Bootable media startup parameters

Here, you can set bootable media startup parameters in order to configure rescue media boot options for better compatibility with different hardware. Several options are available (nousb, nomouse, noapic, etc.). These parameters are provided for advanced users. If you encounter any hardware compatibility problems while testing boot from the rescue media, it may be best to contact Acronis Technical Support.

To add a startup parameter

  • Enter a command into the Parameters field.
  • Having specified the startup parameters, click Next to continue.

Additional parameters that can be applied prior to booting Linux kernel


The following parameters can be used to load Linux kernel in a special mode:

  • acpi=off

Disables ACPI and may help with a particular hardware configuration.

  • noapic

Disables APIC (Advanced Programmable Interrupt Controller) and may help with a particular hardware configuration.

  • nousb

Disables loading of USB modules.

  • nousb2

Disables USB 2.0 support. USB 1.1 devices still work with this option. This option allows using some USB drives in USB 1.1 mode, if they do not work in USB 2.0 mode.

  • quiet

This parameter is enabled by default and the startup messages are not displayed. Deleting it will result in the startup messages being displayed as the Linux kernel is loaded and the command shell being offered prior to running the Acronis program.

  • nodma

Disables DMA for all IDE disk drives. Prevents kernel from freezing on some hardware.

  • nofw

Disables FireWire (IEEE1394) support.

  • nopcmcia

Disables PCMCIA hardware detection.

  • nomouse

Disables mouse support.

  • [module name]=off

Disables the module (e.g. sata_sis=off).

  • pci=bios

Forces to use PCI BIOS, and not to access the hardware device directly. For instance, this parameter may be used if the machine has a non-standard PCI host bridge.

  • pci=nobios

Disallows use of PCI BIOS; only direct hardware access methods are allowed. For instance, this parameter may be used if you experience crashes upon boot-up, probably caused by the BIOS.

  • pci=biosirq

Uses PCI BIOS calls to get the interrupt routing table. These calls are known to be buggy on several machines and they hang the machine when used, but on other computers it is the only way to get the interrupt routing table. Try this option, if the kernel is unable to allocate IRQs or discover secondary PCI buses on your motherboard.

  • vga=ask

Gets the list of the video modes available for your video card and allows selecting a video mode most suitable for the video card and monitor. Try this option, if the automatically selected video mode is unsuitable for your hardware.

Bootable media startup parameters