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+---
+lang: en
+layout: doc
+permalink: /doc/skip-qubes-autostart/
+title: Skip Qubes OS autostart
+---
+
+The following instructions are valid for Qubes OS R4.0 *legacy mode* only and Qubes OS R4.1 *legacy* and *UEFI* modes. For Qubes OS R4.0 in UEFI mode, we don't have GRUB so manual boot from another operating system is needed.
+
+In several cases, it is needed to prevent `autostart=True` for qubes on boot. For example:
+
+* `sys-usb` was enabled but the only keyboard is on USB and qubes.InputKeyboard service is disabled,
+* Some PCI device assigned to autostart VM crashes the system (e.g. GPU or RAID controller cards).
+
+For that, there exists `qubes.skip_autostart` option on kernel command line. In order to use it, at the grub boot menu,
+
+[![grub1.png](/attachment/doc/grub1.png)](/attachment/doc/grub1.png)
+
+press `e` on the first entry (or any of your usual/custom entry). Then, press down key multiple times to reach the line starting by `module2`.
+
+[![grub2.png](/attachment/doc/grub2.png)](/attachment/doc/grub2.png)
+
+Append to the end of this line (generally after `rhgb quiet` options) `qubes.skip_autostart`
+
+[![grub3.png](/attachment/doc/grub3.png)](/attachment/doc/grub3.png)
+
+and press `Control-x` to boot the edited GRUB entry. The boot proceeds as usual with LUKS password prompt and then boot only the Qubes services without starting any qube.