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Serial: rephrase legacy UART vs UEFI serial section

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Stephan de Wit 2022-05-03 14:48:41 +02:00
parent 4355d5e554
commit 10b53c5eef
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9
source/hardware/serial_connectivity.rst
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@ -23,11 +23,10 @@ The baudrate should be set to :code:`115200,8N1`
**Legacy UART vs. UEFI serial**
=====================================================================================================================
Starting from OPNsense 22.1 (22.4 for the business edition), support for legacy serial UART0 communication is dropped,
since the upgrade to FreeBSD 13-STABLE required a switch to the UEFI serial protocol.
Prior to this, only legacy serial UART0 was possible. Should you connect your Deciso appliance with a serial line
and get limited output / no output from the point of handover to the OS, it is important your BIOS settings are updated
to disable legacy UART.
Starting from OPNsense 22.1 (22.4 for the business edition) and the change to FreeBSD 13-STABLE, support for EFI
serial has changed, which requires EFI based systems to disable legacy support to prevent confusing the operating system.
Should you connect your Deciso appliance with a serial line and get limited output / no output from the point of
handover to the OS, it is important your BIOS settings are updated to disable legacy UART.
While in the BIOS, go to Setup Utility --> AMD CBS --> FCH Common Options --> UART Configuration Options --> UART 0 Legacy Options.
and make sure this setting is set to **Disabled**.