On 12/12/09 22:17, Neil Greenwood wrote: > 2009/12/11 Alex Birchall<a.birch...@mdx.ac.uk>: >> When this happens I lose all remote access to the server, but I can >> still ping it and get a speedy reply. And when I go into the server >> room to look at the server, I can see that there seems to be a lot of >> activity on the hard disk (indicated by flickering lights). >> Unfortunately, the monitor shows "No Signal Input" and nothing I do on >> the keyboard has any effect. So the only option is to physically switch >> the server off and on. > > Have you tried using the Magic SysRq key on the keyboard? > ... > The meanings of the keys, IIRC: > R - raw keyboard mode (stop X grabbing the key presses) > E - send SIGTERM to all processes > I - send SIGTERM to init > S - sync the disks > U - unmount the mounted partitions > B - reboot
It's probably worth mentioning that you need to wait a second or 2 between each key press. If you do it too quickly I have noticed it doesn't always work. HTH Al -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
