LXer: How To Find Out Linux Operating System (OS) Installation Date And Time?

LXer · 08-14-2019, 06:03 PM

Published at LXer:

This tutorial help you to check when the Linux Operating system was installed on your system.

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djk44883 · 08-14-2019, 07:15 PM

On Debian, and presumably Debian based system check

/var/log/installer

syslog

search rtc_cmos - setting system clock | clock-setup

or stat syslog

Xorg.0.log always notes the date when it starts a log - Log file: "/var/log/Xorg.0.log", Time:

greencedar · 08-15-2019, 08:29 AM

Good article.

On my new Linux 19.1 OS:

Code:

~$ ls -lact --full-time /etc | tail -1 | awk '{print $6,$7}'
2019-07-20 15:55:58.388972165

Anybody else like to give us your information when your Linux OS was installed?

djk44883 · 08-15-2019, 02:33 PM

Quote:

Originally Posted by greencedar

Good article.

On my new Linux 19.1 OS:

Where did you get that? Linux it's self OS, not just based on linux kernel!?

greencedar · 08-15-2019, 04:10 PM

Quote:

Originally Posted by djk44883

Where did you get that? Linux it's self OS, not just based on Linux kernel!?

I am not sure if I understand your question.

I bought a new tower that had Windows 10 installed when I bought it and I deleted the Windows 10 and installed Linux Mint 19.1, Cinnamon 64-bit, Tessa.

The kernel information of the installed Linux 19.1 OS is:

Quote:

~$ uname -r
4.15.0-55-generic

I got the code information that I listed in my post in the article that I reviewed, "How to Find Out Linux Operating system (OS) Installation And Time". If you read the article you can find the code.

Timothy Miller · 08-15-2019, 04:21 PM

Code:

ls -lact --full-time /etc | tail -1 | awk '{print $6,$7}'
2019-04-22 07:07:24.716003963

This is on my work laptop...

djk44883 · 08-15-2019, 05:15 PM

Quote:

Originally Posted by greencedar

I am not sure if I understand your question.

I bought a new tower that had Windows 10 installed when I bought it and I deleted the Windows 10 and installed Linux Mint 19.1, Cinnamon 64-bit, Tessa.

I didn't understand "Linux Mint 19.1" is a Linux based OS, not actually Linux 19.1 OS.

Linux Mint is based on Ubuntu, Ubuntu is based on Debian, Debian is built on the Linux kernel.

Linux it's self, is not a stand alone OS. As I understand.

greencedar · 08-15-2019, 07:33 PM

Quote:

Originally Posted by djk44883

I didn't understand "Linux Mint 19.1" is a Linux based OS, not actually Linux 19.1 OS.

Linux Mint is based on Ubuntu, Ubuntu is based on Debian, Debian is built on the Linux kernel.

Linux it's self, is not a stand alone OS. As I understand.

Now I fully understand your reasoning. Thank you.