Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

This question already has an answer here:

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.

share|improve this question

marked as duplicate by blade19899, falconer, Aditya, Radu Rădeanu, guntbert Jan 10 at 20:56

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2 Answers 2

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).

enter image description here

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.

enter image description here

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

share|improve this answer

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.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.