I have a problem using any of the following: reboot halt init 6 init 0 shutdown -r now shutdown -h now The last kernel version I have in which these worked properly was 2.4.6-ac2, the desired effect obviously being that I can reboot of halt my machine, the actual result being that no matter which command is executed the machine runs its shutdown scripts, unmounts the filesystems and then says "INIT: no more processes left at this run level" at which point I can only use SysRq. I can do a SysRq-s,SysRq-u,Sys-b and reboot, I can also look at active kernel threads (processes) and all of them look fine, every once in a while khubd (I have a usb keyboard and mouse) gets stuck in 'Z' state but the keyboard still works when it does. Anyway the basics about this machine is that it is a Tyan Tiger 230 (Via 133A Dual w/ via686b UDMA) with (2) 1 GHz Pentium III Coppermine FC-PGA chips, 1 GB of Registered ECC RAM, the BIOS is set to use PNP and set to use ACPI. I have ACPI enabled, but on the system portion so all I should be getting is the ability to shutdown/reboot using ACPI. I also am using MPS 1.1, I have tried 1.4 though and it doesn't have any effect. Thanks for any help, and my .config file is attached. Jordan