Difference between revisions of "UltraBay II Floppy Drive"

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=== UltraBay II Floppy drive ===
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=== UltraBay II Floppy Drive (12J0425) ===
This is the 3.5" floppy drive for the UltraBay II slot.
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This is a floppy disk drive that slides into an UltraBay II.
 
 
 
=== Features ===
 
=== Features ===
* 3.5" 1.44Mb
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* Read/Write capabilities:
* Additional connector to allow attaching drive to proprietary external FDD connector port, allowing the ultrabay to be used for another device at the same time. Requires special cable (similar interface to a 760ED external floppy?  The floppy end connector is the same as the Thinkpad end connector on a 760ED)
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** 3.5-inch 1.44MB High Density
 
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** 3.5-inch 1.25MB Japanese Density
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** 3.5-inch 720KB Double Density
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* Activity LED
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* [[Floppy Connector#21_mm_drive|Floppy Connector port (21 mm)]]{{footnote|1}}
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{{footnotes|
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#This requires a cable (12J0432) to be able to be used externally.
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}}
 
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=== Part numbers ===
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==== TEAC FD-05U ====
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* 83H6258
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==== Sony MPF72U-1 ====
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* 20L1930
  
=== IBM Partnumbers ===
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=== Linux support ===
12J0425, cable 12J0432
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In the case that you have two FDDs, or want to attach the FDD externally after the booting process; be aware that the floppy drivers' hardware auto-detection cannot be relied upon. However, you can force the floppy driver to use both of them by adding the following line to {{path|/etc/modprobe.conf}}:
 
 
=== Linux Support ===
 
In case you have two floppy drives, or want to attach the floppy drive externally after boot, the floppy drivers hardware autodetection cannot be relied upon.<br />
 
You can force the floppy driver to use both of them by adding the following line to {{path|/etc/modprobe.conf}}:
 
 
  options floppy floppy=1,4,cmos
 
  options floppy floppy=1,4,cmos
This gives you support for either external floppy or ultrabay floppy or both if you plug them in after boot time.
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This will give you support for either external FDD, or UltraBay II FDD, or both if you plug them in after the booting process.
 
 
If at boot there is a floppy drive attached to the external port, this is fd0 and the ultrabay is fd1.  Otherwise (no floppies attached at boot/floppy in ultrabay at boot), then ultrabay is fd0 and external port is fd1.  An ACPI-aware floppy driver would have the ablility to stop the devices swapping around, but such a thing doesn't exist.
 
 
 
=== Also known (in IBM literature) as.... ===
 
  
=== ThinkPad's supporting this drive ===
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If there is a FDD attached to the external port during the boot process, it will be identified as {{path|/dev/fd0}} and the FDD in the UltraBay II will be identified as {{path|/dev/fd1}}. Otherwise (assuming no FDDs are externally attached during boot or FDD in UltraBay II during boot), the UltraBay II FDD would be assigned as {{path|/dev/fd0}} and external port would be assigned as {{path|/dev/fd1}}. An ACPI-aware floppy driver would have the ability to stop the devices from swapping around, but such a thing doesn't exist yet.
*ThinkPad {{770}}, {{770E}}, {{770ED}}, {{770X}}, {{770Z}}
 
  
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== Models supporting this accessory ==
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* {{770}}, {{770E}}, {{770ED}}, {{770X}}, {{770Z}}
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* {{SelectaDock III}}
  
[[Category:Components]]
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[[Category:Ultrabay Devices]]

Latest revision as of 16:34, 12 October 2020

UltraBay II Floppy Drive (12J0425)

This is a floppy disk drive that slides into an UltraBay II.

Features

  • Read/Write capabilities:
    • 3.5-inch 1.44MB High Density
    • 3.5-inch 1.25MB Japanese Density
    • 3.5-inch 720KB Double Density
  • Activity LED
  • Floppy Connector port (21 mm)1

FOOTNOTES [Δ]
  1. This requires a cable (12J0432) to be able to be used externally.

Part numbers

TEAC FD-05U

  • 83H6258

Sony MPF72U-1

  • 20L1930

Linux support

In the case that you have two FDDs, or want to attach the FDD externally after the booting process; be aware that the floppy drivers' hardware auto-detection cannot be relied upon. However, you can force the floppy driver to use both of them by adding the following line to /etc/modprobe.conf:

options floppy floppy=1,4,cmos

This will give you support for either external FDD, or UltraBay II FDD, or both if you plug them in after the booting process.

If there is a FDD attached to the external port during the boot process, it will be identified as /dev/fd0 and the FDD in the UltraBay II will be identified as /dev/fd1. Otherwise (assuming no FDDs are externally attached during boot or FDD in UltraBay II during boot), the UltraBay II FDD would be assigned as /dev/fd0 and external port would be assigned as /dev/fd1. An ACPI-aware floppy driver would have the ability to stop the devices from swapping around, but such a thing doesn't exist yet.

Models supporting this accessory