Did some testing and now my system boots with 2.6.7-1.469. Here is a diff between my .config and kernel-2.6.7-i686-smp *Note - I also checked PIV, and preempt for my use! $ diff .config configs/kernel-2.6.7-i686-smp.config 73c73 < # CONFIG_M686 is not set --- > CONFIG_M686=y 77c77 < CONFIG_MPENTIUM4=y --- > # CONFIG_MPENTIUM4 is not set 91a92 > CONFIG_X86_PPRO_FENCE=y 99,103c100,104 < # CONFIG_X86_4G is not set < # CONFIG_X86_SWITCH_PAGETABLES is not set < # CONFIG_X86_4G_VM_LAYOUT is not set < # CONFIG_X86_UACCESS_INDIRECT is not set < # CONFIG_X86_HIGH_ENTRY is not set --- > CONFIG_X86_4G=y > CONFIG_X86_SWITCH_PAGETABLES=y > CONFIG_X86_4G_VM_LAYOUT=y > CONFIG_X86_UACCESS_INDIRECT=y > CONFIG_X86_HIGH_ENTRY=y 109c110 < CONFIG_PREEMPT=y --- > # CONFIG_PREEMPT is not set 126c127 < CONFIG_NOHIGHMEM=y --- > # CONFIG_NOHIGHMEM is not set 128c129,133 < # CONFIG_HIGHMEM64G is not set --- > CONFIG_HIGHMEM64G=y > CONFIG_HIGHMEM=y > CONFIG_X86_PAE=y > # CONFIG_NUMA is not set > CONFIG_HIGHPTE=y 1729d1733 < # CONFIG_VIDEO_MEYE is not set 2397a2402 > # CONFIG_DEBUG_HIGHMEM is not set