I experienced the same problem on a new machine using ubuntu 6.10 DVD. the noapic option got ubuntu DVD to run. I was able to install ubuntu on my hard drive; first reboot got me the same error again, I then removed the quiet option to get the error msg reported below.
hardware is: AMD Athlon X2 3800+ EE 65W (AM2) ASUS Crosshair MotherBoard CORSAIR TWIN2X2048-6400 - DDR2-800 - 2x 1GB GIGABYTE GV-NX76T256D-RH (GeForce 7600GT) HD 160GB SATA2 PLEXTOR PX-716SA (SATA) FORTRON 400W ATX FSP400-60GLN Error msg is : [17179573.104000] ENABLING IO-APIC IRQs [17179573.108000] ..TIMER: vector=0x31 apic1=0 pin1=0 apic2=-1 pin2=-1 [17179573.112000] ..MP-BIOS bug: 8254 timer not connected to IO-APIC [17179573.112000] ...trying to set up timer (IRQ0) through the 8259A ... failed. [17179573.112000] ...trying to set up timer as Virtual Wire IRQ... failed. [17179573.112000] ...trying to set up timer as ExtINT IRQ... failed :(. [17179573.276000] Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with apic=debug and send report. Then try to boot with the 'noapic' option [17179573.276000] _ using the noapic seems to help so far -- MP-BIOS bug on Asus Pundit1 AH2 (Kernel panic) https://launchpad.net/bugs/76989 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs