I am running Ubuntu and had this issue where one day the system just decided not to boot. I wandered around blindly, and somehow came across these two little parameters. Now, each time if I type edd=on and nolapic to the linux line of the boot commands, the system boots as it should.

What is this edd=on and nolapic, and why do I need to type these custom commands to boot into Ubuntu linux? I feel like if I understand what they mean I can understand the problem, and maybe fix it forever.

PS: what is the name for the list of boot commands I am referring to? Is it just the "boot command list", or "bootload script"? Thanks!

1 Answer

EDD BIOS Enhanced Disk Drive Services, APIC Advanced Programmable Interrupt Controller

noapic [SMP,APIC] Tells the kernel to not make use of any IOAPICs that may be present in the system.
edd= [EDD] Format: {"off" | "on" | "skip[mbr]"}

You can find details in your distribution's documentation (ubuntu) and in the online documentation of the kernel’s command-line parameters

Your Answer

Sign up or log in

Sign up using Google Sign up using Facebook Sign up using Email and Password Submit

Post as a guest

Post Your Answer Discard

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy