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Tag: ubuntu

How to close Firefox from the Ubuntu command line

About five years ago I answered a question on Superuser.com — Can I close firefox browser tab or firefox browser from ubuntu terminal? My answer to this question was to use wmctrl, a CLI program to interact with an X Window Manager. For closing the browser gracefully, wmctrl should do…

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eeePC 701 error: “This kernel requires an x86-64 CPU, but only detected an i686 CPU.”

Loading fog/os/ubuntu/12.04/i386/linux…………..[…] Loading fog/os/ubuntu/12.04/i386/initrd.gz………..[…]….ready. This kernel requires an x86-64 CPU, but only detected an i686 CPU. Unable to boot – please use a kernel appropriate for your CPU. I keep coming across this issue on my eeePC. I’ve solved it more than once, but I never make note of how…

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Nagios “NRPE: Command ‘check_disk_root’ not defined”

I had this error on nagios for the longest time. “NRPE: Command ‘check_disk_root’ not defined” This problem server, called derp is running NRPE under xinetd. Today I solved the issue! Big thanks to this answer on stackoverflow. In this answer by Jim Black, Jim says, “Be sure you killed off…

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