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I have a headless Ubuntu Server 11.04 box. If I use:

sudo shutdown -P now

It works every time. However, if I instead want to simply restart the machine:

sudo shutdown -r now

It fails to do so. Here's a screenshot of what I get when I attempt to shutdown with restart (couldn't figure out which log to get this from). It simply spits this out on the screen and then doesn't progress any further. I have to hold the power button in to turn the machine off after this:

enter image description here (link to full-size image)

Can anyone surmise what might be the problem here? Or perhaps provide some guidance as to how I might diagnose this?

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You should file a bug report on

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up vote 0 down vote accepted

After upgrading to 11.10, this now works fine.

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Inspect your log files, they're located in the directory /var/log/

You can use the gnome-system-log tool to do so.

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