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4.6 KiB
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77 lines
4.6 KiB
ReStructuredText
Tertiary and quaternary IDE
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===========================
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The additional tertiary and quaternary IDE controllers, enabled through the :ref:`settings/peripherals:Tertiary / Quaternary IDE Controller` settings, are not supported by all BIOSes and may require manual configuration of guest operating systems. The specific details are outlined on this page.
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The following system resources are used by these additional controllers:
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.. _table:
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+----------+-------------+---------------+---+
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|Channel |Main I/O port|Status I/O port|IRQ|
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+==========+=============+===============+===+
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|Tertiary |0168h |036Eh |10 |
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+----------+-------------+---------------+---+
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|Quaternary|01E8h |03EEh |11 |
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+----------+-------------+---------------+---+
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.. note:: While the IRQ for each channel can be changed through its respective *Settings* button on :ref:`settings/peripherals:Tertiary / Quaternary IDE Controller`, many operating systems do not allow legacy (ISA or VLB) IDE controllers to use custom IRQs.
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BIOS support
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------------
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The tertiary and quaternary channels are both not visible and not bootable in any BIOS, with the exception of **MR BIOS version 3**, which provides full support for them, including bootability and INT 13h services.
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DOS and real mode
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-----------------
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DOS and other real mode operating systems rely on the BIOS-provided INT 13h services to access hard disks. These are only provided for the tertiary and quaternary channels by **MR BIOS version 3**, as mentioned above.
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Windows 95, 98 and Me
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---------------------
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The Windows 9x family will only detect and enable both additional channels during installation :ref:`if the BIOS supports them <usage/ideterqua:BIOS support>`. Each additional channel can be enabled after installation through the following procedure:
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1. Go to the *Add New Hardware* control panel.
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2. Add a *Standard IDE/ESDI Hard Disk Controller* from the *Hard disk controllers* category.
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3. Don't restart the system when asked to.
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4. Go to the *Device Manager* tab of the *System* control panel.
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5. Select the newly-added *Standard IDE/ESDI Hard Disk Controller* device from the *Hard disk controllers* category and click *Properties*.
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6. Go to the *Resources* tab.
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7. Select *Basic configuration 4* in the *Settings based on* box.
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8. Change the resource settings to match the :ref:`table above <table>`. The first *Input/Output Range* range corresponds to the **main** I/O port, the second one corresponds to the **status** I/O port, and *Interrupt Request* corresponds to the IRQ.
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* The status I/O port range is off by 6 units. Select 0368 for the tertiary channel or 03E8 for the quaternary channel.
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* The image below shows an example configuration for the tertiary channel.
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9. If both the tertiary and quaternary channels are enabled, repeat the steps above to add the other channel.
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.. image:: images/ideterqua_win98.png
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:align: center
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Windows NT, 2000 and XP
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-----------------------
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The Windows NT 4 and 5 families will automatically detect and enable both additional channels during installation, regardless of BIOS support. This auto-detection does not, however, work on machines with **Award BIOS**, except for the version which identifies itself as *Phoenix - AwardBIOS v6.00PG*, where it does work.
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.. note:: If you install the system to a hard disk on one of the additional channels, it will not be bootable if the BIOS doesn't support booting from these channels.
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On Windows 2000 only, the additional channels can be enabled after the system is installed through *Add New Hardware* similarly to Windows 95/98/Me above, although the I/O ports and IRQ cannot be changed. *Basic configuration 0003* corresponds to the **tertiary** channel, while *Basic configuration 0002* corresponds to the **quaternary** channel.
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Windows Vista and 7
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-------------------
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The Windows NT 6 family does not support legacy non-Plug-and-Play IDE controllers, and therefore cannot use the additional channels as currently implemented in 86Box.
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Linux
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-----
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On kernels 2.6.19 and newer (after the switch to ``libata``), run the ``modprobe pata_legacy probe_all=1`` command as root to enable both additional channels. Consult your distribution's documentation on how to load that module on startup.
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On kernels older than 2.6.19 (before the switch to ``libata``), add the following parameters to the kernel command line to enable their respective channels:
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* **Tertiary:** ``ide2=0x168,0x36e,10`` (assuming IRQ 10)
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* **Quaternary:** ``ide3=0x1e8,0x3ee,11`` (assuming IRQ 11)
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.. note:: Some Linux distributions may automatically detect and enable both additional channels, however, that is very rarely the case.
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