 14 17:43:16 amethyst fstab-sync[6244]: removed mount point /media/IOMEGA for /dev/sda1
Mar 14 17:43:27 amethyst kernel: sda : READ CAPACITY failed.
Mar 14 17:43:27 amethyst kernel: sda : status=0, message=00, host=7, driver=00 
Mar 14 17:43:27 amethyst kernel: sda : sense not available. 
Mar 14 17:43:27 amethyst kernel: sda: Write Protect is off
Mar 14 17:43:27 amethyst kernel: sda: assuming drive cache: write through

As you can see, I was able to disconnect the memory stick without problems, but 
for some reason the disconnect of the Zip does not seem to be recognized. 

Alan Stern on the linux-usb-users list thought the issue may be with the haldaemon and suggested that I try turning it off.
I did this and I no longer received any messages written to /var/log/messages. After restarting the haldaemon the messages returned. He, Stern, then suggested that I post the problem to this list.


Any help will be greatly appreciated!!

Thank you,

Kent R. Frazier, K5KNT



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