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Is there any way to find out if the OS i'm running (actually installing) is running in a VMWare machine. I need to disable ntp settings if the automated install is done on a virtual machine but keep them enabled if not. VMWare tools are not installed when this check is done.

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3 Answers 3

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 count=$(lshw | grep -i vmware | wc -l) ; if [ "$count" -gt 0 ] ; then echo "disable ntp" ; else echo "enable ntp" ; fi

Obviously change the echo's to the commands you want.

Note: this will only work for VMware. You'll need to make that grep -i "vmware\|virtualbox\|xen" or something similar (look at the lshw output on virtualbox or xen to see what the exact strings are) if you're using different virtualisation systems.

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May also work to just look at /proc/cpuinfo with a similar grep statement (less processing than lshw). –  Kees Cook Nov 1 '10 at 17:43
    
@Kees-Cook: nah, /proc/cpuinfo on my VMware claims to be an Intel Xeon. –  maco Nov 1 '10 at 19:24

For VMWare, the vmware-checkvm tool can help. It's part of the open-vm-tools package.

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Can you determine this post-installation? If so, I'd write a script to run after installing VMware tools and adjust system daemons then. Pre-installation, it could be difficult to come up with a universal solution to the problem.

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