Stuck up at boot in Intrepid Ibex ?
In Live CD press F6 to get boot options add
acpi=off
AND in hp6515b (maybe others with such unsupported bios) also add
pnpbios=off
After install add to your /boot/grub/menu.lst to the line with kernel
acpi=off
pnpbios=off (only with unsupported bios add this)