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Kernel: Add boot argument to disable the UHCI Controller

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Helps with bare metal debugging, as we can't be sure our implementation
will work with a given machine.

As reported by someone on Discord, their machine hangs when we attempt
the dummy transfer.
This commit is contained in:
Luke 2021-04-17 20:36:53 +01:00 • committed by Andreas Kling
parent e98091ad15
commit c84107a1ab
4 changed files with 16 additions and 3 deletions
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8
Documentation/NetworkBoot.md
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@ -166,8 +166,12 @@ boot
This file can be called in any name you'd want. For the sake of simplicity in this guide,
this file is named `script.ipxe` from now on.
Don't forget to replace `X.Y.Z.W` with your HTTP server IP address.
For troubleshooting purposes, you could add `disable_physical_storage` and `disable_ps2_controller`
if you suspect our implementation fails to work with your hardware.
For troubleshooting purposes, you can add the following command line arguments if you suspect our implementation fails to work with your hardware:
- `disable_physical_storage`
- `disable_ps2_controller`
- `disable_uhci_controller`
Because iPXE (unlike GRUB) doesn't support VESA VBE modesetting when booting a multiboot kernel,
you might not see any output, so add the `boot_mode=text` argument as well to boot into VGA text mode.