Appendix C. Startup Parameters Additional parameters that can be applied prior to booting Linux kernel Description 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 USB modules loading. ? 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 very Acronis program. ? nodma Disables DMA for all IDE disc 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, not access the hardware device directly. For instance, this parameter may be used if the machine has a non-standard PCI host bridge. 67 68 ? 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.
