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37 lines
1.3 KiB
Markdown
37 lines
1.3 KiB
Markdown
---
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lang: en
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layout: doc
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permalink: /doc/autostart-troubleshooting/
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title: Autostart troubleshooting
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---
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The following instructions are valid for **Qubes OS R4.0 legacy mode** and
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**Qubes OS R4.1 legacy and UEFI modes**. For **Qubes OS R4.0 in UEFI mode**,
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there is no GRUB, so manual boot from another operating system is needed.
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In several cases, there is a need to prevent `autostart=True` for qubes on
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boot. For example:
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* `sys-usb` was enabled, but the only keyboard is attached via USB, and the
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`qubes.InputKeyboard` service is disabled.
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* A PCI device assigned to an autostarting qube crashes the system (e.g., a GPU
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or RAID controller card).
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To address this, there is a `qubes.skip_autostart` option for the kernel
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command line. You can use it at the grub boot menu.
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[](/attachment/doc/grub1.png)
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Press the `E` key on the first prompt (or your custom prompt). Then, press the
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down arrow key multiple times to reach the line starting with `module2`.
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[](/attachment/doc/grub2.png)
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Append `qubes.skip_autostart` to the end of this line (generally after the
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`rhgb quiet` options).
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[](/attachment/doc/grub3.png)
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Press `Ctrl+X` to boot with the edited GRUB entry. The boot will proceed as
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usual from here, except that no qube will be autostarted.
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