Description of problem: On A Dell Optiplex 745 with Hardware config matching http://www.smolts.org/show?UUID=5b670987-1ef7-46b3-8e4b-38321240edb3 no matter what method is selected a machine can not be restarted. I have tried reboot shutdown -r now and the graphical options for restarting. The machine starts the shutdown sequence and everything appears to be shutdown correctly and you can see the message indicating that the machine should now restart. At which point it hangs. Version-Release number of selected component (if applicable): How reproducible: Everytime Steps to Reproduce: 1. Install System and it wont reboot after completion Or 2. type reboot inside a terminal Or 3. type shutdown -r now within a terminal Actual results: System Hangs Expected results: System Reboots Additional info:
Try adding "reboot=h" on the end of your kernel parameters in /boot/grub/grub.conf. For example: kernel /boot/vmlinuz-2.6.18-8.1.14.el5 ro root=LABEL=/1 rhgb quiet reboot=h -- Andrew
Tried this no change to behaviour Anything else I should try or information I can provide ? :) Clint
Clint, I had this same problem with the Dell Optiplex 745, but I'm running RHEL5. I assume you also rebooted after making the change to grub to make it active? The "reboot" kernel argument can take several options. I tried them each until I found one that worked. Here's the info regarding the reboot argument: This option controls the type of reboot that Linux will do when it resets the computer (typically via /sbin/init handling a Control-Alt-Delete). The default as of v2.0 kernels is to do a `cold' reboot (i.e. full reset, BIOS does memory check, etc.) instead of a `warm' reboot (i.e. no full reset, no memory check). It was changed to be cold by default since that tends to work on cheap/broken hardware that fails to reboot when a warm reboot is requested. To get the old behaviour (i.e. warm reboots) use reboot=w or in fact any word that starts with w will work. Other accepted options are `c', `b', `h', and `s', for cold, bios, hard, and SMP respectively. The `s' takes an optional digit to specify which CPU should handle the reboot. Options can be combined where it makes sense, i.e. reboot=b,s2 -- From http://tldp.org/HOWTO/BootPrompt-HOWTO-3.html
Hi It turns out the reboot=b option works for me. Thanks for the help. I guess this is more of a feature than a bug :)