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I was wondering if there is a way to check the date the OS was first installed. Or maybe when it was first booted. I can't remember when i did d installation n i was just wondering if there was a way to find out.

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2 Answers 2

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Use this command:

ls -al /var/log/installer/syslog

Creation date of installer log can tell you the installation date (since it's not modified after that).

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Found here: http://ubuntuforums.org/showpost.php?p=10591868&postcount=5


Another solution is using this command:

ls -lt /usr/share/doc

Above of the default documents you can find creation date of documents for first installed applications.

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I'm using ubuntu 10.04 so 2010-04-29 is shown for default documents.

Found here: http://ubuntuforums.org/showpost.php?p=3784265&postcount=8

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I don't have any docs about this but it seems that on Ubuntu the files in /var/log/installer/ can tell you about the installation.

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