DMP1 HD Cartridge

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Contents 1 Specs 2 Plugging Into The PC 3 Gallery 4 Upgrading the Internal Hard Disk 5 Cross Reference (Unconfirmed) & Replacement 6 See also 7 External link

Specs

The DMP1 HD cartridge is a specially made cartridge made to fit into the DMP1 main housing unit. The unit contains electronics to support a Toshiba MK2023GAS 2.5" 20 GB Hard Disk, an eject button and drive power and activity lights. The USB port is Version 2 and backward compatible with Version 1.1.

The file system on the Internal Hard Disk *must* have the following characteristics:

• (Microsoft) FAT32 Files System
• Partition 0 (first partition)
• Primary partition (not a logical partition)
• Partition may be Active or Non-active

This unit, when inserted into the DMP1 main assembly, is powered from the DMP1 through the five electrical connectors on the underside of the HD Cartridge and is believed to be an USB interface. As it's mounted into the Linux system, the kernel reports the following information for this HD cartridge:

CONFIGURED HOTPLUGGING
kusbd: /sbin/hotplug add 2<6>hub.c: USB new device connect on
bus1/1/1, assigned
device number 3
CONFIGURED HOTPLUGGING
kusbd: /sbin/hotplug add 3<6>hub.c: USB new device connect on
bus1/1/4, assigned
device number 4
scsi0 : SCSI emulation for USB Mass Storage devices
 Vendor: TOSHIBA   Model: MK2023GAS         Rev: MA01
 Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 39070080 512-byte hdwr sectors (20004 MB)
Partition check:
 /dev/scsi/host0/bus0/target0/lun0: p1
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 4
CONFIGURED HOTPLUGGING

Plugging Into The PC

Used with the DMP1 HD USB Cable and the DMP1 HD Power Adapter, this HD Cartridge can be connected to a PC's USB port.

• Linux Machine

If you have the proper USB hotplug drivers installed, the cartridge will be recognized as a Mass Storage Media and the internal HD will be recognized as a Toshiba MK2023GAS and it will usually be assigned a device name as /dev/sdax. If this is the first external HD, then it will be /dev/sda0. You can then mount this device as follows:

# mkdir /mnt
# mount -t vfat -o user,rw,exec,umask=000 /dev/sda0 /mnt
# cd /mnt
# _

Actually, many Linux kernels are smart enough to figure out what type of HD this is, and may only require a shorter mount command:

# mkdir /mnt
# mount /dev/sda0 /mnt
# cd /mnt
# _

• Windows PC

On Windows 2000 and XP machines, the device will be automatically detected and drivers for the Mass Storage Device and the accompanying internal HD will be automatically loaded. You will see the progress of the driver installation on the Windows Desktop. It will appear in your My Computer window as the next available drive letter. For example, if you have a C:\ drive for your main HD, D:\ drive as your CD-ROM, then your Omnifi cartridge will be mounted as E:\. There *may* be a garbled volume label associated with it. This volume label has been found to be benign and if you'd like to change it, you would be able to do so from this screen.

On Windows 95/98 machines, you may have to obtain and install a driver for USB Mass Storage Device before the HD cartridge will be recognized. The DMP1 kit does not come with such a driver.

Gallery

Click on an image to for an enlarged view.

Top View

Bottom View

Front View

Back View

Photos courtesy of Kress <kresstex>

Upgrading the Internal Hard Disk

Techfire's step-by-step instructions on replacing the internal HD. Pay particular attention to the partitioning and formatting instructions using Partition Magic.

This is a do-it-yourself project as there is no one who offers to perform this upgrade commercially. Therefore, you must bear all of the risks involved in this process.

Cross Reference (Unconfirmed) & Replacement

• No known Cross Reference
• Some members of the Omnifi Yahoo forum have been successful in contacting OmnifiMedia for replacement units (subject to restocking and shipping fees). Contact OmnifiMedia Support through their email support and ask for a RMA.

Hard Disks and Cartridges are known to become damaged for a number of reasons. The major one of course is incorrect voltage and or polarity at the power terminals. Many AC adapters look alike and with the DMP1's adapter in particular, you must exercise caution when plugging it up to a power source.

• Crushed by a moron friend.
• Delivered in a broken state.
• Suddenly croaked.
• Temperature Out Of Range message appeared and would not go away.
• Used the wrong adapter and applied the wrong voltage to the DMP1 HD unit

See also

• DMP1 HD Power Adapter
• DMP1 HD USB Cable
• DMP1 HD Cartridge
• DMP1 Wireless Antenna

External link

Techfire's UNOFFICIAL Omnifi Mod Site

• List links to sites that carry replacement disk drives
• Other link

Bamboo Sheets

--Lumkichi 08:13, 25 Oct 2005 (CDT)