I'm having this same problem "MP-BIOS bug: 8254 timer..." hang after upgrading from Breezy to Dapper. My system is a ST20G5.
acpi=off: bypasses the above error, but then it appears to hang while loading X-windows., pci=noacpi: bypasses the above error, but then it appears to hang while loading X-windows. noapic: causes a; "<0>Kernel panic - not syncing: Attempted to kill init!" error. noapic nolapic: causes a; "<0>Kernel panic - not syncing: Attempted to kill init!" error noacpi noapic: causes a; "<0>Kernel panic - not syncing: Attempted to kill init!" error. noacpi noapci nolapic: bypasses the above errors, but then it appears to hang while loading file system. My system is now a brick after upgrading. How do fix this? -- freeze at startup https://launchpad.net/bugs/38263 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs