Comment 10 for bug 172788

I have the same issue, can not boot Ubuntu 11.10.
I am using USB bootable drive. The USB drive works on other Toshiba PC.
I have HP Pavilion a1320n desktop PC.

It start booting, but getting the following error:
] ACPI: Core revision 20110413
] trace: allocating 24885 entries in 49 pages
] Enabling APIC mode: Flat using 1ICO APICS
] .. TIMER: vector=0 x 30 apic=0 pin1=0 apic2=-1 pin2=-1
] .. MP-BIOS bug: 8254 timer not connected
] ... trying to set up timer (IRQ0) throught the 8259(A) ...
] .... (found apic 0 pin0 ) ....
] ....... failed.
] ... trying to set up timer as EXTINT IRQ
] ....... failed
] Kernal panic - not syncing: IO-APIC + timer doesn't work? Boot with apic=debug and send report. Then try booting with noapic option.

Why it can not access Timer?
How to boot with noapic option?
Help would be appropriated.
Thanks